Compilare: main.cpp: In function 'void baga_in_hash(long long int)': main.cpp:14:24: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(long long i=0;i<v[rest].size();i++)if(val==v[rest][i])return; ~^~~~~~~~~~~~~~~ main.cpp: In function 'bool verifica_in_hash(long long int)': main.cpp:21:24: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(long long i=0;i<v[rest].size();i++)if(val==v[rest][i])return 1; ~^~~~~~~~~~~~~~~ main.cpp: In function 'void sterge_din_hash(long long int)': main.cpp:28:24: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(long long i=0;i<v[rest].size();i++)if(val==v[rest][i]){v[rest].erase(v[rest].begin()+i);return;} ~^~~~~~~~~~~~~~~