Valid boomerang

Array Math Geometry

39.2% acceptance

Feb 25, 2026

462

543

Given an array points where points[i] = [xi, yi] represents a point on the X-Y plane, return true if these points are a boomerang. A boomerang is a set of three points that are all distinct and not in a straight line.

Solution

Rust

Time O(1)

Space O(1)

LeetCode

solution.rs

impl Solution {
  pub fn is_boomerang(points: Vec<Vec<i32>>) -> bool {
    let (dx1, dy1) = (points[1][0]-points[0][0], points[1][1]-points[0][1]);
    let (dx2, dy2) = (points[2][0]-points[0][0], points[2][1]-points[0][1]);
    dx1 * dy2 != dx2 * dy1
  }
}