Arrays in C

lists.c

#include <stdio.h>

int factorial(int n) {
    int result = 1;
    /* for i in range(1, n + 1): */
    for (int i = 1; i < n + 1; i++) {
        result = result * i;
    }
    return result;
}

int count_div_2(int n) {
    int count = 0;
    while (n != 1) {
        count = count + 1;
        n = n / 2;
    }
    return count;
}

void display_array(int nums[], int length) {
  for (int i = 0; i < length; i++) {
    printf("%d\n", nums[i]);
  }
}

int main() {
  int nums[5] = {1, 2, 3, 4, 5};
  /* nums = {1, 2, 3, 4, 5}; */

  /* nums[0] = 1; */
  /* nums[1] = 2; */
  /* nums[2] = 3; */
  /* nums[3] = 4; */
  /* nums[4] = 5; */

  /* printf("%d\n", nums[0]); */
  /* printf("%d\n", nums[1]); */
  /* printf("%d\n", nums[2]); */
  /* printf("%d\n", nums[3]); */
  /* printf("%d\n", nums[4]); */
  /* printf("%d\n", nums[5]); */
       // A       // B   // C
  for (int i = 0; i < 5; i++) { // i = i + 1
    printf("%d\n", nums[i]); // D
  }

  int i = 0;
  while (i < 5) {
    printf("%d\n", nums[i]);
    i++;
  }

  int longer_nums[10] = {1, 2, 3, 4, 5, 6, 7, 8, 9, 10};

  display_array(nums, 5);
  display_array(longer_nums, 10);

  return 0;
}