View Compilation Error

0_0_37267161_3216.cpp:1:30: error: stray '#' in program
 <pre name="code" class="cpp">#include<cstdio>
                              ^
0_0_37267161_3216.cpp:1:1: error: expected unqualified-id before '<' token
 <pre name="code" class="cpp">#include<cstdio>
 ^
0_0_37267161_3216.cpp: In function 'int main()':
0_0_37267161_3216.cpp:7:24: error: 'scanf' was not declared in this scope
     while(scanf("%d",&n)!=EOF&&n){
                        ^
0_0_37267161_3216.cpp:7:27: error: 'EOF' was not declared in this scope
     while(scanf("%d",&n)!=EOF&&n){
                           ^
0_0_37267161_3216.cpp:10:25: error: 'a' was not declared in this scope
             scanf("%d",&a[i]); res=res^a[i];
                         ^
0_0_37267161_3216.cpp:14:16: error: 'a' was not declared in this scope
             if(a[i]>(res^a[i])) ans++;
                ^
0_0_37267161_3216.cpp:16:26: error: 'printf' was not declared in this scope
         printf("%d\n",ans);
                          ^