View Compilation Error

0_0_39280554_3312.cpp: In function 'int main()':
0_0_39280554_3312.cpp:56:9: error: 'memset' was not declared in this scope
   56 |         memset(qp,0,sizeof qp);
      |         ^~~~~~
0_0_39280554_3312.cpp:5:1: note: 'memset' is defined in header '<cstring>'; did you forget to '#include <cstring>'?
    4 | #include<iostream>
  +++ |+#include <cstring>
    5 |