View Compilation Error

0_0_39090697_24057.cpp: In function 'int main()':
0_0_39090697_24057.cpp:48:3: error: 'memset' was not declared in this scope
   48 |   memset(dp,0,sizeof(dp));  for(i=1;i<=len1;i++)
      |   ^~~~~~
0_0_39090697_24057.cpp:4:1: note: 'memset' is defined in header '<cstring>'; did you forget to '#include <cstring>'?
    3 | #include<cstdio>
  +++ |+#include <cstring>
    4 | using namespace std;char str1[120];