/in/foo.cc:1:21: error: stray '#' in program
 if(!vst[i])continue;#include<bits/stdc++.h>
                     ^
/in/foo.cc:1:1: error: expected unqualified-id before 'if'
 if(!vst[i])continue;#include<bits/stdc++.h>
 ^
/in/foo.cc:1:22: error: 'include' does not name a type
 if(!vst[i])continue;#include<bits/stdc++.h>
                      ^