View Compilation Error

0_0_39243249_23890.cpp: In function 'int main()':
0_0_39243249_23890.cpp:46:9: error: 'sort' was not declared in this scope; did you mean 'short'?
   46 |         sort(stu + 1, stu + pin + 1, cmp);
      |         ^~~~
      |         short