View Compilation Error

0_0_38975538_8030.cpp: In function 'int main()':
0_0_38975538_8030.cpp:9:17: error: 'memset' was not declared in this scope
    9 |                 memset(vis, 0, sizeof vis);
      |                 ^~~~~~
0_0_38975538_8030.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;