View Compilation Error

0_0_39217504_26466.cpp: In function 'int main()':
0_0_39217504_26466.cpp:15:30: error: 'strlen' was not declared in this scope
   15 |                 int length = strlen(string);
      |                              ^~~~~~
0_0_39217504_26466.cpp:5:1: note: 'strlen' is defined in header '<cstring>'; did you forget to '#include <cstring>'?
    4 | #include <math.h>
  +++ |+#include <cstring>
    5 | using namespace std;