Compilare: main.cpp: In function 'bool solve()': main.cpp:26:23: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(int j=0; j<vecini[nod].size(); j++) ~^~~~~~~~~~~~~~~~~~~ main.cpp: In function 'int main()': main.cpp:59:23: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(int i=0; i<vecini[n+m+1].size(); i++) ~^~~~~~~~~~~~~~~~~~~~~ main.cpp:76:23: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(int j=0; j<vecini[i].size(); j++) ~^~~~~~~~~~~~~~~~~