[Leedcode 57] Merge intervals

Source: Internet
Author: User

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 a interval. * public class Interval {* int start; * int end; * Interval () {start = 0; end = 0; } * Interval (int s, int e) {start = s; end = e;} }*/ Public classSolution { PublicList<interval> Merge (list<interval>intervals) {        //With the same idea as insert Interval, but the first to sort out, using the Java collections.sort (list<interval> List, comparator< Super interval> C)//I need to implement a comparator compare method .//pay attention to the way compare is implemented!! //because it is already queued and is traversed from the beginning, there is no case of the later traversal before temp, so the comment section is optionalList<interval> res=NewArraylist<interval>(); if(Intervals.size () <1)returnRes; Collections.sort (intervals,NewIntervalcom ());///Interval Temp=intervals.get (0);  for(intI=1;i<intervals.size (); i++) {Interval cur=Intervals.get (i); /*if (cur.end<temp.start) {//res.add (cur); }else{*/                if(cur.start>temp.end)                    {Res.add (temp); Temp=cur; }Else{                    intstart=math.min (Temp.start,cur.start); intEnd=Math.max (temp.end,cur.end); Temp=NewInterval (start,end); }            //}} res.add (temp); returnRes; }     Public classIntervalcomImplementscomparator<interval>{////         Public intCompare (Interval o1,interval O2) {returno1.start-O2.start; }    }}

[Leedcode] Merge intervals

Contact Us

The content source of this page is from Internet, which doesn't represent Alibaba Cloud's opinion; products and services mentioned on that page don't have any relationship with Alibaba Cloud. If the content of the page makes you feel confusing, please write us an email, we will handle the problem within 5 days after receiving your email.

If you find any instances of plagiarism from the community, please send an email to: info-contact@alibabacloud.com and provide relevant evidence. A staff member will contact you within 5 working days.

A Free Trial That Lets You Build Big!

Start building with 50+ products and up to 12 months usage for Elastic Compute Service

  • Sales Support

    1 on 1 presale consultation

  • After-Sales Support

    24/7 Technical Support 6 Free Tickets per Quarter Faster Response

  • Alibaba Cloud offers highly flexible support services tailored to meet your exact needs.