Compilare: user.cpp: In function ‘int main()’: user.cpp:26:33: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for (int j = 0; j < g[i].size(); j++) ^ user.cpp:42:33: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for (int i = 0; i < putin.size(); i++) ^ user.cpp:77:31: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for (int i = 0; i < sol.size(); i++) ^