Compilare: main.cpp: In function 'int main()': main.cpp:32:36: warning: ignoring return value of 'FILE* freopen(const char*, const char*, FILE*)', declared with attribute warn_unused_result [-Wunused-result] freopen("gfact.in", "r", stdin); ^ main.cpp:33:38: warning: ignoring return value of 'FILE* freopen(const char*, const char*, FILE*)', declared with attribute warn_unused_result [-Wunused-result] freopen("gfact.out", "w", stdout); ^ main.cpp:35:30: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result] scanf("%lld%lld", &p, &q); ^ main.cpp: In function 'long long int l(long long int, long long int)': main.cpp:18:42: warning: 'l' may be used uninitialized in this function [-Wmaybe-uninitialized] long long st = 0, m, dr = 1LL << 60, l, x; ^ main.cpp: In function 'int main()': main.cpp:18:42: warning: 'l' may be used uninitialized in this function [-Wmaybe-uninitialized]