Php Program for Frequencies of even and odd numbers in a matrix
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
PHP
<?php
$MAX = 100;
function freq($ar, $m, $n)
{
$even = 0; $odd = 0;
for($i = 0; $i < $m; ++$i)
{
for ( $j = 0; $j < $n; ++$j)
{
if (($ar[$i][$j] % 2) == 0)
++$even;
else
++$odd;
}
}
echo " Frequency of odd number = "
, $odd,"
";
echo " Frequency of even number = "
, $even;
}
$m = 3; $n = 3;
$array = array(array(1, 2, 3),
array(4, 5, 6),
array(7, 8, 9));
freq($array, $m, $n);
?>
|
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!
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