C++ Exercises: Count even number of elements in a given array of integers

C++ Basic Algorithm: Exercise-98 with Solution

Write a C++ program to count even number of elements in a given array of integers.

Sample Solution:

C++ Code :

#include <iostream>
using namespace std;

static int test(int nums[], int arr_length)
          {
            int evens = 0;

            for (int i = 0; i < arr_length; i++)
            {
                if (nums[i] % 2 == 0) evens++;
            }
            return evens;
          }    
               
int main() 
 {  
  int nums1[] = {1, 5, 7, 9, 10, 12};
  int arr_length = sizeof(nums1) / sizeof(nums1[0]);	
  cout << test(nums1, arr_length) << endl; 
  int nums2[] = {0, 2, 4, 6, 8, 10};
  arr_length = sizeof(nums2) / sizeof(nums2[0]);	
  cout << test(nums2, arr_length) << endl;  
  return 0;    
}

Sample Output:

2
6

Pictorial Presentation:

Flowchart:

C++ Code Editor:

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