View Compilation Error

0_0_39503343_13985.cpp: In function 'int main()':
0_0_39503343_13985.cpp:33:17: error: 'nth' was not declared in this scope
   33 |                 nth(c + 1, c + 1 + n - lim + 1, c + 1 + n);
      |                 ^~~