Compilare: main.cpp: In function 'void DFS(int)': main.cpp:30:20: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for (int i=0; i<edge[node].size(); i++){ ~^~~~~~~~~~~~~~~~~~ main.cpp: In function 'int main()': main.cpp:207:20: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for (j=0; j<pos[dest].size(); j++) ~^~~~~~~~~~~~~~~~~ main.cpp:146:12: warning: variable 'E' set but not used [-Wunused-but-set-variable] int V, E, src, dest, i, j, m; ^