View Compilation Error

0_0_39668908_304.cpp: In function 'int main()':
0_0_39668908_304.cpp:16:17: error: 'memset' was not declared in this scope
   16 |                 memset(num, 0, sizeof(num));
      |                 ^~~~~~
0_0_39668908_304.cpp:6:1: note: 'memset' is defined in header '<cstring>'; did you forget to '#include <cstring>'?
    5 | # include<vector>
  +++ |+#include <cstring>
    6 | int num[15010];  // 记录离散化后各点的状态