View Compilation Error

0_0_39568264_25436.cpp: In function 'int main()':
0_0_39568264_25436.cpp:13:17: error: 'strlen' was not declared in this scope
   13 |         int len=strlen(s);
      |                 ^~~~~~
0_0_39568264_25436.cpp:2:1: note: 'strlen' is defined in header '<cstring>'; did you forget to '#include <cstring>'?
    1 | #include <iostream>
  +++ |+#include <cstring>
    2 | using namespace std;