目录 题目链接 注意点 解法 小结 题目链接 Merge Intervals - LeetCode 注意点 区间是无序的 每个区间start一定小于end 解法 解法一:首先以start的值从小到大来排序,排完序我们就可以开始合并了.先把第一个区间存入ret,然后从第二个开始遍历所有区间,如果与ret中最后一个区间有重叠就更新,否则就直接存入ret.时间复杂度O(n) /** * Definition for an interval. * struct Interval { * int star…

Question 56. Merge Intervals Solution 题目大意: 一个坐标轴,给你n个范围,把重叠的范围合并,返回合并后的坐标对 思路: 先排序,再遍历判断下一个开始是否在上一个范围内,如果在且结束坐标大于上一个坐标就合并 Java实现: public List<Interval> merge(List<Interval> intervals) { if (intervals == null || intervals.size() == 0) return i…

Given a collection of intervals, merge all overlapping intervals. For example,Given [1,3],[2,6],[8,10],[15,18],return [1,6],[8,10],[15,18]. 题目大意:给定一个组区间,实现一个函数,合并这些区间. 解题思路:首先根据start排序,然后开始循环,判断当前end和下一个的start是否有overlap,没有的话,可以输出当前这个区间,有的话把后一个的end设置为…

Given a set of non-overlapping intervals, insert a new interval into the intervals (merge if necessary). You may assume that the intervals were initially sorted according to their start times. Example 1:Given intervals [1,3],[6,9], insert and merge […

# -*- coding: utf8 -*-'''__author__ = 'dabay.wang@gmail.com' 56: Merge Intervalshttps://oj.leetcode.com/problems/merge-intervals/ Given a collection of intervals, merge all overlapping intervals. For example,Given [1,3],[2,6],[8,10],[15,18],return [1…

Merge IntervalsGiven a collection of intervals, merge all overlapping intervals. For example,Given [1,3],[2,6],[8,10],[15,18],return [1,6],[8,10],[15,18]. SOLUTION 1: 1. 先使用Comparator 的匿名类对intervels进行排序. 2. 把Intervals遍历一次,依次一个一个merge到第1个interval. 把第1…

Interval的合并时比较常见的一类题目,网上的Amazon面经上也有面试这道题的记录.这里以LeetCode上的例题做练习. Merge Intervals Given a collection of intervals, merge all overlapping intervals. For example,Given [1,3],[2,6],[8,10],[15,18],return [1,6],[8,10],[15,18]. /** * Definition for an inter…

Merge Intervals题解 原创文章,拒绝转载 题目来源:https://leetcode.com/problems/merge-intervals/description/ Description Given a collection of intervals, merge all overlapping intervals. Example Given [1,3],[2,6],[8,10],[15,18], return [1,6],[8,10],[15,18]. Solution…

题目链接Merge Intervals /** * Definition for an interval. * public class Interval { * int start; * int end; * Interval() { start = 0; end = 0; } * Interval(int s, int e) { start = s; end = e; } * } * 题目:LeetCode 第56题 Merge Intervals 区间合并给定一个区间的集合,将相邻区间之间…

Merge Intervals Given a collection of intervals, merge all overlapping intervals. For example,Given [1,3],[2,6],[8,10],[15,18],return [1,6],[8,10],[15,18].     先排序,然后循环合并   /** * Definition for an interval. * struct Interval { * int start; * int end;…