Related Articles

Related Articles

Frequencies of even and odd numbers in a matrix
  • Difficulty Level : Basic
  • Last Updated : 29 May, 2018

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

CPP

filter_none

edit
close

play_arrow

link
brightness_4
code

// C++ Program to Find the frequency
// of even and odd numbers in a matrix
#include<bits/stdc++.h>
using namespace std;
  
#define MAX 100
  
// function for calculating frequency
void freq(int ar[][MAX], int m, int n)
{
    int even = 0, odd = 0;
      
    for (int i = 0; i < m; ++i)
    {
        for (int j = 0; j < n; ++j)
        {
            // modulo by 2 to check
            // even and odd
            if ((ar[i][j] % 2) == 0)
                ++even;
            else
                ++odd;
        }
    }
      
    // print Frequency of numbers
    printf(" Frequency of odd number = %d \n", odd);
    printf(" Frequency of even number = %d \n", even);
}
  
// Driver code
int main()
{
    int m = 3, n = 3;    
      
    int array[][MAX] = { { 1, 2, 3 },
                        { 4, 5, 6 },
                        { 7, 8, 9 } };
  
    freq(array, m, n);
    return 0;
}        

chevron_right


Java

filter_none

edit
close

play_arrow

link
brightness_4
code

// Java Program to Find the frequency
// of even and odd numbers in a matrix
  
class GFG {
static final int MAX = 100;
  
// function for calculating frequency
static void freq(int ar[][], int m, int n) {
    int even = 0, odd = 0;
  
    for (int i = 0; i < m; ++i) 
    {
        for (int j = 0; j < n; ++j)
        {
            // modulo by 2 to check
            // even and odd
            if ((ar[i][j] % 2) == 0)
                ++even;
            else
                ++odd;
    }
    }
  
    // print Frequency of numbers
    System.out.print(" Frequency of odd number =" +
                       odd + " \n");
    System.out.print(" Frequency of even number = " +
                       even + " \n");
}
  
// Driver code
public static void main(String[] args) {
    int m = 3, n = 3;
  
    int array[][] = {{1, 2, 3}, {4, 5, 6}, {7, 8, 9}};
  
    freq(array, m, n);
}
}
// This code is contributed by Anant Agarwal.

chevron_right


Python3

filter_none

edit
close

play_arrow

link
brightness_4
code

# Python Program to Find the frequency
# of even and odd numbers in a matrix
  
MAX=100
   
# Function for calculating frequency
def freq(ar, m, n):
    even = 0
    odd = 0
       
    for i in range(m):
        for j in range(n):
          
            # modulo by 2 to check
            # even and odd
            if ((ar[i][j] % 2) == 0):
                even += 1
            else:
                odd += 1
       
    # print Frequency of numbers
    print(" Frequency of odd number =", odd)
    print(" Frequency of even number =", even)
  
   
# Driver code
m = 3
n = 3    
       
array = [ [ 1, 2, 3 ],
        [ 4, 5, 6 ],
        [ 7, 8, 9 ] ]
   
freq(array, m, n)
  
# This code is contributed
# by Anant Agarwal.

chevron_right


C#

filter_none

edit
close

play_arrow

link
brightness_4
code

// C# Program to Find the frequency
// of even and odd numbers in a matrix
using System;
  
class GFG 
{
    //static int MAX = 100;
      
    // function for calculating frequency
    static void freq(int [,]ar, int m, int n) 
    {
        int even = 0, odd = 0;
      
        for (int i = 0; i < m; ++i) 
        {
            for (int j = 0; j < n; ++j)
            {
                // modulo by 2 to check
                // even and odd
                if ((ar[i, j] % 2) == 0)
                    ++even;
                else
                    ++odd;
        }
        }
      
        // print Frequency of numbers
        Console.WriteLine(" Frequency of odd number =" +
                        odd );
        Console.WriteLine(" Frequency of even number = " +
                        even );
    }
      
    // Driver code
    public static void Main() 
    {
        int m = 3, n = 3;
      
        int [,]array = {{1, 2, 3}, {4, 5, 6}, {7, 8, 9}};
      
        freq(array, m, n);
    }
}
// This code is contributed by vt_m.

chevron_right


PHP

filter_none

edit
close

play_arrow

link
brightness_4
code

<?php
// PHP Program to Find the frequency
// of even and odd numbers in a matrix
$MAX = 100;
  
// function for calculating frequency
function freq($ar, $m, $n)
{
    $even = 0; $odd = 0;
      
    for($i = 0; $i < $m; ++$i)
    {
        for ( $j = 0; $j < $n; ++$j)
        {
            // modulo by 2 to check
            // even and odd
            if (($ar[$i][$j] % 2) == 0)
                ++$even;
            else
                ++$odd;
        }
    }
      
    // print Frequency of numbers
    echo " Frequency of odd number = "
                           , $odd,"\n";
    echo " Frequency of even number = "
                               , $even;
}
  
    // Driver code
    $m = 3; $n = 3; 
    $array = array(array(1, 2, 3),
                   array(4, 5, 6),
                   array(7, 8, 9));
    freq($array, $m, $n);
  
// This code is contributed by anuj_67.
?>

chevron_right



Output:

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

Attention reader! Don’t stop learning now. Get hold of all the important DSA concepts with the DSA Self Paced Course at a student-friendly price and become industry ready.




My Personal Notes arrow_drop_up
Recommended Articles
Page :