Saturday, April 9, 2022

1295. Find Numbers with Even Number of Digits

 Given an array nums of integers, return how many of them contain an even number of digits.

 

Example 1:

Input: nums = [12,345,2,6,7896]
Output: 2
Explanation: 
12 contains 2 digits (even number of digits). 
345 contains 3 digits (odd number of digits). 
2 contains 1 digit (odd number of digits). 
6 contains 1 digit (odd number of digits). 
7896 contains 4 digits (even number of digits). 
Therefore only 12 and 7896 contain an even number of digits.

Example 2:

Input: nums = [555,901,482,1771]
Output: 1 
Explanation: 
Only 1771 contains an even number of digits.

 

Constraints:

  • 1 <= nums.length <= 500
  • 1 <= nums[i] <= 105
In JS:

var findNumbers = function(nums) {
    let count = 0;
    for(let i=0; i<nums.length; i++){
      let value = nums[i].toString();
      if(value.length % 2 == 0) count++;
    }
    return count;
};

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