Compilare: main.cpp: In function 'void eliminaMuchie()': main.cpp:45:19: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(int i=0; i<G[muchie.first].size(); i++) ~^~~~~~~~~~~~~~~~~~~~~~~ main.cpp:53:19: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(int i=0; i<G[muchie.second].size(); i++) ~^~~~~~~~~~~~~~~~~~~~~~~~ main.cpp: In function 'void dfs(int)': main.cpp:78:19: warning: operation on 'DP[nod][0]' may be undefined [-Wsequence-point] DP[nod][0]=DP[nod][0]=0; ~~~~~~~~~~^~~~~~~~~~~~~