Example: Count Even and Odd Elements in C

// Count Even and Odd Elements
#include <stdio.h>

int main() {
    // Step 1: Declare and initialize an array of integers.
    int numbers[] = {12, 7, 24, 3, 10, 5, 8, 15, 20};
    int size = sizeof(numbers) / sizeof(numbers[0]); // Calculate array size

    // Step 2: Initialize counters for even and odd numbers.
    int even_count = 0;
    int odd_count = 0;

    // Step 3: Iterate through the array elements.
    printf("Array elements: ");
    for (int i = 0; i < size; i++) {
        printf("%d ", numbers[i]);
        // Step 4: Check if the current element is even or odd using the modulo operator.
        if (numbers[i] % 2 == 0) {
            even_count++; // Increment even counter if remainder is 0
        } else {
            odd_count++;  // Increment odd counter if remainder is not 0
        }
    }
    printf("\n");

    // Step 5: Print the final counts.
    printf("Number of even elements: %d\n", even_count);
    printf("Number of odd elements: %d\n", odd_count);

    return 0;
}