Compilare: user.cpp: In function ‘int gasit(int, int)’: user.cpp:11:31: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(int i=0;i<pop[k].size();i++) ^ user.cpp: In function ‘void bf(int, int, int)’: user.cpp:22:33: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(int i=0;i<v[k].size();i++) ^ user.cpp: In function ‘int main()’: user.cpp:57:37: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(int j=0;j<v[i].size();j++) ^