View Compilation Error

0_0_39060971_20518.cpp: In function 'void solve()':
0_0_39060971_20518.cpp:146:9: error: 'sort' was not declared in this scope; did you mean 'short'?
  146 |         sort(box + 1, box + id + 1, cmp);
      |         ^~~~
      |         short