Compilare: main.cpp: In function 'void afis(int)': main.cpp:36:22: warning: format '%d' expects argument of type 'int', but argument 2 has type 'std::bitset<2000001ul>::reference*' [-Wformat=] printf("%d", v[X]); ^ main.cpp: In function 'int main()': main.cpp:41:39: warning: ignoring return value of 'FILE* freopen(const char*, const char*, FILE*)', declared with attribute warn_unused_result [-Wunused-result] freopen("multiplu.in", "r", stdin); ^ main.cpp:42:41: warning: ignoring return value of 'FILE* freopen(const char*, const char*, FILE*)', declared with attribute warn_unused_result [-Wunused-result] freopen("multiplu.out", "w", stdout); ^ main.cpp:43:47: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result] scanf("%d%d", &a, &b), cmmmc = Cmmmc(a, b); ^