Compilare: main.cpp: In function 'void AddHash(int)': main.cpp:16:18: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(int i=0;i<v[rest].size();i++) ~^~~~~~~~~~~~~~~ main.cpp:18:30: warning: suggest parentheses around assignment used as truth value [-Wparentheses] if(v[rest][i].first=x) ^ main.cpp: In function 'void DeleteHash(int)': main.cpp:30:18: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(int i=0;i<v[rest].size();i++) ~^~~~~~~~~~~~~~~ main.cpp: In function 'int VerifHash(int)': main.cpp:41:18: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(int i=0;i<v[rest].size();i++) ~^~~~~~~~~~~~~~~