LeetCode Problem 3859 | Count Subarrays With K Distinct Integers

LeetCode Solution (C++) — Count Subarrays With K Distinct Integers In this video, Anirudh explains how to solve “Count Subarrays With K Distinct Integers” on LeetCode using an optimized sliding window approach. This problem is a classic interview-style pattern for US tech roles and online assessments, combining two-pointer techniques with frequency tracking. What you will learn • How to use the sliding window technique to count valid subarrays • How to convert the problem into counting “at most K” distinct elements • How to efficiently maintain a frequency map • C++ implementation with O(n) time complexity Problem link https://leetcode.com/problems/count-subarrays-with-k-distinct-integers/ Keywords (US interview prep) LeetCode, coding interview, software engineer interview, US tech interviews, online assessment, arrays, sliding window, two pointers, hash map, distinct elements, subarrays, C++ solution, time complexity, edge cases, interview explanation Tags #LeetCode #CodingInterview #InterviewPrep #SoftwareEngineering #OnlineAssessment #Algorithms #DataStructures #Arrays #SlidingWindow #HashMap #CPlusPlus #Cplusplus #TechJobs #USTechJobs