29 users have solved this problem:

user, TheEpicCowOfLife, he, Bean, lion, newai, davinformatics, programmer123, horiseun, ndosh, dorian, Philip_cpp, angus, Matthewwww, Gomango999, Lithanium, ad_red, Double_Slash, WenDidIAsk, BigD, Ghetto, Uasoni2, Vivek, junkbot, ifndef_INDEED_TIS_TRUE_HPP_, OoogaDooga, mtpedro, JustinWang, sandworm,