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You are part of a university admissions office and need to keep track of the kth highest test score from applicants in real-time. This helps to determine cut-off marks for interviews and admissions dynamically as new applicants submit their scores. You are tasked to implement a class which, for a given integer k, maintains a stream of test scores and continuously returns the kth highest test score after a new score has been submitted. More specifically, we are looking for the kth highest score in the sorted list of all scores. Implement the KthLargest class: KthLargest(int k, int[] nums) Initializes the object with the integer k and the stream of test scores nums. int add(int val) Adds a new test score val to the stream and returns the element representing the kth largest element in the pool of test scores so far. Example 1: Input: ["KthLargest", "add", "add", "add", "add", "add"] [[3, [4, 5, 8, 2]], [3], [5], [10], [9], [4]] Output: [null, 4, 5, 5, 8, 8]
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SDE 1

Interviewed at Amazon

3.5★
Jun 29, 2026

You are part of a university admissions office and need to keep track of the kth highest test score from applicants in real-time. This helps to determine cut-off marks for interviews and admissions dynamically as new applicants submit their scores. You are tasked to implement a class which, for a given integer k, maintains a stream of test scores and continuously returns the kth highest test score after a new score has been submitted. More specifically, we are looking for the kth highest score in the sorted list of all scores. Implement the KthLargest class: KthLargest(int k, int[] nums) Initializes the object with the integer k and the stream of test scores nums. int add(int val) Adds a new test score val to the stream and returns the element representing the kth largest element in the pool of test scores so far. Example 1: Input: ["KthLargest", "add", "add", "add", "add", "add"] [[3, [4, 5, 8, 2]], [3], [5], [10], [9], [4]] Output: [null, 4, 5, 5, 8, 8]

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