Question

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

Answer 1

const mtrix = [
  [1, 0, 2],
  [3, 5, 6],
  [7, 4, 9]
];
 
const rows = mtrix.length;
const cols = mtrix[0].length;
 
let odd = 0, even = 0;  
          
for (let i = 0; i < rows; i++) {  
      for (let j = 0; j < cols; j++) {  
           if (mtrix[i][j] % 2 == 0)  
                even++;  
           else
                odd++;  
      }  
}  
            
console.log("The frequency of odd numbers = " + odd);  
console.log("The frequency of even numbers = " + even);  
 
   
     
     
/*
run:
 
"The frequency of odd numbers = 5"
"The frequency of even numbers = 4"
     
*/

 

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