Compilare: user.cpp: In function ‘int DFS(int, int, int)’: user.cpp:17:24: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(i=0;i<v[x].size();i++) ^ user.cpp:14:9: warning: variable ‘ok’ set but not used [-Wunused-but-set-variable] { int i,ok=0,ram=0; ^ user.cpp: In function ‘void Search()’: user.cpp:25:7: warning: unused variable ‘i’ [-Wunused-variable] { int i,mid,st=mxc,dr=mxc*(n-1); ^