Compilare: main.cpp: In function 'std::vector<std::vector<int> > infas(std::vector<int>)': main.cpp:34:18: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(int i=0;i<v.size();i++) ~^~~~~~~~~ main.cpp:47:18: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(int i=1;i<v.size();i++) ~^~~~~~~~~ main.cpp: In function 'int main()': main.cpp:103:22: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(int j=0;j<ans[1].size();j++) out<<ans[1][j]+1<<' '; ~^~~~~~~~~~~~~~