Compilare: user.cpp: In function ‘void dfs(int)’: user.cpp:16:27: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(i=0;i<v[nod].size();i++) ^ user.cpp: In function ‘int main()’: user.cpp:29:15: warning: suggest parentheses around assignment used as truth value [-Wparentheses] viz[i]=c[i]=0; ^ user.cpp:59:38: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(i=0;i<transpus[nod].size();i++) ^ user.cpp:23:14: warning: unused variable ‘j’ [-Wunused-variable] {int t,n,i,m,j,a,b; ^