Class Solution

  • All Implemented Interfaces:

    
    public final class Solution
    
                        

    1450 - Number of Students Doing Homework at a Given Time.

    Easy

    Given two integer arrays startTime and endTime and given an integer queryTime.

    The ith student started doing their homework at the time startTime[i] and finished it at time endTime[i].

    Return the number of students doing their homework at time queryTime. More formally, return the number of students where queryTime lays in the interval [startTime[i], endTime[i]] inclusive.

    Example 1:

    Input: startTime = 1,2,3, endTime = 3,2,7, queryTime = 4

    Output: 1

    Explanation: We have 3 students where:

    The first student started doing homework at time 1 and finished at time 3 and wasn't doing anything at time 4.

    The second student started doing homework at time 2 and finished at time 2 and also wasn't doing anything at time 4.

    The third student started doing homework at time 3 and finished at time 7 and was the only student doing homework at time 4.

    Example 2:

    Input: startTime = 4, endTime = 4, queryTime = 4

    Output: 1

    Explanation: The only student was doing their homework at the queryTime.

    Constraints:

    • startTime.length == endTime.length

    • 1 <= startTime.length <= 100

    • 1 <= startTime[i] <= endTime[i] <= 1000

    • 1 <= queryTime <= 1000

    • 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 Integer busyStudent(IntArray startTime, IntArray endTime, Integer queryTime)
      • Methods inherited from class java.lang.Object

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