LeetCode 452. Minimum Number of Arrows to Burst Balloons (用最少数量的箭引爆气球) 题目 链接 https://leetcode.cn/problems/minimum-number-of-arrows-to-burst-balloons/ 问题描述 有一些球形气球贴在一堵用 XY 平面表示的墙面上。墙面上的气球记录在整数数组 points ,其中points[i] = [xstart, xend] ...
minimum-number-of-arrows-to-burst-balloons 题目内容 在二维空间中有许多球形的气球。对于每个气球,提供的输入是水平方向上,气球直径的开始和结束坐标。由于它是水平的,所以纵坐标并不重要,因此只要知道开始和结束的横坐标就足够了。开始坐标总是小于结束坐标。 一支弓箭可以沿着 x 轴从不同点完全垂直地射出。在坐...
区间问题先排序,从排在前面的区间选能一个元素能尽可能能多覆盖其它区间,那只能是end元素,覆盖了所有与该区间所有有交集的区间。把重叠区间跳过后依次类推。 /* * @lc app=leetcode id=452 lang=cpp * * [452] Minimum Number of Arrows to Burst Balloons */ // @lc code=start class Solution { ...
Explanation: The balloons can be burst by 2 arrows: - Shoot an arrow at x = 2, bursting the balloons [1,2] and [2,3]. - Shoot an arrow at x = 4, bursting the balloons [3,4] and [4,5]. 题目大意:有一堆气球,排列在x轴上,列表中的每个元素分别表示其起始位置和结束位置。现在问...
452 Minimum Number of Arrows to Burst Balloons 用最少数量的箭引爆气球 Description: There are some spherical balloons spread in two-dimensional space. For each balloon, provided input is the start and end coordinates of the horizontal diameter. Since it's horizontal, y-coordinates don't matter,...
452. Minimum Number of Arrows to Burst Balloons (https://leetcode.com/problems/minimum-number-of-arrows-to-burst-balloons/description/)HintsSubmissionsDiscussSolution Pick One There are a number of spherical balloons spread in two-dimensional space. For each balloon, provided input is the start an...
452. Minimum Number of Arrows to Burst Balloons There are a number of spherical balloons spread in two-dimensional space. For each balloon, provided input is the start and end coordinates of the horizontal diameter. Since it’s horizontal, y-coordinates don’t matter and hence the x-...
LeetCode 452. Minimum Number of Arrows to Burst Balloons 2019-12-19 11:56 −原题链接在这里:https://leetcode.com/problems/minimum-number-of-arrows-to-burst-balloons/ 题目: There are a number of spherical balloons spread in two-dimension... ...
LeetCode 452. Minimum Number of Arrows to Burst Balloons 2019-12-19 11:56 −原题链接在这里:https://leetcode.com/problems/minimum-number-of-arrows-to-burst-balloons/ 题目: There are a number of spherical balloons spread in two-dimension... ...
Minimum Number of Arrows to Burst Balloons 算法系列博客之Greedy Greedy 贪心算法是一种非常优美的算法,不过贪心算法本身的可行性很多时候会受到一些局限。但是一旦能够找到一种可行的贪心策略,问题的解决将会变得非常高效,因为通常情况下,贪心算法的复杂度是O(n) 本篇博客将运用这种思想来解决leetcode上452号问题 ...