View Compilation Error

0_0_39637850_2750.cpp: In function 'int main()':
0_0_39637850_2750.cpp:6:25: error: 'strlen' was not declared in this scope
    6 |                 int len=strlen(s);
      |                         ^~~~~~
0_0_39637850_2750.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;