Eroare de compilare: user.cpp:6:33: error: redefinition of ‘int nod’ int n,sol1,nod,grad[nmax],m,x,y,nod,k,vec,viz; ^~~ user.cpp:6:12: note: ‘int nod’ previously declared here int n,sol1,nod,grad[nmax],m,x,y,nod,k,vec,viz; ^~~ user.cpp: In function ‘void solve()’: user.cpp:13:22: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(int j=0;j<lst[i].size();++j) ~^~~~~~~~~~~~~~ user.cpp:16:23: error: invalid types ‘int[int]’ for array subscript if(viz[nod]) continue; ^ user.cpp:17:20: error: invalid types ‘int[int]’ for array subscript viz[nod]=1; ^ user.cpp:24:26: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(int k=0;k<v[nod].size();++k) ~^~~~~~~~~~~~~~