View Compilation Error

0_0_24354233_26756.cpp:1:2: error: stray '#' in program
 V#include<bits/stdc++.h>
  ^
0_0_24354233_26756.cpp:1:1: error: 'V' does not name a type
 V#include<bits/stdc++.h>
 ^
0_0_24354233_26756.cpp: In function 'int main()':
0_0_24354233_26756.cpp:6:22: error: 'scanf' was not declared in this scope
   while(scanf("%d",&n)!=EOF){
                      ^
0_0_24354233_26756.cpp:6:25: error: 'EOF' was not declared in this scope
   while(scanf("%d",&n)!=EOF){
                         ^
0_0_24354233_26756.cpp:9:24: error: 'memset' was not declared in this scope
    memset(a,0,sizeof(a));
                        ^
0_0_24354233_26756.cpp:22:29: error: 'printf' was not declared in this scope
   if(n<=4) printf("%d\n",ans);
                             ^
0_0_24354233_26756.cpp:23:34: error: 'printf' was not declared in this scope
   else printf("%d\n",ans+n/4+flag);
                                  ^