View Compilation Error

0_0_38858195_21287.cpp: In function 'int main()':
0_0_38858195_21287.cpp:20:17: error: 'memset' was not declared in this scope
   20 |                 memset(numLevel, 0, sizeof(numLevel));
      |                 ^~~~~~
0_0_38858195_21287.cpp:3:1: note: 'memset' is defined in header '<cstring>'; did you forget to '#include <cstring>'?
    2 | #include <iostream>
  +++ |+#include <cstring>
    3 | #include <string>