Compilare: main.cpp: In function 'void dfs(int, int)': main.cpp:16:15: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(i=0; i<muchie[nod1].size(); i++) ~^~~~~~~~~~~~~~~~~~~~ main.cpp:21:23: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(j=0; j<muchie[nod2].size(); j++) ~^~~~~~~~~~~~~~~~~~~~ main.cpp: In function 'int main()': main.cpp:54:19: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(j=0; j<muchie[i].size(); j++) ~^~~~~~~~~~~~~~~~~