View Compilation Error

0_0_39687751_27460.cpp: In function 'int zhuliu(int, int, int)':
0_0_39687751_27460.cpp:34:17: error: 'memset' was not declared in this scope
   34 |                 memset(id, -1, sizeof(id));
      |                 ^~~~~~
0_0_39687751_27460.cpp:4:1: note: 'memset' is defined in header '<cstring>'; did you forget to '#include <cstring>'?
    3 | #include<cmath>
  +++ |+#include <cstring>
    4 | using namespace std;