Compilare: main.cpp: In function 'void find(int, int)': main.cpp:16:19: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(int m=0; m<v1[j].size(); m++) ~^~~~~~~~~~~~~ main.cpp: In function 'int main()': main.cpp:36:19: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(int j=0; j<v1[i].size(); j++) ~^~~~~~~~~~~~~ main.cpp:42:17: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(int i=0; i<v2[nod].size(); i++) ~^~~~~~~~~~~~~~~