Compilare: main.cpp: In function 'void afisare(int)': main.cpp:14:11: warning: unused variable 'ok' [-Wunused-variable] int i,ok=0; ^~ main.cpp: In function 'bool verificare(int, int)': main.cpp:34:14: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(i=0;i<hate[a].size();i++) ~^~~~~~~~~~~~~~~ main.cpp: In function 'int main()': main.cpp:90:18: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(j=0;j<hate[i].size();j++) ~^~~~~~~~~~~~~~~