one more hell,please

#include <iostream>
#include <cstring>

using namespace std;

int main() {

  char arr[]="aaaauaaaa";
  int i = 0;
  int len = strlen(arr);
  bool a = true;

  for (i = 0; i <= (len / 2); i++){
    if (arr [i] != arr [len - i - 1] ) {
      a = false;
    break;
    }
  }
    if (a) {
     cout << "Yes" << endl;
    } else {
      cout << "No" << endl;
    }

  return 0;

}