Compilare: main.cpp: In function 'void DFS(int)': main.cpp:23:18: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(int i=0;i<muchii[nod].size();i++) ~^~~~~~~~~~~~~~~~~~~ main.cpp: In function 'int compara(muchie, muchie)': main.cpp:37:1: warning: control reaches end of non-void function [-Wreturn-type] } ^ main.cpp: In function 'int main()': main.cpp:101:28: warning: 'k' may be used uninitialized in this function [-Wmaybe-uninitialized] if(s[1]=='D') k=k+20; ~^~~~~