LeetCode in Kotlin
2455. Average Value of Even Numbers That Are Divisible by Three
Easy
Given an integer array nums of positive integers, return the average value of all even integers that are divisible by 3.
Note that the average of n elements is the sum of the n elements divided by n and rounded down to the nearest integer.
Example 1:
Input: nums = [1,3,6,10,12,15]
Output: 9
Explanation: 6 and 12 are even numbers that are divisible by 3. (6 + 12) / 2 = 9.
Example 2:
Input: nums = [1,2,4,7,10]
Output: 0
Explanation: There is no single number that satisfies the requirement, so return 0.
Constraints:
1 <= nums.length <= 10001 <= nums[i] <= 1000
Solution
class Solution {
fun averageValue(nums: IntArray): Int {
var count = 0
var sum = 0
for (num in nums) {
if (num % 2 == 0 && num % 3 == 0) {
count++
sum += num
}
}
return if (count == 0) {
0
} else sum / count
}
}