View Compilation Error

0_0_39098431_5472.cpp: In function 'int main()':
0_0_39098431_5472.cpp:11:19: error: 'strlen' was not declared in this scope
   11 |                 l=strlen(a);
      |                   ^~~~~~
0_0_39098431_5472.cpp:2:1: note: 'strlen' is defined in header '<cstring>'; did you forget to '#include <cstring>'?
    1 | #include<stdio.h>
  +++ |+#include <cstring>
    2 | int main()