Quick-Sort-Based Interview Problems in Java with Optimized Solutions
Problem 1: Kth Largest Element in an Unsorted Array
Goal
Locate the k-th largest value in a integer array that is not pre-sorted.
Example
Input: [3, 2, 1, 5, 6, 4], k = 2
Output: 5
Optimized Java Implementation
import java.util.Random;
public final class KthLargestFinder {
private static final Random RNG = new Random();
public int ...
Posted on Mon, 06 Jul 2026 16:54:25 +0000 by apacheguy