Eroare de compilare: user.cpp:11:63: error: redefinition of ‘int z’ int n,m,j,z,x,y,c,q,t[1005],fmn,ct,flow,s[5005],p[1005][1005],z; ^ user.cpp:11:11: error: ‘int z’ previously declared here int n,m,j,z,x,y,c,q,t[1005],fmn,ct,flow,s[5005],p[1005][1005],z; ^ user.cpp: In function ‘void BFS()’: user.cpp:25:26: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(i=0;i<v[c].size();i++) ^ user.cpp: In function ‘int main()’: user.cpp:51:28: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] {for(i=0;i<v[n].size();i++) ^