Package g0401_0500.s0436_find_right_interval

Class Solution

  • All Implemented Interfaces:
    
public final class Solution

    436 - Find Right Interval\.

    Medium

    You are given an array of intervals, where <code>intervalsi = start<sub>i</sub>, end<sub>i</sub></code> and each <code>start<sub>i</sub></code> is unique.

    The right interval for an interval i is an interval j such that <code>start<sub>j</sub>>= end<sub>i</sub></code> and <code>start<sub>j</sub></code> is minimized. Note that i may equal j.

    Return an array of right interval indices for each interval i. If no right interval exists for interval i, then put -1 at index i.

    Example 1:

    Input: intervals = \[\[1,2]]

    Output: -1

    Explanation: There is only one interval in the collection, so it outputs -1.

    Example 2:

    Input: intervals = \[\[3,4],2,3,1,2]

    Output: -1,0,1

    Explanation: There is no right interval for 3,4.

    The right interval for 2,3 is 3,4 since start<sub>0</sub> = 3 is the smallest start that is >= end<sub>1</sub> = 3.

    The right interval for 1,2 is 2,3 since start<sub>1</sub> = 2 is the smallest start that is >= end<sub>2</sub> = 2.

    Example 3:

    Input: intervals = \[\[1,4],2,3,3,4]

    Output: -1,2,-1

    Explanation: There is no right interval for 1,4 and 3,4. The right interval for 2,3 is 3,4 since start<sub>2</sub> = 3 is the smallest start that is >= end<sub>1</sub> = 3.

    Constraints:

    • <code>1 <= intervals.length <= 2 * 10<sup>4</sup></code>

    • intervals[i].length == 2

    • <code>-10<sup>6</sup><= start<sub>i</sub><= end<sub>i</sub><= 10<sup>6</sup></code>

    • The start point of each interval is unique.

    • Nested Class Summary

      Nested Classes 
      Modifier and Type Class Description

    • Field Summary

      Fields 
      Modifier and Type Field Description

    • Constructor Summary

      Constructors 
      Constructor Description
      Solution()

    • Enum Constant Summary

      Enum Constants 
      Enum Constant Description

    • Method Summary

      Modifier and Type Method Description
      final IntArray findRightInterval(Array<IntArray> intervals)

      • Methods inherited from class java.lang.Object

        clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait