Compilare: user.cpp: In function ‘void AddValue(int)’: user.cpp:9:33: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(i=0;i<table[which].size();i++) ^ user.cpp: In function ‘void FindValue(int)’: user.cpp:16:33: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(i=0;i<table[which].size();i++) ^ user.cpp: In function ‘int main()’: user.cpp:25:35: warning: ignoring return value of ‘FILE* freopen(const char*, const char*, FILE*)’, declared with attribute warn_unused_result [-Wunused-result] freopen("muzica.in","r",stdin); ^ user.cpp:26:37: warning: ignoring return value of ‘FILE* freopen(const char*, const char*, FILE*)’, declared with attribute warn_unused_result [-Wunused-result] freopen("muzica.out","w",stdout); ^ user.cpp:28:49: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] scanf("%d%d%d%d%d%d%d",&n,&m,&a,&b,&c,&d,&e); ^ user.cpp:30:23: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] scanf("%d",&x); ^