#include <algorithm>
#include <iostream>

bool is_ascii_digit(int ascii) {
  if (ascii < (int)'0' || ascii > (int)'9') {
    return false;
  }

  return true;
}

bool are_digits_strictly_increasing(int number) {
  auto previousDigit = number % 10;
  number /= 10;

  while (number > 0) {
    auto nextDigit = number % 10;
    if (nextDigit > previousDigit) {
      return false;
    }
    previousDigit = nextDigit;

    number /= 10;
  }
  return true;
}

int fun(int* arr, int arrLength, bool (**tests)(int), int testsLength) {
  int results[testsLength];

  std::fill(results, results + testsLength, 0);

  for (auto i = 0; i < arrLength; i++) {
    for (auto j = 0; j < testsLength; j++) {
      results[j] += (int)tests[j](arr[i]);
    }
  }

  auto biggest = 0;
  for (auto j = 0; j < testsLength; j++) {
    if (results[j] > results[biggest]) {
      biggest = j;
    }
  }
  return biggest;
}

int main() {
  const auto arrLength = 10;
  int arr[arrLength] = {12, 34, 56, 48, 23, 55, 57, 45, 52, -235};
  const auto farrLength = 2;
  bool (*farr[farrLength])(int) = {is_ascii_digit,
                                   are_digits_strictly_increasing};

  const auto sarrLength = 2;
  char* sarr[sarrLength] = {"is_ascii_digit", "are_digits_strictly_increasing"};

  auto index = fun(arr, arrLength, farr, farrLength);

  std::cout << sarr[index] << std::endl;
}