View Compilation Error

0_0_32867303_9392.cpp:1:15: error: expected constructor, destructor, or type conversion before '(' token
         memset(ha,0,sizeof(ha));
               ^
0_0_32867303_9392.cpp:4:14: error: expected constructor, destructor, or type conversion before '(' token
         scanf("%d",&n);
              ^
0_0_32867303_9392.cpp:5:9: error: expected unqualified-id before 'for'
         for(int i=1;i<=n;i++)
         ^
0_0_32867303_9392.cpp:5:21: error: 'i' does not name a type
         for(int i=1;i<=n;i++)
                     ^
0_0_32867303_9392.cpp:5:26: error: 'i' does not name a type
         for(int i=1;i<=n;i++)
                          ^