Compilare: main.cpp: In function 'void DFS(int)': main.cpp:47:22: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for (int i = 0;i < vecin[ns].size();++i) ~~^~~~~~~~~~~~~~~~~~ main.cpp: In function 'int main()': main.cpp:79:62: warning: array subscript has type 'char' [-Wchar-subscripts] v[i].cost += (int)(pow(5,j) + 0.5) * energie[s[j]];} ^ main.cpp:92:21: warning: unused variable 'cnt' [-Wunused-variable] int sum = 0,cnt = 0,nr = 0; ^~~