View Compilation Error

0_0_38889966_2900.cpp: In function 'int main()':
0_0_38889966_2900.cpp:19:17: error: 'memset' was not declared in this scope
   19 |                 memset(sum,0,sizeof(sum));
      |                 ^~~~~~
0_0_38889966_2900.cpp:7:1: note: 'memset' is defined in header '<cstring>'; did you forget to '#include <cstring>'?
    6 | #include <iostream>
  +++ |+#include <cstring>
    7 | using namespace std;