Compilare: user.cpp: In function ‘void dfs(int)’: user.cpp:33:36: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(int i = 0; i < v[nod].size(); i++){ ^ user.cpp: In function ‘int main()’: user.cpp:43:20: warning: suggest parentheses around ‘+’ inside ‘>>’ [-Wparentheses] fin>> a[i] + 1; ^ user.cpp:66:34: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(j = 0; j < w[i].size(); j++){ ^ user.cpp:81:34: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(i = 0; i < v[x].size(); i++){ ^