100 users have solved this problem:

spdskatr, pmoore, he, iamnumber4, hmm789, Lvl9001Wizard, Gomango999, testcoder, dumpy, quanlin, henryho2, Uncle_Zhu, emilyz, owenl131, evanl, jqxcz, Annabel1234, SugmaNuttss, hoangxuanbach, minhnhatnoe, harrysun2006, Yuuron, clairesyd, warren_huang, user, davinformatics, Edward, xiaoxiong, xiaomao, eds, Ghetto, LSC, WenDidIAsk, jadent, nathanael, kidneythedolphin, programmer123, ndosh, yashb_9a3b, dorian, racvlae, robinz, dylanp, Sirhc_47, Double_Slash, Philip_cpp, aerobull42, horiseun, jmuzhen, lion, angus, Matthewwww, Uasoni2, Lucas4732, Lithanium, OoogaDooga, blx330, caterpillow, Supermarine_Spitfire, SirLemonMeringue, trollkilung, doantronganh2008, HelperTcell, TheEpicCowOfLife, Nosna, icaijy, Curious_Pengu, newai, sandworm, Andy, James, jszqlew, bugs, mr_pika, ProperDiamond, mtpedro, ckccat, ifndef_INDEED_TIS_TRUE_HPP_, ericgw, aviannight123123, Muyao_Zhang, teapot911911, Justin_Zhu, PeaceOfCake, waxyang, bigdaddyhouse, nosna, meisean2009, YSH2020, SuspiciousAmogus, dzuizz, vineyk24, JustinWang, jizongzhang, ethan, lsjo, kk, albertzhong01, dusky, AncoraImparo,