Package g1001_1100.s1051_height_checker

Class Solution

java.lang.Object
g1001_1100.s1051_height_checker.Solution
public class Solution extends java.lang.Object
1051 - Height Checker.

Easy

A school is trying to take an annual photo of all the students. The students are asked to stand in a single file line in non-decreasing order by height. Let this ordering be represented by the integer array expected where expected[i] is the expected height of the ith student in line.

You are given an integer array heights representing the current order that the students are standing in. Each heights[i] is the height of the ith student in line ( 0-indexed ).

Return the number of indices where heights[i] != expected[i].

Example 1:

Input: heights = [1,1,4,2,1,3]

Output: 3

Explanation:

heights: [1,1,4,2,1,3]

expected: [1,1,1,2,3,4]

Indices 2, 4, and 5 do not match.

Example 2:

Input: heights = [5,1,2,3,4]

Output: 5

Explanation:

heights: [5,1,2,3,4]

expected: [1,2,3,4,5]

All indices do not match.

Example 3:

Input: heights = [1,2,3,4,5]

Output: 0

Explanation:

heights: [1,2,3,4,5]

expected: [1,2,3,4,5]

All indices match.

Constraints:

  • 1 <= heights.length <= 100
  • 1 <= heights[i] <= 100

  • Constructor Summary

    Constructors
    Constructor
    Description
    Solution()
     

  • Method Summary

    Modifier and Type
    Method
    Description
    int
    heightChecker(int[] heights)
     

    Methods inherited from class java.lang.Object

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

  • Constructor Details

    • Solution

      public Solution()

  • Method Details

    • heightChecker

      public int heightChecker(int[] heights)