Mirror distance of an integer

Math

87.5% acceptance

Feb 25, 2026

You are given an integer n. Define its mirror distance as: abs(n - reverse(n)) where reverse(n) is the integer formed by reversing the digits of n. Return an integer denoting the mirror distance of n. abs(x) denotes the absolute value of x.

Solution

Rust

Time O(1)

Space O(1)

LeetCode

solution.rs

impl Solution {
  pub fn mirror_distance(n: i32) -> i32 {
    let rev: i32 = n.to_string().chars().rev().collect::<String>().parse().unwrap();
    (n - rev).abs()
  }
}