Compilare: main.cpp: In function 'int main()': main.cpp:35:18: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(int j=0;j<B.size();j++) ~^~~~~~~~~ main.cpp:41:13: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] if(i==A.size()-1) ~^~~~~~~~~~~~ main.cpp:48:14: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(i=0;i<minn(sol.size(),1000);i++) ^