Skip to content
Related Articles

Related Articles

Javascript Program for Frequencies of even and odd numbers in a matrix

View Discussion
Improve Article
Save Article
Like Article
  • Last Updated : 22 Jun, 2022

Given a matrix of order m*n then the task is to find the frequency of even and odd numbers in matrix 
Examples: 
 

Input : m = 3, n = 3
        { 1, 2, 3 }, 
        { 4, 5, 6 }, 
        { 7, 8, 9 }
Output : Frequency of odd number =  5 
         Frequency of even number = 4


Input :   m = 3, n = 3
         { 10, 11, 12 },
         { 13, 14, 15 },
         { 16, 17, 18 }
Output : Frequency of odd number  =  4 
         Frequency of even number  = 5

 

Javascript




<script>
// Java Script Program to Find the frequency
// of even and odd numbers in a matrix
 
let MAX = 100;
 
// function for calculating frequency
function freq(ar,m,n) {
    let even = 0, odd = 0;
 
    for (let i = 0; i < m; ++i)
    {
        for (let j = 0; j < n; ++j)
        {
             
            
            // even and odd
            if ((ar[i][j] % 2) == 0)
                ++even;
            else
                ++odd;
    }
    }
 
    // print Frequency of numbers
    document.write(" Frequency of odd number =" +
                    odd + " <br>");
    document.write(" Frequency of even number = " +
                    even + "<br>");
}
 
// Driver code
 
    let m = 3, n = 3;
 
    let array = [[1, 2, 3], [4, 5, 6], [7, 8, 9]];
 
    freq(array, m, n);
 
// This code is contributed by sravan kumar G
</script>

Output: 
 

 Frequency of odd number = 5  
 Frequency of even number = 4

Time Complexity: O(m*n)

Auxiliary Space: O(1)

Please refer complete article on Frequencies of even and odd numbers in a matrix for more details!

My Personal Notes arrow_drop_up
Recommended Articles
Page :

Start Your Coding Journey Now!