Compilare: user.cpp: In function ‘int itereaza()’: user.cpp:38:37: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] while(it[i] < a[i].size() && a[i][it[i]] < itmax) ^ user.cpp:40:35: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] if(it[i] == a[i].size()) ^ user.cpp: In function ‘void afisare()’: user.cpp:70:33: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(int i = 0; i < sol.size(); i++) ^