Average value of even numbers that are divisible by three

Array Math

62.9% acceptance

Feb 25, 2026

374

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. *

Solution

Rust

Time O(n)

Space O(1)

LeetCode

solution.rs

impl Solution {
  pub fn average_value(nums: Vec<i32>) -> i32 {
    // divisible by 6 (even AND divisible by 3)
    let filtered: Vec<i32> = nums.into_iter().filter(|&x| x % 6 == 0).collect();
    if filtered.is_empty() { return 0; }
    filtered.iter().sum::<i32>() / filtered.len() as i32
  }
}