diff --git a/lib/plugins/company.js b/lib/plugins/company.js
new file mode 100644
index 00000000..ac48974e
--- /dev/null
+++ b/lib/plugins/company.js
@@ -0,0 +1,1187 @@
+var Plugin = require('../plugin');
+
+//
+// [Usage]
+//
+// https://github.com/skygragon/leetcode-cli-plugins/blob/master/docs/company.md
+//
+var plugin = new Plugin(100, 'company', '2017.12.18',
+ 'Plugin to query by company for free user.');
+
+// NOTE: those data is collected from different websites that has similar questions:
+// * careercup.com
+// * lintcode.com
+// * 1point3acres.com
+// * other results from google search
+var COMPONIES = {
+ '1': ['adobe', 'airbnb', 'amazon', 'apple', 'bloomberg', 'dropbox', 'facebook', 'linkedin', 'microsoft', 'uber', 'yahoo', 'yelp'],
+ '2': ['adobe', 'airbnb', 'amazon', 'bloomberg', 'microsoft'],
+ '3': ['adobe', 'amazon', 'bloomberg', 'yelp'],
+ '4': ['adobe', 'apple', 'dropbox', 'google', 'microsoft', 'yahoo', 'zenefits'],
+ '5': ['amazon', 'bloomberg', 'microsoft'],
+ '7': ['apple', 'bloomberg'],
+ '8': ['amazon', 'bloomberg', 'microsoft', 'uber'],
+
+ '10': ['airbnb', 'facebook', 'google', 'twitter', 'uber'],
+ '11': ['bloomberg'],
+ '12': ['twitter'],
+ '13': ['bloomberg', 'facebook', 'microsoft', 'uber', 'yahoo'],
+ '14': ['yelp'],
+ '15': ['adobe', 'amazon', 'bloomberg', 'facebook', 'microsoft'],
+ '16': ['bloomberg'],
+ '17': ['amazon', 'dropbox', 'facebook', 'google', 'uber'],
+ '18': ['linkedin'],
+ '20': ['airbnb', 'amazon', 'bloomberg', 'facebook', 'google', 'microsoft', 'twitter', 'zenefits'],
+ '21': ['amazon', 'apple', 'linkedin', 'microsoft'],
+ '22': ['google', 'uber', 'zenefits'],
+ '23': ['airbnb', 'amazon', 'facebook', 'google', 'linkedin', 'microsoft', 'twitter', 'uber'],
+ '24': ['bloomberg', 'microsoft', 'uber'],
+ '25': ['facebook', 'microsoft'],
+ '26': ['bloomberg', 'facebook', 'microsoft'],
+ '28': ['apple', 'facebook', 'microsoft', 'pocketgems'],
+ '31': ['google'],
+ '33': ['bloomberg', 'facebook', 'linkedin', 'microsoft', 'uber'],
+ '34': ['linkedin'],
+ '36': ['apple', 'snapchat', 'uber'],
+ '37': ['snapchat', 'uber'],
+ '38': ['facebook'],
+ '39': ['snapchat', 'uber'],
+ '40': ['snapchat'],
+ '42': ['amazon', 'apple', 'bloomberg', 'google', 'twitter', 'zenefits'],
+ '43': ['facebook', 'twitter'],
+ '44': ['facebook', 'google', 'snapchat', 'twitter', 'twosigma'],
+ '46': ['linkedin', 'microsoft'],
+ '47': ['linkedin', 'microsoft'],
+ '48': ['amazon', 'apple', 'microsoft'],
+ '49': ['amazon', 'bloomberg', 'facebook', 'uber', 'yelp'],
+ '50': ['bloomberg', 'facebook', 'google', 'linkedin'],
+ '52': ['zenefits'],
+ '53': ['bloomberg', 'linkedin', 'microsoft'],
+ '54': ['google', 'microsoft', 'uber'],
+ '55': ['microsoft'],
+ '56': ['bloomberg', 'facebook', 'google', 'linkedin', 'microsoft', 'twitter', 'yelp'],
+ '57': ['facebook', 'google', 'linkedin'],
+ '60': ['twitter'],
+ '62': ['bloomberg'],
+ '63': ['bloomberg'],
+ '65': ['linkedin'],
+ '66': ['google'],
+ '67': ['facebook'],
+ '68': ['airbnb', 'facebook', 'linkedin'],
+ '69': ['apple', 'bloomberg', 'facebook'],
+ '70': ['adobe', 'apple'],
+ '71': ['facebook', 'microsoft'],
+ '73': ['amazon', 'microsoft'],
+ '75': ['facebook', 'microsoft', 'pocketgems'],
+ '76': ['facebook', 'linkedin', 'snapchat', 'uber'],
+ '78': ['amazon', 'bloomberg', 'facebook', 'uber'],
+ '79': ['bloomberg', 'facebook', 'microsoft'],
+ '80': ['facebook'],
+ '85': ['facebook'],
+ '88': ['bloomberg', 'facebook', 'microsoft'],
+ '89': ['amazon'],
+ '90': ['facebook'],
+ '91': ['facebook', 'microsoft', 'uber'],
+ '94': ['microsoft'],
+ '96': ['snapchat'],
+ '98': ['amazon', 'bloomberg', 'facebook', 'microsoft'],
+
+ '100': ['bloomberg'],
+ '101': ['bloomberg', 'linkedin', 'microsoft'],
+ '102': ['amazon', 'apple', 'bloomberg', 'facebook', 'linkedin', 'microsoft'],
+ '103': ['bloomberg', 'linkedin', 'microsoft'],
+ '104': ['apple', 'linkedin', 'uber', 'yahoo'],
+ '105': ['bloomberg'],
+ '106': ['microsoft'],
+ '108': ['airbnb'],
+ '109': ['zenefits'],
+ '110': ['bloomberg'],
+ '112': ['microsoft'],
+ '113': ['bloomberg'],
+ '114': ['microsoft'],
+ '116': ['microsoft'],
+ '117': ['bloomberg', 'facebook', 'microsoft'],
+ '118': ['apple', 'twitter'],
+ '119': ['amazon'],
+ '121': ['amazon', 'bloomberg', 'facebook', 'microsoft', 'uber'],
+ '122': ['bloomberg'],
+ '124': ['baidu', 'microsoft'],
+ '125': ['facebook', 'microsoft', 'uber', 'zenefits'],
+ '126': ['amazon', 'yelp'],
+ '127': ['amazon', 'facebook', 'linkedin', 'snapchat', 'yelp'],
+ '128': ['facebook', 'google'],
+ '131': ['bloomberg'],
+ '133': ['facebook', 'google', 'pocketgems', 'uber'],
+ '136': ['airbnb', 'palantir'],
+ '138': ['amazon', 'bloomberg', 'microsoft', 'uber'],
+ '139': ['amazon', 'bloomberg', 'facebook', 'google', 'pocketgems', 'uber', 'yahoo'],
+ '140': ['dropbox', 'google', 'snapchat', 'twitter', 'uber'],
+ '141': ['amazon', 'bloomberg', 'microsoft', 'yahoo'],
+ '146': ['amazon', 'bloomberg', 'facebook', 'google', 'microsoft', 'palantir', 'snapchat', 'twitter', 'uber', 'yahoo', 'zenefits'],
+ '149': ['apple', 'linkedin', 'twitter'],
+ '150': ['linkedin'],
+ '151': ['apple', 'bloomberg', 'microsoft', 'snapchat', 'yelp'],
+ '152': ['linkedin'],
+ '153': ['microsoft'],
+ '155': ['amazon', 'bloomberg', 'google', 'snapchat', 'uber', 'zenefits'],
+ '156': ['linkedin'],
+ '157': ['facebook'],
+ '158': ['bloomberg', 'facebook', 'google'],
+ '159': ['google'],
+ '160': ['airbnb', 'amazon', 'bloomberg', 'microsoft'],
+ '161': ['facebook', 'snapchat', 'twitter', 'uber'],
+ '162': ['google', 'microsoft'],
+ '163': ['google'],
+ '165': ['apple', 'microsoft'],
+ '166': ['google'],
+ '167': ['amazon'],
+ '168': ['facebook', 'microsoft', 'zenefits'],
+ '169': ['adobe', 'zenefits'],
+ '170': ['linkedin'],
+ '171': ['microsoft', 'uber'],
+ '172': ['bloomberg'],
+ '173': ['facebook', 'google', 'linkedin', 'microsoft'],
+ '174': ['microsoft'],
+ '186': ['amazon', 'microsoft', 'uber'],
+ '187': ['linkedin'],
+ '189': ['amazon', 'bloomberg', 'microsoft'],
+ '190': ['airbnb', 'apple'],
+ '191': ['apple', 'microsoft'],
+ '195': ['adobe'],
+ '198': ['airbnb', 'linkedin'],
+ '199': ['amazon'],
+ '200': ['amazon', 'facebook', 'google', 'microsoft', 'zenefits'],
+ '202': ['airbnb', 'twitter', 'uber'],
+ '204': ['amazon', 'microsoft'],
+ '205': ['linkedin'],
+ '206': ['adobe', 'amazon', 'apple', 'bloomberg', 'facebook', 'microsoft', 'snapchat', 'twitter', 'uber', 'yahoo', 'yelp', 'zenefits'],
+ '207': ['apple', 'uber', 'yelp', 'zenefits'],
+ '208': ['bloomberg', 'facebook', 'google', 'microsoft', 'twitter', 'uber'],
+ '209': ['facebook'],
+ '210': ['facebook', 'zenefits'],
+ '211': ['facebook'],
+ '212': ['airbnb', 'google', 'microsoft'],
+ '213': ['microsoft'],
+ '214': ['google', 'pocketgems'],
+ '215': ['amazon', 'apple', 'bloomberg', 'facebook', 'microsoft', 'pocketgems'],
+ '217': ['airbnb', 'palantir', 'yahoo'],
+ '218': ['facebook', 'google', 'microsoft', 'twitter', 'yelp'],
+ '219': ['airbnb', 'palantir'],
+ '220': ['airbnb', 'palantir'],
+ '221': ['airbnb', 'apple', 'facebook'],
+ '224': ['google'],
+ '225': ['bloomberg'],
+ '227': ['airbnb'],
+ '228': ['google'],
+ '229': ['zenefits'],
+ '230': ['bloomberg', 'google', 'uber'],
+ '231': ['google'],
+ '232': ['bloomberg', 'microsoft'],
+ '234': ['amazon', 'facebook'],
+ '235': ['amazon', 'facebook', 'microsoft', 'twitter'],
+ '236': ['amazon', 'apple', 'facebook', 'linkedin', 'microsoft'],
+ '237': ['adobe', 'apple', 'microsoft'],
+ '238': ['amazon', 'apple', 'facebook', 'linkedin', 'microsoft'],
+ '239': ['amazon', 'google', 'zenefits'],
+ '240': ['amazon', 'apple', 'google'],
+ '242': ['amazon', 'uber', 'yelp'],
+ '243': ['linkedin'],
+ '244': ['linkedin'],
+ '245': ['linkedin'],
+ '246': ['google'],
+ '247': ['google'],
+ '249': ['google', 'uber'],
+ '251': ['airbnb', 'google', 'twitter', 'zenefits'],
+ '252': ['facebook'],
+ '253': ['facebook', 'google', 'snapchat'],
+ '254': ['linkedin', 'uber'],
+ '255': ['zenefits'],
+ '256': ['linkedin'],
+ '257': ['apple', 'facebook', 'google'],
+ '258': ['adobe', 'microsoft'],
+ '259': ['google'],
+ '261': ['facebook', 'google', 'zenefits'],
+ '262': ['uber'],
+ '265': ['facebook'],
+ '266': ['bloomberg', 'google', 'uber'],
+ '268': ['bloomberg', 'microsoft'],
+ '269': ['airbnb', 'facebook', 'google', 'pocketgems', 'snapchat', 'twitter'],
+ '270': ['google', 'microsoft', 'snapchat'],
+ '271': ['google'],
+ '272': ['google'],
+ '273': ['facebook', 'microsoft'],
+ '274': ['bloomberg', 'facebook', 'google'],
+ '275': ['facebook'],
+ '276': ['google'],
+ '277': ['facebook', 'linkedin'],
+ '278': ['facebook'],
+ '279': ['google'],
+ '280': ['google'],
+ '281': ['google'],
+ '282': ['facebook', 'google'],
+ '283': ['bloomberg', 'facebook'],
+ '284': ['apple', 'google', 'yahoo'],
+ '285': ['facebook', 'microsoft', 'pocketgems'],
+ '286': ['facebook', 'google'],
+ '287': ['bloomberg'],
+ '288': ['google'],
+ '289': ['dropbox', 'google', 'snapchat', 'twosigma'],
+ '290': ['dropbox', 'uber'],
+ '291': ['dropbox', 'uber'],
+ '292': ['adobe'],
+ '293': ['google'],
+ '294': ['google'],
+ '295': ['google'],
+ '296': ['twitter'],
+ '297': ['amazon', 'bloomberg', 'facebook', 'google', 'linkedin', 'microsoft', 'uber', 'yahoo'],
+ '298': ['google'],
+ '300': ['microsoft'],
+ '301': ['facebook'],
+ '302': ['google'],
+ '303': ['palantir'],
+ '305': ['google'],
+ '308': ['google'],
+ '309': ['google'],
+ '310': ['google'],
+ '311': ['facebook', 'linkedin'],
+ '312': ['google', 'snapchat'],
+ '313': ['google'],
+ '314': ['facebook', 'google', 'snapchat'],
+ '315': ['google'],
+ '316': ['google'],
+ '317': ['google', 'zenefits'],
+ '318': ['google'],
+ '320': ['google'],
+ '321': ['google'],
+ '323': ['google', 'twitter'],
+ '324': ['google'],
+ '325': ['facebook', 'palantir'],
+ '326': ['google'],
+ '327': ['google'],
+ '329': ['google'],
+ '330': ['google'],
+ '331': ['google'],
+ '332': ['google'],
+ '333': ['microsoft'],
+ '334': ['facebook'],
+ '336': ['airbnb', 'google'],
+ '337': ['uber'],
+ '339': ['linkedin'],
+ '340': ['google'],
+ '341': ['facebook', 'google', 'twitter'],
+ '342': ['twosigma'],
+ '345': ['google'],
+ '346': ['google'],
+ '347': ['pocketgems', 'yelp'],
+ '348': ['google', 'microsoft'],
+ '349': ['twosigma'],
+ '351': ['google'],
+ '353': ['google'],
+ '354': ['google'],
+ '355': ['amazon', 'twitter'],
+ '356': ['google'],
+ '357': ['google'],
+ '358': ['google'],
+ '359': ['google'],
+ '360': ['google'],
+ '361': ['google'],
+ '362': ['dropbox', 'google'],
+ '363': ['google'],
+ '364': ['linkedin'],
+ '365': ['microsoft'],
+ '366': ['linkedin'],
+ '367': ['linkedin'],
+ '368': ['google'],
+ '369': ['google'],
+ '370': ['google'],
+ '373': ['google', 'uber'],
+ '374': ['google'],
+ '375': ['google'],
+ '377': ['facebook', 'google', 'snapchat'],
+ '378': ['google', 'twitter'],
+ '379': ['google'],
+ '380': ['amazon', 'facebook', 'google', 'pocketgems', 'twitter', 'uber', 'yelp'],
+ '381': ['yelp'],
+ '382': ['google'],
+ '383': ['apple'],
+ '385': ['airbnb'],
+ '386': ['bloomberg'],
+ '387': ['amazon', 'bloomberg', 'microsoft'],
+ '388': ['google'],
+ '389': ['google'],
+ '391': ['google'],
+ '393': ['google'],
+ '394': ['google', 'yelp'],
+ '395': ['baidu'],
+ '396': ['amazon'],
+ '397': ['baidu', 'google'],
+ '398': ['facebook'],
+ '399': ['google'],
+ '400': ['google'],
+ '401': ['google'],
+ '402': ['google', 'snapchat'],
+ '403': ['snapchat'],
+ '404': ['facebook'],
+ '406': ['google'],
+ '407': ['google', 'twitter'],
+ '408': ['google'],
+ '409': ['google'],
+ '410': ['baidu', 'facebook'],
+ '411': ['google'],
+ '413': ['baidu'],
+ '414': ['amazon'],
+ '415': ['airbnb', 'google'],
+ '416': ['ebay'],
+ '417': ['google'],
+ '418': ['google'],
+ '419': ['microsoft'],
+ '421': ['google'],
+ '422': ['google'],
+ '424': ['pocketgems'],
+ '425': ['google'],
+ '432': ['uber'],
+ '433': ['twitter'],
+ '438': ['amazon'],
+ '439': ['snapchat'],
+ '442': ['pocketgems'],
+ '443': ['bloomberg', 'microsoft', 'snapchat', 'yelp'],
+ '444': ['google'],
+ '445': ['bloomberg', 'microsoft'],
+ '446': ['baidu'],
+ '447': ['google'],
+ '448': ['google'],
+ '449': ['amazon'],
+ '450': ['uber'],
+ '451': ['amazon', 'google'],
+ '452': ['microsoft'],
+ '453': ['indeed'],
+ '459': ['amazon', 'google'],
+ '460': ['amazon', 'google'],
+ '461': ['facebook'],
+ '463': ['google'],
+ '464': ['linkedin'],
+ '465': ['google'],
+ '468': ['twitter'],
+ '469': ['google'],
+ '471': ['google'],
+ '474': ['google'],
+ '475': ['google'],
+ '477': ['facebook'],
+ '479': ['yahoo'],
+ '480': ['google'],
+ '481': ['google'],
+ '482': ['google'],
+ '483': ['google'],
+ '484': ['google'],
+ '485': ['google'],
+ '486': ['google'],
+ '487': ['google'],
+ '488': ['baidu'],
+ '490': ['google'],
+ '491': ['yahoo'],
+ '493': ['google'],
+ '494': ['facebook', 'google'],
+ '498': ['google'],
+ '500': ['mathworks'],
+ '501': ['google'],
+ '503': ['google'],
+ '505': ['google'],
+ '506': ['google'],
+ '508': ['amazon'],
+ '513': ['microsoft'],
+ '514': ['google'],
+ '515': ['linkedin'],
+ '516': ['amazon', 'uber'],
+ '517': ['amazon'],
+ '520': ['google'],
+ '521': ['google'],
+ '522': ['google'],
+ '523': ['facebook'],
+ '524': ['google'],
+ '525': ['facebook'],
+ '526': ['google'],
+ '527': ['google', 'snapchat'],
+ '529': ['amazon'],
+ '530': ['google'],
+ '531': ['google'],
+ '532': ['amazon'],
+ '533': ['google'],
+ '534': ['amazon', 'facebook', 'google', 'uber'],
+ '535': ['amazon', 'facebook', 'google', 'uber'],
+ '536': ['amazon'],
+ '537': ['amazon'],
+ '538': ['amazon'],
+ '541': ['google'],
+ '542': ['google'],
+ '543': ['facebook', 'google'],
+ '544': ['google'],
+ '545': ['amazon', 'google'],
+ '547': ['bloomberg', 'twosigma'],
+ '548': ['alibaba'],
+ '549': ['google'],
+ '551': ['google'],
+ '552': ['google'],
+ '553': ['amazon'],
+ '554': ['facebook'],
+ '555': ['alibaba'],
+ '556': ['bloomberg'],
+ '557': ['zappos'],
+ '560': ['google'],
+ '562': ['google'],
+ '563': ['indeed'],
+ '564': ['yelp'],
+ '566': ['mathworks'],
+ '567': ['microsoft'],
+ '568': ['google'],
+ '569': ['google'],
+ '570': ['bloomberg'],
+ '572': ['ebay', 'facebook', 'google'],
+ '576': ['baidu'],
+ '578': ['facebook'],
+ '579': ['amazon'],
+ '580': ['twitter'],
+ '581': ['google'],
+ '582': ['bloomberg'],
+ '583': ['google'],
+ '585': ['twitter'],
+ '586': ['twitter'],
+ '587': ['google'],
+ '591': ['microsoft'],
+ '597': ['facebook'],
+ '599': ['yelp'],
+ '602': ['facebook'],
+ '604': ['google'],
+ '605': ['linkedin'],
+ '606': ['amazon'],
+ '608': ['twitter'],
+ '616': ['google'],
+ '617': ['amazon'],
+ '621': ['facebook'],
+ '631': ['microsoft'],
+ '633': ['linkedin'],
+ '635': ['snapchat'],
+ '636': ['facebook', 'uber'],
+ '637': ['facebook'],
+ '638': ['google'],
+ '639': ['facebook'],
+ '640': ['amazon'],
+ '642': ['facebook', 'microsoft'],
+ '643': ['google'],
+ '644': ['google'],
+ '645': ['amazon'],
+ '646': ['amazon'],
+ '647': ['facebook', 'linkedin'],
+ '648': ['uber'],
+ '650': ['microsoft'],
+ '651': ['google', 'microsoft'],
+ '652': ['google'],
+ '653': ['facebook'],
+ '654': ['microsoft'],
+ '656': ['google'],
+ '657': ['google'],
+ '658': ['google'],
+ '659': ['google'],
+ '661': ['amazon'],
+ '662': ['amazon'],
+ '663': ['amazon'],
+ '665': ['google'],
+ '667': ['google'],
+ '668': ['google'],
+ '669': ['bloomberg'],
+ '670': ['facebook'],
+ '671': ['linkedin'],
+ '672': ['microsoft'],
+ '673': ['facebook'],
+ '674': ['facebook'],
+ '675': ['amazon'],
+ '676': ['google'],
+ '679': ['google'],
+ '680': ['facebook'],
+ '681': ['google'],
+ '682': ['amazon'],
+ '683': ['google'],
+ '684': ['google'],
+ '685': ['google'],
+ '686': ['google'],
+ '687': ['google'],
+ '689': ['facebook', 'google'],
+ '690': ['uber'],
+ '692': ['amazon', 'bloomberg', 'uber', 'yelp'],
+ '694': ['amazon'],
+ '698': ['linkedin'],
+ '699': ['uber'],
+ '711': ['amazon'],
+ '714': ['bloomberg', 'facebook'],
+ '716': ['linkedin'],
+ '719': ['google'],
+ '721': ['facebook'],
+ '722': ['microsoft'],
+ '725': ['amazon'],
+ '726': ['google'],
+ '727': ['google'],
+ '729': ['google'],
+ '730': ['linkedin'],
+ '731': ['google']
+};
+
+var TAGS = {
+ '1': ['array', 'hash-table'],
+ '2': ['linked-list', 'math'],
+ '3': ['hash-table', 'string', 'two-pointers'],
+ '4': ['array', 'binary-search', 'divide-and-conquer'],
+ '5': ['string'],
+ '6': ['string'],
+ '7': ['math'],
+ '8': ['math', 'string'],
+ '9': ['math'],
+
+ '10': ['backtracking', 'dynamic-programming', 'string'],
+ '11': ['array', 'two-pointers'],
+ '12': ['math', 'string'],
+ '13': ['math', 'string'],
+ '14': ['string'],
+ '15': ['array', 'two-pointers'],
+ '16': ['array', 'two-pointers'],
+ '17': ['backtracking', 'string'],
+ '18': ['array', 'hash-table', 'two-pointers'],
+ '19': ['linked-list', 'two-pointers'],
+ '20': ['stack', 'string'],
+ '21': ['linked-list'],
+ '22': ['backtracking', 'string'],
+ '23': ['divide-and-conquer', 'heap', 'linked-list'],
+ '24': ['linked-list'],
+ '25': ['linked-list'],
+ '26': ['array', 'two-pointers'],
+ '27': ['array', 'two-pointers'],
+ '28': ['string', 'two-pointers'],
+ '29': ['binary-search', 'math'],
+ '30': ['hash-table', 'string', 'two-pointers'],
+ '31': ['array'],
+ '32': ['dynamic-programming', 'string'],
+ '33': ['array', 'binary-search'],
+ '34': ['array', 'binary-search'],
+ '35': ['array', 'binary-search'],
+ '36': ['hash-table'],
+ '37': ['backtracking', 'hash-table'],
+ '38': ['string'],
+ '39': ['array', 'backtracking'],
+ '40': ['array', 'backtracking'],
+ '41': ['array'],
+ '42': ['array', 'stack', 'two-pointers'],
+ '43': ['math', 'string'],
+ '44': ['backtracking', 'dynamic-programming', 'greedy', 'string'],
+ '45': ['array', 'greedy'],
+ '46': ['backtracking'],
+ '47': ['backtracking'],
+ '48': ['array'],
+ '49': ['hash-table', 'string'],
+ '50': ['binary-search', 'math'],
+ '51': ['backtracking'],
+ '52': ['backtracking'],
+ '53': ['array', 'divide-and-conquer', 'dynamic-programming'],
+ '54': ['array'],
+ '55': ['array', 'greedy'],
+ '56': ['array', 'sort'],
+ '57': ['array', 'sort'],
+ '58': ['string'],
+ '59': ['array'],
+ '60': ['backtracking', 'math'],
+ '61': ['linked-list', 'two-pointers'],
+ '62': ['array', 'dynamic-programming'],
+ '63': ['array', 'dynamic-programming'],
+ '64': ['array', 'dynamic-programming'],
+ '65': ['math', 'string'],
+ '66': ['array', 'math'],
+ '67': ['math', 'string'],
+ '68': ['string'],
+ '69': ['binary-search', 'math'],
+ '70': ['dynamic-programming'],
+ '71': ['stack', 'string'],
+ '72': ['dynamic-programming', 'string'],
+ '73': ['array'],
+ '74': ['array', 'binary-search'],
+ '75': ['array', 'sort', 'two-pointers'],
+ '76': ['hash-table', 'string', 'two-pointers'],
+ '77': ['backtracking'],
+ '78': ['array', 'backtracking', 'bit-manipulation'],
+ '79': ['array', 'backtracking'],
+ '80': ['array', 'two-pointers'],
+ '81': ['array', 'binary-search'],
+ '82': ['linked-list'],
+ '83': ['linked-list'],
+ '84': ['array', 'stack'],
+ '85': ['array', 'dynamic-programming', 'hash-table', 'stack'],
+ '86': ['linked-list', 'two-pointers'],
+ '87': ['dynamic-programming', 'string'],
+ '88': ['array', 'two-pointers'],
+ '89': ['backtracking'],
+ '90': ['array', 'backtracking'],
+ '91': ['dynamic-programming', 'string'],
+ '92': ['linked-list'],
+ '93': ['backtracking', 'string'],
+ '94': ['hash-table', 'stack', 'tree'],
+ '95': ['dynamic-programming', 'tree'],
+ '96': ['dynamic-programming', 'tree'],
+ '97': ['dynamic-programming', 'string'],
+ '98': ['depth-first-search', 'tree'],
+ '99': ['depth-first-search', 'tree'],
+
+ '100': ['depth-first-search', 'tree'],
+ '101': ['breadth-first-search', 'depth-first-search', 'tree'],
+ '102': ['breadth-first-search', 'tree'],
+ '103': ['breadth-first-search', 'stack', 'tree'],
+ '104': ['depth-first-search', 'tree'],
+ '105': ['array', 'depth-first-search', 'tree'],
+ '106': ['array', 'depth-first-search', 'tree'],
+ '107': ['breadth-first-search', 'tree'],
+ '108': ['depth-first-search', 'tree'],
+ '109': ['depth-first-search', 'linked-list'],
+ '110': ['depth-first-search', 'tree'],
+ '111': ['breadth-first-search', 'depth-first-search', 'tree'],
+ '112': ['depth-first-search', 'tree'],
+ '113': ['depth-first-search', 'tree'],
+ '114': ['depth-first-search', 'tree'],
+ '115': ['dynamic-programming', 'string'],
+ '116': ['depth-first-search', 'tree'],
+ '117': ['depth-first-search', 'tree'],
+ '118': ['array'],
+ '119': ['array'],
+ '120': ['array', 'dynamic-programming'],
+ '121': ['array', 'dynamic-programming'],
+ '122': ['array', 'greedy'],
+ '123': ['array', 'dynamic-programming'],
+ '124': ['depth-first-search', 'tree'],
+ '125': ['string', 'two-pointers'],
+ '126': ['array', 'backtracking', 'breadth-first-search', 'string'],
+ '127': ['breadth-first-search'],
+ '128': ['array', 'union-find'],
+ '129': ['depth-first-search', 'tree'],
+ '130': ['breadth-first-search', 'depth-first-search', 'union-find'],
+ '131': ['backtracking'],
+ '132': ['dynamic-programming'],
+ '133': ['breadth-first-search', 'depth-first-search', 'graph'],
+ '134': ['greedy'],
+ '135': ['greedy'],
+ '136': ['bit-manipulation', 'hash-table'],
+ '137': ['bit-manipulation'],
+ '138': ['hash-table', 'linked-list'],
+ '139': ['dynamic-programming'],
+ '140': ['backtracking', 'dynamic-programming'],
+ '141': ['linked-list', 'two-pointers'],
+ '142': ['linked-list', 'two-pointers'],
+ '143': ['linked-list'],
+ '144': ['stack', 'tree'],
+ '145': ['stack', 'tree'],
+ '146': ['design'],
+ '147': ['linked-list', 'sort'],
+ '148': ['linked-list', 'sort'],
+ '149': ['hash-table', 'math'],
+ '150': ['stack'],
+ '151': ['string'],
+ '152': ['array', 'dynamic-programming'],
+ '153': ['array', 'binary-search'],
+ '154': ['array', 'binary-search'],
+ '155': ['design', 'stack'],
+ '156': ['tree'],
+ '157': ['string'],
+ '158': ['string'],
+ '159': ['hash-table', 'string', 'two-pointers'],
+ '160': ['linked-list'],
+ '161': ['string'],
+ '162': ['array', 'binary-search'],
+ '163': ['array'],
+ '164': ['sort'],
+ '165': ['string'],
+ '166': ['hash-table', 'math'],
+ '167': ['array', 'binary-search', 'two-pointers'],
+ '168': ['math'],
+ '169': ['array', 'bit-manipulation', 'divide-and-conquer'],
+ '170': ['design', 'hash-table'],
+ '171': ['math'],
+ '172': ['math'],
+ '173': ['design', 'stack', 'tree'],
+ '174': ['binary-search', 'dynamic-programming'],
+ '179': ['sort'],
+ '186': ['string'],
+ '187': ['bit-manipulation', 'hash-table'],
+ '188': ['dynamic-programming'],
+ '189': ['array'],
+ '190': ['bit-manipulation'],
+ '191': ['bit-manipulation'],
+ '198': ['dynamic-programming'],
+ '199': ['breadth-first-search', 'depth-first-search', 'tree'],
+ '200': ['breadth-first-search', 'depth-first-search', 'union-find'],
+ '201': ['bit-manipulation'],
+ '202': ['hash-table', 'math'],
+ '203': ['linked-list'],
+ '204': ['hash-table', 'math'],
+ '205': ['hash-table'],
+ '206': ['linked-list'],
+ '207': ['breadth-first-search', 'depth-first-search', 'graph', 'topological-sort'],
+ '208': ['design', 'trie'],
+ '209': ['array', 'binary-search', 'two-pointers'],
+ '210': ['breadth-first-search', 'depth-first-search', 'graph', 'topological-sort'],
+ '211': ['backtracking', 'design', 'trie'],
+ '212': ['backtracking', 'trie'],
+ '213': ['dynamic-programming'],
+ '214': ['string'],
+ '215': ['divide-and-conquer', 'heap'],
+ '216': ['array', 'backtracking'],
+ '217': ['array', 'hash-table'],
+ '218': ['binary-indexed-tree', 'divide-and-conquer', 'heap', 'segment-tree'],
+ '219': ['array', 'hash-table'],
+ '220': ['binary-search-tree'],
+ '221': ['dynamic-programming'],
+ '222': ['binary-search', 'tree'],
+ '223': ['math'],
+ '224': ['math', 'stack'],
+ '225': ['design', 'stack'],
+ '226': ['tree'],
+ '227': ['string'],
+ '228': ['array'],
+ '229': ['array'],
+ '230': ['binary-search', 'tree'],
+ '231': ['bit-manipulation', 'math'],
+ '232': ['design', 'stack'],
+ '233': ['math'],
+ '234': ['linked-list', 'two-pointers'],
+ '235': ['tree'],
+ '236': ['tree'],
+ '237': ['linked-list'],
+ '238': ['array'],
+ '239': ['heap'],
+ '240': ['binary-search', 'divide-and-conquer'],
+ '241': ['divide-and-conquer'],
+ '242': ['hash-table', 'sort'],
+ '243': ['array'],
+ '244': ['design', 'hash-table'],
+ '245': ['array'],
+ '246': ['hash-table', 'math'],
+ '247': ['math'],
+ '248': ['math'],
+ '249': ['hash-table', 'string'],
+ '250': ['tree'],
+ '251': ['design'],
+ '252': ['sort'],
+ '253': ['greedy', 'heap', 'sort'],
+ '254': ['backtracking'],
+ '255': ['stack', 'tree'],
+ '256': ['dynamic-programming'],
+ '257': ['depth-first-search', 'tree'],
+ '258': ['math'],
+ '259': ['array', 'two-pointers'],
+ '260': ['bit-manipulation'],
+ '261': ['breadth-first-search', 'depth-first-search', 'graph', 'union-find'],
+ '263': ['math'],
+ '264': ['dynamic-programming', 'heap', 'math'],
+ '265': ['dynamic-programming'],
+ '266': ['hash-table'],
+ '267': ['backtracking'],
+ '268': ['array', 'bit-manipulation', 'math'],
+ '269': ['graph', 'topological-sort'],
+ '270': ['binary-search', 'tree'],
+ '271': ['string'],
+ '272': ['stack', 'tree'],
+ '273': ['math', 'string'],
+ '274': ['hash-table', 'sort'],
+ '275': ['binary-search'],
+ '276': ['dynamic-programming'],
+ '277': ['array'],
+ '278': ['binary-search'],
+ '279': ['breadth-first-search', 'dynamic-programming', 'math'],
+ '280': ['array', 'sort'],
+ '281': ['design'],
+ '282': ['divide-and-conquer'],
+ '283': ['array', 'two-pointers'],
+ '284': ['design'],
+ '285': ['tree'],
+ '286': ['breadth-first-search'],
+ '287': ['array', 'binary-search', 'two-pointers'],
+ '288': ['design', 'hash-table'],
+ '289': ['array'],
+ '290': ['hash-table'],
+ '291': ['backtracking'],
+ '293': ['string'],
+ '294': ['backtracking'],
+ '295': ['design', 'heap'],
+ '296': ['math', 'sort'],
+ '297': ['design', 'tree'],
+ '298': ['tree'],
+ '299': ['hash-table'],
+ '300': ['binary-search', 'dynamic-programming'],
+ '301': ['breadth-first-search', 'depth-first-search'],
+ '302': ['binary-search'],
+ '303': ['dynamic-programming'],
+ '304': ['dynamic-programming'],
+ '305': ['union-find'],
+ '307': ['binary-indexed-tree', 'segment-tree'],
+ '308': ['binary-indexed-tree', 'segment-tree'],
+ '309': ['dynamic-programming'],
+ '310': ['breadth-first-search', 'graph'],
+ '311': ['hash-table'],
+ '312': ['divide-and-conquer', 'dynamic-programming'],
+ '313': ['heap', 'math'],
+ '314': ['hash-table'],
+ '315': ['binary-indexed-tree', 'divide-and-conquer', 'segment-tree', 'binary-search-tree'],
+ '316': ['greedy', 'stack'],
+ '317': ['breadth-first-search'],
+ '318': ['bit-manipulation'],
+ '319': ['math'],
+ '320': ['backtracking', 'bit-manipulation'],
+ '321': ['dynamic-programming', 'greedy'],
+ '322': ['dynamic-programming'],
+ '323': ['breadth-first-search', 'depth-first-search', 'graph', 'union-find'],
+ '324': ['sort'],
+ '325': ['hash-table'],
+ '326': ['math'],
+ '327': ['divide-and-conquer', 'binary-search-tree'],
+ '328': ['linked-list'],
+ '329': ['depth-first-search', 'topological-sort'],
+ '330': ['greedy'],
+ '331': ['stack'],
+ '332': ['depth-first-search', 'graph'],
+ '333': ['tree'],
+ '335': ['math'],
+ '336': ['hash-table', 'string', 'trie'],
+ '337': ['depth-first-search', 'tree'],
+ '338': ['bit-manipulation', 'dynamic-programming'],
+ '339': ['depth-first-search'],
+ '340': ['hash-table', 'string'],
+ '341': ['design', 'stack'],
+ '342': ['bit-manipulation'],
+ '343': ['dynamic-programming', 'math'],
+ '344': ['string', 'two-pointers'],
+ '345': ['string', 'two-pointers'],
+ '346': ['design', 'queue'],
+ '347': ['hash-table', 'heap'],
+ '348': ['design'],
+ '349': ['binary-search', 'hash-table', 'sort', 'two-pointers'],
+ '350': ['binary-search', 'hash-table', 'sort', 'two-pointers'],
+ '351': ['backtracking', 'dynamic-programming'],
+ '352': ['binary-search-tree'],
+ '353': ['design', 'queue'],
+ '354': ['binary-search', 'dynamic-programming'],
+ '355': ['design', 'hash-table', 'heap'],
+ '356': ['hash-table', 'math'],
+ '357': ['backtracking', 'dynamic-programming', 'math'],
+ '358': ['greedy', 'hash-table', 'heap'],
+ '359': ['design', 'hash-table'],
+ '360': ['math', 'two-pointers'],
+ '361': ['dynamic-programming'],
+ '362': ['design'],
+ '363': ['binary-search', 'dynamic-programming', 'queue'],
+ '364': ['depth-first-search'],
+ '365': ['math'],
+ '366': ['depth-first-search', 'tree'],
+ '367': ['binary-search', 'math'],
+ '368': ['dynamic-programming', 'math'],
+ '369': ['linked-list'],
+ '370': ['array'],
+ '371': ['bit-manipulation'],
+ '372': ['math'],
+ '373': ['heap'],
+ '374': ['binary-search'],
+ '375': ['dynamic-programming'],
+ '376': ['dynamic-programming', 'greedy'],
+ '377': ['dynamic-programming'],
+ '378': ['binary-search', 'heap'],
+ '379': ['design', 'linked-list'],
+ '380': ['array', 'design', 'hash-table'],
+ '381': ['array', 'design', 'hash-table'],
+ '382': ['reservoir-sampling'],
+ '383': ['string'],
+ '385': ['stack', 'string'],
+ '387': ['hash-table', 'string'],
+ '389': ['bit-manipulation', 'hash-table'],
+ '392': ['binary-search', 'dynamic-programming', 'greedy'],
+ '393': ['bit-manipulation'],
+ '394': ['depth-first-search', 'stack'],
+ '396': ['math'],
+ '397': ['bit-manipulation', 'math'],
+ '398': ['reservoir-sampling'],
+ '399': ['graph'],
+ '400': ['math'],
+ '401': ['backtracking', 'bit-manipulation'],
+ '402': ['greedy', 'stack'],
+ '403': ['dynamic-programming'],
+ '404': ['tree'],
+ '405': ['bit-manipulation'],
+ '406': ['greedy'],
+ '407': ['breadth-first-search', 'heap'],
+ '408': ['string'],
+ '409': ['hash-table'],
+ '410': ['binary-search', 'dynamic-programming'],
+ '411': ['backtracking', 'bit-manipulation'],
+ '413': ['dynamic-programming', 'math'],
+ '414': ['array'],
+ '415': ['math'],
+ '416': ['dynamic-programming'],
+ '417': ['breadth-first-search', 'depth-first-search'],
+ '418': ['dynamic-programming'],
+ '421': ['bit-manipulation', 'trie'],
+ '423': ['math'],
+ '425': ['backtracking', 'trie'],
+ '432': ['design'],
+ '434': ['string'],
+ '435': ['greedy'],
+ '436': ['binary-search'],
+ '437': ['tree'],
+ '438': ['hash-table'],
+ '439': ['depth-first-search', 'stack'],
+ '441': ['binary-search', 'math'],
+ '442': ['array'],
+ '443': ['string'],
+ '444': ['graph', 'topological-sort'],
+ '445': ['linked-list'],
+ '446': ['dynamic-programming'],
+ '447': ['hash-table'],
+ '448': ['array'],
+ '449': ['tree'],
+ '450': ['tree'],
+ '451': ['hash-table', 'heap'],
+ '452': ['greedy'],
+ '453': ['math'],
+ '454': ['binary-search', 'hash-table'],
+ '455': ['greedy'],
+ '456': ['stack'],
+ '459': ['string'],
+ '460': ['design'],
+ '461': ['bit-manipulation'],
+ '462': ['math'],
+ '463': ['hash-table'],
+ '464': ['dynamic-programming'],
+ '466': ['dynamic-programming'],
+ '467': ['dynamic-programming'],
+ '468': ['string'],
+ '469': ['math'],
+ '471': ['dynamic-programming'],
+ '472': ['depth-first-search', 'dynamic-programming', 'trie'],
+ '473': ['depth-first-search'],
+ '474': ['dynamic-programming'],
+ '475': ['binary-search'],
+ '476': ['bit-manipulation'],
+ '477': ['bit-manipulation'],
+ '483': ['binary-search', 'math'],
+ '484': ['greedy'],
+ '485': ['array'],
+ '486': ['dynamic-programming'],
+ '487': ['two-pointers'],
+ '488': ['depth-first-search'],
+ '490': ['breadth-first-search', 'depth-first-search'],
+ '491': ['depth-first-search'],
+ '493': ['binary-indexed-tree', 'divide-and-conquer', 'segment-tree', 'binary-search-tree'],
+ '494': ['depth-first-search', 'dynamic-programming'],
+ '495': ['array'],
+ '496': ['stack'],
+ '499': ['breadth-first-search', 'depth-first-search'],
+ '500': ['hash-table'],
+ '501': ['tree'],
+ '502': ['greedy', 'heap'],
+ '503': ['stack'],
+ '505': ['breadth-first-search', 'depth-first-search'],
+ '507': ['math'],
+ '508': ['hash-table', 'tree'],
+ '513': ['breadth-first-search', 'depth-first-search', 'tree'],
+ '514': ['depth-first-search', 'divide-and-conquer', 'dynamic-programming'],
+ '515': ['breadth-first-search', 'depth-first-search', 'tree'],
+ '516': ['dynamic-programming'],
+ '517': ['dynamic-programming', 'math'],
+ '520': ['string'],
+ '521': ['string'],
+ '522': ['string'],
+ '523': ['dynamic-programming', 'math'],
+ '524': ['sort', 'two-pointers'],
+ '525': ['hash-table'],
+ '526': ['backtracking'],
+ '527': ['sort', 'string'],
+ '529': ['breadth-first-search', 'depth-first-search'],
+ '530': ['array', 'depth-first-search', 'binary-search-tree'],
+ '531': ['array', 'depth-first-search'],
+ '532': ['array', 'two-pointers'],
+ '533': ['array', 'depth-first-search'],
+ '535': ['hash-table', 'math'],
+ '536': ['string', 'tree'],
+ '537': ['math', 'string'],
+ '538': ['tree'],
+ '539': ['string'],
+ '541': ['string'],
+ '542': ['breadth-first-search', 'depth-first-search'],
+ '543': ['tree'],
+ '544': ['string'],
+ '545': ['tree'],
+ '546': ['depth-first-search', 'dynamic-programming'],
+ '547': ['depth-first-search', 'union-find'],
+ '548': ['array'],
+ '549': ['tree'],
+ '551': ['string'],
+ '552': ['dynamic-programming'],
+ '553': ['math', 'string'],
+ '554': ['hash-table'],
+ '555': ['string'],
+ '556': ['string'],
+ '557': ['string'],
+ '560': ['array', 'map'],
+ '561': ['array'],
+ '562': ['array'],
+ '563': ['tree'],
+ '564': ['string'],
+ '565': ['array'],
+ '566': ['array'],
+ '567': ['two-pointers'],
+ '568': ['dynamic-programming'],
+ '572': ['tree'],
+ '573': ['math'],
+ '575': ['hash-table'],
+ '576': ['depth-first-search', 'dynamic-programming'],
+ '581': ['array'],
+ '582': ['queue', 'tree'],
+ '583': ['string'],
+ '588': ['design'],
+ '591': ['stack', 'string'],
+ '592': ['math'],
+ '593': ['math'],
+ '594': ['hash-table'],
+ '598': ['math'],
+ '599': ['hash-table'],
+ '600': ['dynamic-programming'],
+ '604': ['design'],
+ '605': ['array'],
+ '606': ['string', 'tree'],
+ '609': ['hash-table', 'string'],
+ '611': ['array'],
+ '616': ['string'],
+ '617': ['tree'],
+ '621': ['array', 'greedy', 'queue'],
+ '623': ['tree'],
+ '624': ['array', 'hash-table'],
+ '625': ['math'],
+ '628': ['array', 'math'],
+ '629': ['dynamic-programming'],
+ '630': ['greedy'],
+ '631': ['design'],
+ '632': ['hash-table', 'string', 'two-pointers'],
+ '633': ['math'],
+ '634': ['math'],
+ '635': ['design', 'string'],
+ '636': ['stack'],
+ '637': ['tree'],
+ '638': ['depth-first-search', 'dynamic-programming'],
+ '639': ['dynamic-programming'],
+ '640': ['math'],
+ '642': ['design', 'trie'],
+ '643': ['array'],
+ '644': ['array', 'binary-search'],
+ '645': ['hash-table', 'math'],
+ '646': ['dynamic-programming'],
+ '647': ['dynamic-programming', 'string'],
+ '648': ['hash-table', 'trie'],
+ '649': ['greedy'],
+ '650': ['dynamic-programming'],
+ '651': ['dynamic-programming', 'greedy', 'math'],
+ '652': ['tree'],
+ '653': ['tree'],
+ '654': ['tree'],
+ '655': ['tree'],
+ '656': ['dynamic-programming'],
+ '657': ['string'],
+ '658': ['binary-search'],
+ '659': ['greedy', 'heap'],
+ '660': ['math'],
+ '661': ['array'],
+ '662': ['tree'],
+ '663': ['tree'],
+ '664': ['depth-first-search', 'dynamic-programming'],
+ '665': ['array'],
+ '666': ['tree'],
+ '667': ['array'],
+ '668': ['binary-search'],
+ '669': ['tree'],
+ '670': ['array', 'math'],
+ '671': ['tree'],
+ '672': ['math'],
+ '673': ['dynamic-programming'],
+ '674': ['array'],
+ '675': ['breadth-first-search'],
+ '676': ['hash-table', 'trie'],
+ '677': ['trie'],
+ '678': ['string'],
+ '679': ['depth-first-search'],
+ '680': ['string'],
+ '681': ['string'],
+ '682': ['stack'],
+ '683': ['array', 'binary-search-tree'],
+ '684': ['graph', 'tree', 'union-find'],
+ '685': ['depth-first-search', 'graph', 'tree', 'union-find'],
+ '686': ['string'],
+ '687': ['tree'],
+ '688': ['dynamic-programming'],
+ '689': ['array', 'dynamic-programming'],
+ '690': ['breadth-first-search', 'depth-first-search', 'hash-table'],
+ '691': ['backtracking', 'dynamic-programming'],
+ '692': ['hash-table', 'heap', 'trie'],
+ '693': ['bit-manipulation'],
+ '694': ['depth-first-search', 'hash-table'],
+ '695': ['array', 'depth-first-search'],
+ '696': ['string'],
+ '697': ['array'],
+ '698': ['dynamic-programming'],
+ '699': ['segment-tree', 'binary-search-tree'],
+ '711': ['depth-first-search', 'hash-table'],
+ '712': ['dynamic-programming'],
+ '713': ['array', 'two-pointers'],
+ '714': ['array', 'dynamic-programming', 'greedy'],
+ '715': ['array', 'segment-tree', 'binary-search-tree'],
+ '716': ['design'],
+ '717': ['array'],
+ '718': ['array', 'binary-search', 'dynamic-programming', 'hash-table'],
+ '719': ['array', 'binary-search', 'heap'],
+ '720': ['hash-table', 'trie'],
+ '721': ['depth-first-search', 'union-find'],
+ '722': ['string'],
+ '723': ['array', 'two-pointers'],
+ '724': ['array'],
+ '725': ['linked-list'],
+ '726': ['hash-table', 'stack'],
+ '727': ['dynamic-programming'],
+ '728': ['math'],
+ '729': ['array'],
+ '730': ['dynamic-programming', 'string'],
+ '731': ['array', 'binary-search-tree'],
+ '732': ['segment-tree', 'binary-search-tree'],
+ '733': ['depth-first-search'],
+ '734': ['hash-table'],
+ '735': ['stack'],
+ '736': ['string'],
+ '737': ['depth-first-search', 'union-find'],
+ '738': ['greedy'],
+ '739': ['hash-table', 'stack'],
+ '740': ['dynamic-programming'],
+ '741': ['dynamic-programming'],
+ '742': ['tree'],
+ '743': ['breadth-first-search', 'depth-first-search', 'graph', 'heap'],
+ '744': ['binary-search'],
+ '745': ['trie'],
+ '746': ['array', 'dynamic-programming'],
+ '748': ['hash-table'],
+ '749': ['depth-first-search'],
+ '750': ['dynamic-programming']
+};
+
+plugin.getProblems = function(cb) {
+ plugin.next.getProblems(function(e, problems) {
+ if (e) return cb(e);
+
+ problems.forEach(function(problem) {
+ var id = String(problem.id);
+ if (id in COMPONIES) {
+ problem.companies = (problem.companies || []).concat(COMPONIES[id]);
+ }
+ if (id in TAGS) {
+ problem.tags = (problem.tags || []).concat(TAGS[id]);
+ }
+ });
+ return cb(null, problems);
+ });
+};
+
+module.exports = plugin;
diff --git a/lib/plugins/leetcode.cn.js b/lib/plugins/leetcode.cn.js
new file mode 100644
index 00000000..0095e0bd
--- /dev/null
+++ b/lib/plugins/leetcode.cn.js
@@ -0,0 +1,126 @@
+'use strict'
+var request = require('request');
+
+var config = require('../config');
+var h = require('../helper');
+var log = require('../log');
+var Plugin = require('../plugin');
+var session = require('../session');
+
+//
+// [Usage]
+//
+// https://github.com/skygragon/leetcode-cli-plugins/blob/master/docs/leetcode.cn.md
+//
+var plugin = new Plugin(15, 'leetcode.cn', '2018.11.25',
+ 'Plugin to talk with leetcode-cn APIs.');
+
+plugin.init = function() {
+ config.app = 'leetcode.cn';
+ config.sys.urls.base = 'https://leetcode-cn.com';
+ config.sys.urls.login = 'https://leetcode-cn.com/accounts/login/';
+ config.sys.urls.problems = 'https://leetcode-cn.com/api/problems/$category/';
+ config.sys.urls.problem = 'https://leetcode-cn.com/problems/$slug/description/';
+ config.sys.urls.graphql = 'https://leetcode-cn.com/graphql';
+ config.sys.urls.problem_detail = 'https://leetcode-cn.com/graphql';
+ config.sys.urls.test = 'https://leetcode-cn.com/problems/$slug/interpret_solution/';
+ config.sys.urls.session = 'https://leetcode-cn.com/session/';
+ config.sys.urls.submit = 'https://leetcode-cn.com/problems/$slug/submit/';
+ config.sys.urls.submissions = 'https://leetcode-cn.com/api/submissions/$slug';
+ config.sys.urls.submission = 'https://leetcode-cn.com/submissions/detail/$id/';
+ config.sys.urls.verify = 'https://leetcode-cn.com/submissions/detail/$id/check/';
+ config.sys.urls.favorites = 'https://leetcode-cn.com/list/api/questions';
+ config.sys.urls.favorite_delete = 'https://leetcode-cn.com/list/api/questions/$hash/$id';
+};
+
+// FIXME: refactor those
+// update options with user credentials
+function signOpts(opts, user) {
+ opts.headers.Cookie = 'LEETCODE_SESSION=' + user.sessionId +
+ ';csrftoken=' + user.sessionCSRF + ';';
+ opts.headers['X-CSRFToken'] = user.sessionCSRF;
+ opts.headers['X-Requested-With'] = 'XMLHttpRequest';
+}
+
+function makeOpts(url) {
+ const opts = {};
+ opts.url = url;
+ opts.headers = {};
+
+ if (session.isLogin())
+ signOpts(opts, session.getUser());
+ return opts;
+}
+
+function checkError(e, resp, expectedStatus) {
+ if (!e && resp && resp.statusCode !== expectedStatus) {
+ const code = resp.statusCode;
+ log.debug('http error: ' + code);
+
+ if (code === 403 || code === 401) {
+ e = session.errors.EXPIRED;
+ } else {
+ e = {msg: 'http error', statusCode: code};
+ }
+ }
+ return e;
+}
+
+plugin.getProblems = function(cb) {
+ plugin.next.getProblems(function(e, problems) {
+ if (e) return cb(e);
+
+ plugin.getProblemsTitle(function(e, titles) {
+ if (e) return cb(e);
+
+ problems.forEach(function(problem) {
+ const title = titles[problem.id];
+ if (title)
+ problem.name = title;
+ });
+
+ return cb(null, problems);
+ });
+ });
+};
+
+plugin.getProblemsTitle = function(cb) {
+ log.debug('running leetcode.cn.getProblemNames');
+
+ const opts = makeOpts(config.sys.urls.graphql);
+ opts.headers.Origin = config.sys.urls.base;
+ opts.headers.Referer = 'https://leetcode-cn.com/api/problems/algorithms/';
+
+ opts.json = true;
+ opts.body = {
+ query: [
+ 'query getQuestionTranslation($lang: String) {',
+ ' translations: allAppliedQuestionTranslations(lang: $lang) {',
+ ' title',
+ ' question {',
+ ' questionId',
+ ' }',
+ ' }',
+ '}',
+ ''
+ ].join('\n'),
+ variables: {},
+ operationName: 'getQuestionTranslation'
+ };
+
+ const spin = h.spin('Downloading questions titles');
+ request.post(opts, function(e, resp, body) {
+ spin.stop();
+ e = checkError(e, resp, 200);
+ if (e) return cb(e);
+
+ const titles = [];
+ body.data.translations.forEach(function(x) {
+ titles[x.question.questionId] = x.title;
+ });
+
+ return cb(null, titles);
+ });
+};
+
+module.exports = plugin;
diff --git a/lib/plugins/solution.discuss.js b/lib/plugins/solution.discuss.js
new file mode 100644
index 00000000..e78b90af
--- /dev/null
+++ b/lib/plugins/solution.discuss.js
@@ -0,0 +1,100 @@
+var request = require('request');
+
+var log = require('../log');
+var chalk = require('../chalk');
+var Plugin = require('../plugin');
+var session = require('../session');
+
+//
+// [Usage]
+//
+// https://github.com/skygragon/leetcode-cli-plugins/blob/master/docs/solution.discuss.md
+//
+var plugin = new Plugin(200, 'solution.discuss', '2019.02.03',
+ 'Plugin to fetch most voted solution in discussions.');
+
+var URL_DISCUSSES = 'https://leetcode.com/graphql';
+var URL_DISCUSS = 'https://leetcode.com/problems/$slug/discuss/$id';
+
+function getSolution(problem, lang, cb) {
+ if (!problem) return cb();
+
+ if (lang === 'python3') lang = 'python';
+
+ var opts = {
+ url: URL_DISCUSSES,
+ json: true,
+ body: {
+ query: [
+ 'query questionTopicsList($questionId: String!, $orderBy: TopicSortingOption, $skip: Int, $query: String, $first: Int!, $tags: [String!]) {',
+ ' questionTopicsList(questionId: $questionId, orderBy: $orderBy, skip: $skip, query: $query, first: $first, tags: $tags) {',
+ ' ...TopicsList',
+ ' }',
+ '}',
+ 'fragment TopicsList on TopicConnection {',
+ ' totalNum',
+ ' edges {',
+ ' node {',
+ ' id',
+ ' title',
+ ' post {',
+ ' content',
+ ' voteCount',
+ ' author {',
+ ' username',
+ ' }',
+ ' }',
+ ' }',
+ ' }',
+ '}'
+ ].join('\n'),
+
+ operationName: 'questionTopicsList',
+ variables: JSON.stringify({
+ query: '',
+ first: 1,
+ skip: 0,
+ orderBy: 'most_votes',
+ questionId: '' + problem.id,
+ tags: [lang]
+ })
+ }
+ };
+ request(opts, function(e, resp, body) {
+ if (e) return cb(e);
+ if (resp.statusCode !== 200)
+ return cb({msg: 'http error', statusCode: resp.statusCode});
+
+ const solutions = body.data.questionTopicsList.edges;
+ const solution = solutions.length > 0 ? solutions[0].node : null;
+ return cb(null, solution);
+ });
+}
+
+plugin.getProblem = function(problem, cb) {
+ plugin.next.getProblem(problem, function(e, problem) {
+ if (e || !session.argv.solution) return cb(e, problem);
+
+ var lang = session.argv.lang;
+ getSolution(problem, lang, function(e, solution) {
+ if (e) return cb(e);
+ if (!solution) return log.error('Solution not found for ' + lang);
+
+ var link = URL_DISCUSS.replace('$slug', problem.slug).replace('$id', solution.id);
+ var content = solution.post.content.replace(/\\n/g, '\n').replace(/\\t/g, '\t');
+
+ log.info();
+ log.info(solution.title);
+ log.info();
+ log.info(chalk.underline(link));
+ log.info();
+ log.info('* Lang: ' + lang);
+ log.info('* Author: ' + solution.post.author.username);
+ log.info('* Votes: ' + solution.post.voteCount);
+ log.info();
+ log.info(content);
+ });
+ });
+};
+
+module.exports = plugin;