View Compilation Error

0_0_32711803_29929.cpp:1:1: error: 'include' does not name a type
 include <bits/stdc++.h>
 ^
0_0_32711803_29929.cpp: In function 'int main()':
0_0_32711803_29929.cpp:5:21: error: 'scanf' was not declared in this scope
  int T;scanf("%d",&T);int flag=1;
                     ^
0_0_32711803_29929.cpp:6:33: error: 'memset' was not declared in this scope
  while(T--){memset(a,0,sizeof(a));
                                 ^
0_0_32711803_29929.cpp:26:30: error: 'printf' was not declared in this scope
   }printf("Case #%d: ",flag++);
                              ^