View Compilation Error

0_0_39338613_27367.cpp: In function 'int main()':
0_0_39338613_27367.cpp:27:26: error: 'memset' was not declared in this scope
   27 |         int courses[m];  memset(courses, 0, sizeof(courses));
      |                          ^~~~~~
0_0_39338613_27367.cpp:2:1: note: 'memset' is defined in header '<cstring>'; did you forget to '#include <cstring>'?
    1 | #include<iostream>
  +++ |+#include <cstring>
    2 | using namespace std;