Compilare: user.cpp: In function ‘void DFS(int, int)’: user.cpp:17:32: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(int j = 0; j < ad[i].size(); j++) { ^ user.cpp: In function ‘int main()’: user.cpp:65:18: warning: right operand of comma operator has no effect [-Wunused-value] delete[] v, viz; ^ user.cpp:62:23: warning: ‘max’ may be used uninitialized in this function [-Wmaybe-uninitialized] if(!done) maxS = max; ^