Rectangle Overlap

Description

A rectangle is represented as a list [x1, y1, x2, y2], where (x1, y1) are the coordinates of its bottom-left corner, and (x2, y2) are the coordinates of its top-right corner.

Two rectangles overlap if the area of their intersection is positive.  To be clear, two rectangles that only touch at the corner or edges do not overlap.

Given two (axis-aligned) rectangles, return whether they overlap.

Example 1:

Input: rec1 = [0,0,2,2], rec2 = [1,1,3,3]
Output: true

Example 2:

Input: rec1 = [0,0,1,1], rec2 = [1,0,2,1]
Output: false

Notes:

1. Both rectangles rec1 and rec2 are lists of 4 integers.
2. All coordinates in rectangles will be between -10^9 and 10^9.

Solution(javascript)

/*
 * @lc app=leetcode id=836 lang=javascript
 *
 * [836] Rectangle Overlap
 */

// @lc code=start
/**
 * @param {number[]} rec1
 * @param {number[]} rec2
 * @return {boolean}
 */
const isRectangleOverlap = function (rec1, rec2) {
  const [A, B, C, D] = rec1
  const [E, F, G, H] = rec2
  if (E >= C || G <= A || F >= D || H <= B) { // no overlapping
    return false
  }
  return true
}
// @lc code=end