Compilare: user.cpp: In function ‘void add(std::vector<number>)’: user.cpp:63:33: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(int i = 0; i < mus.size(); i ++) ^ user.cpp:70:33: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(int i = 0; i < ord.size(); i ++) ^ user.cpp: In function ‘int main()’: user.cpp:109:38: warning: ignoring return value of ‘FILE* freopen(const char*, const char*, FILE*)’, declared with attribute warn_unused_result [-Wunused-result] freopen("shukarime.in","r",stdin); ^ user.cpp:111:20: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] scanf("%d", &T); ^ user.cpp:114:30: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] scanf("%d%d", &n, &g); ^ user.cpp:118:30: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] scanf("%d", &aux); ^