View Compilation Error

0_0_39645175_15477.cpp: In function 'int main()':
0_0_39645175_15477.cpp:46:5: error: 'memset' was not declared in this scope
   46 |     memset(dp,0x3f,sizeof(dp));
      |     ^~~~~~
0_0_39645175_15477.cpp:11:1: note: 'memset' is defined in header '<cstring>'; did you forget to '#include <cstring>'?
   10 | #include <vector>
  +++ |+#include <cstring>
   11 | #define re register//喵内～