Question

How to find the frequency of odd and even numbers in a given matrix with PHP

Answer 1

$m = array(     
         array(1, 0, 2),  
         array(3, 5, 6),  
         array(7, 4, 1)  
     );  
   
$rows = count($m);  
$cols = count($m[0]);  

$even = 0;  
$odd = 0;  

for ($i = 0; $i < $rows; $i++) {  
    for ($j = 0; $j < $cols; $j++) {  
      if ($m[$i][$j] % 2 == 0)  
        $even++;  
      else  
        $odd++;  
    }  
}  
   
echo "The frequency of odd numbers = " . $odd . "\n";  
echo "The frequency of even numbers = " . $even;  
          




/*
run:
  
The frequency of odd numbers = 5
The frequency of even numbers = 4
  
*/

 

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