Compilare: user.cpp:2:14: warning: overflow in implicit constant conversion [-Woverflow] #define INF -1e9 ^ user.cpp:4:20: note: in expansion of macro ‘INF’ unsigned int ans = INF, P, Q, N; ^ user.cpp: In function ‘int main()’: user.cpp:55:31: warning: ignoring return value of ‘FILE* freopen(const char*, const char*, FILE*)’, declared with attribute warn_unused_result [-Wunused-result] freopen("xp.in","r",stdin); ^ user.cpp:56:33: warning: ignoring return value of ‘FILE* freopen(const char*, const char*, FILE*)’, declared with attribute warn_unused_result [-Wunused-result] freopen("xp.out","w",stdout); ^ user.cpp:59:48: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] scanf("%u %u %u %u %u", &N, &A, &B, &P, &Q); ^