View Compilation Error

0_0_38838345_26211.cpp: In function 'int main()':
0_0_38838345_26211.cpp:12:17: error: 'memset' was not declared in this scope
   12 |                 memset(dp, -1, sizeof dp); dp[1][0] = s[1];
      |                 ^~~~~~
0_0_38838345_26211.cpp:2:1: note: 'memset' is defined in header '<cstring>'; did you forget to '#include <cstring>'?
    1 | #include <iostream>
  +++ |+#include <cstring>
    2 | typedef long long ll;