Compilare: main.cpp: In function 'void DFS(int)': main.cpp:28:18: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(int i=0;i<G[x].size();i++) ~^~~~~~~~~~~~ main.cpp: In function 'void DFSt(int)': main.cpp:43:18: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(int i=0;i<Gt[x].size();i++) ~^~~~~~~~~~~~~ main.cpp: In function 'void Do()': main.cpp:53:26: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] if(CTC[ct].size()>lgmax) {nr=ct;lgmax=CTC[ct].size();} ~~~~~~~~~~~~~~^~~~~~ main.cpp: In function 'void Back(int)': main.cpp:73:11: warning: suggest explicit braces to avoid ambiguous 'else' [-Wparentheses] if(Bun(k)) ^