View Compilation Error

0_0_39552902_25452.cpp: In function 'int solve()':
0_0_39552902_25452.cpp:39:5: error: 'memset' was not declared in this scope
   39 |     memset(vis,0,sizeof(vis));
      |     ^~~~~~
0_0_39552902_25452.cpp:5:1: note: 'memset' is defined in header '<cstring>'; did you forget to '#include <cstring>'?
    4 | #include<cstdlib>
  +++ |+#include <cstring>
    5 | using namespace std;