View Compilation Error

0_0_39394568_32710.cpp: In function 'void NumOfMethod()':
0_0_39394568_32710.cpp:8:5: error: 'memset' was not declared in this scope
    8 |     memset(w, 0, sizeof(w));
      |     ^~~~~~
0_0_39394568_32710.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;