Compilare: main.cpp: In function 'void DFS(int)': main.cpp:46:18: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(int j=0;j<v[nod].size();j++) ~^~~~~~~~~~~~~~ main.cpp: In function 'void prim()': main.cpp:92:26: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(int j=0;j<v[x].size();j++) ~^~~~~~~~~~~~ main.cpp: In function 'int valoareobs(char)': main.cpp:32:1: warning: control reaches end of non-void function [-Wreturn-type] } ^