Compilare: user.cpp: In function ‘int main()’: user.cpp:46:38: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(i=0;i<graf[nod].size();i++) ^ user.cpp:75:38: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(i=0;i<graf[nod].size();i++) ^ user.cpp:18:17: warning: unused variable ‘j’ [-Wunused-variable] int p,n,m,i,j,x,y,ma,a,b,c,nod; ^