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#836 - Rectangle Overlap

Easy • View on LeetCode • View on GitHub

Problem Description

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.

Solution

/**
 * @param {number[]} rec1
 * @param {number[]} rec2
 * @return {boolean}
 */
var isRectangleOverlap = function(rec1, rec2) {
  const [x1, y1, x2, y2] = rec1;
  const [a1, b1, a2, b2] = rec2;
  return x1 < a2 && a1 < x2 && y1 < b2 && b1 < y2;
};

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