leetcode-836-Rectangle-Overlap

发表于   |  

描述

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:

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

Example 2:

1
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.

分析

根据坐标判断两个长方形是否相交，小学知识？

解决方案1(Java)

1
2
3
4
5
class Solution {
    public boolean isRectangleOverlap(int[] rec1, int[] rec2) {
        return !(rec1[2] <= rec2[0] || rec1[3] <= rec2[1] || rec1[0] >= rec2[2] || rec1[1] >= rec2[3]);
    }
}

解决方案2（Golang）

1
2
3
func isRectangleOverlap(rec1 []int, rec2 []int) bool {
    return !(rec1[2] <= rec2[0] || rec1[3] <= rec2[1] || rec1[0] >= rec2[2] || rec1[1] >= rec2[3])
}

相关问题

题目来源