View Compilation Error

0_0_39217311_16236.cpp: In function 'int main()':
0_0_39217311_16236.cpp:10:30: error: 'strlen' was not declared in this scope
   10 |                 int length = strlen(string);
      |                              ^~~~~~
0_0_39217311_16236.cpp:4:1: note: 'strlen' is defined in header '<cstring>'; did you forget to '#include <cstring>'?
    3 | #include <string>
  +++ |+#include <cstring>
    4 | int main() {
0_0_39217311_16236.cpp:13:56: error: ISO C++ forbids comparison between pointer and integer [-fpermissive]
   13 |                         if (string[i] <= '9' && string >= '0') {
      |                                                 ~~~~~~~^~~~~~