View Compilation Error

0_0_39633145_21367.cpp: In function 'int main()':
0_0_39633145_21367.cpp:54:9: error: 'memset' was not declared in this scope
   54 |         memset(ans,0,sizeof ans);
      |         ^~~~~~
0_0_39633145_21367.cpp:8:1: note: 'memset' is defined in header '<cstring>'; did you forget to '#include <cstring>'?
    7 | #include<bitset>
  +++ |+#include <cstring>
    8 | using namespace std;