45 users have solved this problem:

ryno, spdskatr, ja_kingy, pmoore, he, Lvl9001Wizard, Gomango999, iamnumber4, testcoder, dumpy, vineyk24, quanlin, trangim, evanl, tbinhnoob, user, lion, vvzz, warren_huang, horiseun, tiko, Uasoni2, ndosh, WenDidIAsk, davinformatics, programmer123, henryho2, lupispuma74, dorian, loctildore, numb3r5, Philip_cpp, Sirhc_47, Double_Slash, jmuzhen, Ghetto, anson, aerobull42, pony_joe1, OoogaDooga, TheEpicCowOfLife, finehaveanormalusername, dusky, caterpillow, Lithanium