View Compilation Error

0_0_39076785_14199.cpp: In function 'int main()':
0_0_39076785_14199.cpp:10:5: error: 'memset' was not declared in this scope
   10 |     memset(extra,0,sizeof(extra));
      |     ^~~~~~
0_0_39076785_14199.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;