View Compilation Error

0_0_39594020_6766.cpp: In function 'int main()':
0_0_39594020_6766.cpp:15:37: error: 'h' was not declared in this scope
   15 |                         scanf("%d",&h[i]);
      |                                     ^
0_0_39594020_6766.cpp:17:22: error: 'h' was not declared in this scope
   17 |                 sort(h,h+n,cmp);
      |                      ^