Package g1201_1300.s1299_replace_elements_with_greatest_element_on_right_side

Class Solution

java.lang.Object
g1201_1300.s1299_replace_elements_with_greatest_element_on_right_side.Solution
public class Solution extends java.lang.Object
1299 - Replace Elements with Greatest Element on Right Side.

Easy

Given an array arr, replace every element in that array with the greatest element among the elements to its right, and replace the last element with -1.

After doing so, return the array.

Example 1:

Input: arr = [17,18,5,4,6,1]

Output: [18,6,6,6,1,-1]

Explanation:

  • index 0 –> the greatest element to the right of index 0 is index 1 (18).

  • index 1 –> the greatest element to the right of index 1 is index 4 (6).

  • index 2 –> the greatest element to the right of index 2 is index 4 (6).

  • index 3 –> the greatest element to the right of index 3 is index 4 (6).

  • index 4 –> the greatest element to the right of index 4 is index 5 (1).

  • index 5 –> there are no elements to the right of index 5, so we put -1.

Example 2:

Input: arr = [400]

Output: [-1]

Explanation: There are no elements to the right of index 0.

Constraints:

  • 1 <= arr.length <= 104
  • 1 <= arr[i] <= 105

  • Constructor Summary

    Constructors
    Constructor
    Description
    Solution()
     

  • Method Summary

    Modifier and Type
    Method
    Description
    int[]
    replaceElements(int[] arr)
     

    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

    • replaceElements

      public int[] replaceElements(int[] arr)