Leetcode 836 - Rectangle Overlap

Note:

  • Project both rectangles to x-axios and y-axios.
  • img
  • It’s easier to get when they don’t overlap.
  • Reverse the bool.

Question:

An axis-aligned rectangle is represented as a list [x1, y1, x2, y2], where (x1, y1) is the coordinate of its bottom-left corner, and (x2, y2) is the coordinate of its top-right corner. Its top and bottom edges are parallel to the X-axis, and its left and right edges are parallel to the Y-axis.

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 rec1 and rec2, return true if they overlap, otherwise return false.

Example:

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

Code:

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/**
* @param {number[]} rec1
* @param {number[]} rec2
* @return {boolean}
*/
var isRectangleOverlap = function(rec1, rec2) {
const xOverlap = !(rec1[2] <= rec2[0] || rec2[2] <= rec1[0]);
const yOverlap = !(rec1[1] >= rec2[3] || rec1[3] <= rec2[1]);
return xOverlap && yOverlap;
};