View Compilation Error

0_0_39808008_19148.cpp: In function 'int main()':
0_0_39808008_19148.cpp:61:17: error: 'memset' was not declared in this scope
   61 |                 memset(ins,0,sizeof ins);
      |                 ^~~~~~
0_0_39808008_19148.cpp:6:1: note: 'memset' is defined in header '<cstring>'; did you forget to '#include <cstring>'?
    5 | #include <cmath>
  +++ |+#include <cstring>
    6 | using namespace std;