LeetCode 2668: Find Latest Salaries Solution

Master LeetCode problem 2668 (Find Latest Salaries), a easy challenge, with our optimized solutions in Java, C++, and Python. Explore detailed explanations, test your code in our interactive editor, and prepare for coding interviews.

2668. Find Latest Salaries

Easy

Database

Problem Explanation

Explanation:

To find the latest salaries from a given list of salaries, we can use a HashMap to store the latest salary for each employee. We iterate through the list of salaries and update the HashMap with the latest salary for each employee. Finally, we retrieve the latest salaries from the HashMap.

Create a HashMap to store the latest salary for each employee.
Iterate through the list of salaries.
Update the HashMap with the latest salary for each employee.
Retrieve the latest salaries from the HashMap.

Time Complexity: O(n) where n is the number of salaries in the input list. Space Complexity: O(n) for the HashMap to store the latest salaries.

Solution Code

import java.util.*;

class Solution {
    public Map<Integer, Integer> findLatestSalaries(List<List<Integer>> salaries) {
        Map<Integer, Integer> latestSalaries = new HashMap<>();
        
        for (List<Integer> salary : salaries) {
            int employeeId = salary.get(0);
            int employeeSalary = salary.get(1);
            
            latestSalaries.put(employeeId, employeeSalary);
        }
        
        return latestSalaries;
    }
}

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