Compilare: user.cpp: In function ‘bool better(int, int)’: user.cpp:53:31: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for (i = 0; i < aux1.size(); i++) { ^ user.cpp: In function ‘int main()’: user.cpp:111:35: warning: ignoring return value of ‘FILE* freopen(const char*, const char*, FILE*)’, declared with attribute warn_unused_result [-Wunused-result] freopen("scara2.in","r",stdin); ^ user.cpp:112:37: warning: ignoring return value of ‘FILE* freopen(const char*, const char*, FILE*)’, declared with attribute warn_unused_result [-Wunused-result] freopen("scara2.out","w",stdout); ^ user.cpp:114:40: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] scanf("%d%d%d%d", &h, &how, &n, &p); ^