Compilare: user.cpp: In function ‘int main()’: user.cpp:25:33: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(j=0;j<lvl[i-1].size();j++){ ^ user.cpp:38:19: warning: statement has no effect [-Wunused-value] for(ii;ii<=k;ii++){ ^ user.cpp:51:38: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(ii=0;ii<team[j].size();ii++) ^ user.cpp:54:38: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(ii=0;ii<team[j].size();ii++){ ^ user.cpp:57:22: warning: statement has no effect [-Wunused-value] for(x;x<=y;x++) ^