Time Exceeded
/in/foo.cc: In function 'void solve(int)':
/in/foo.cc:97:21: warning: unused variable 'v' [-Wunused-variable]
int u = from[e],v = to[e];
^
/in/foo.cc: In function 'void solve(int)':
/in/foo.cc:97:21: warning: unused variable 'v' [-Wunused-variable]
int u = from[e],v = to[e];
^
