View Compilation Error

0_0_39219700_9272.cpp: In function 'int main()':
0_0_39219700_9272.cpp:18:17: error: 'sort' was not declared in this scope; did you mean 'sqrt'?
   18 |                 sort(arr1, arr1 + n + m,comp);
      |                 ^~~~
      |                 sqrt