Binary Subarrays With Sum 💡 | Sliding Window Explained in Telugu | DSA L39 🔥 скачать в хорошем качестве

Binary Subarrays With Sum 💡 | Sliding Window Explained in Telugu | DSA L39 🔥

Welcome to Lecture 39 of the DSA Series in Telugu! 💻🔥 In this video, we solve an important counting problem using Sliding Window: Binary Subarrays With Sum. Since this array contains only 0s and 1s, we can solve this problem efficiently using a Sliding Window – At Most technique, without using Prefix Sum. 👉 The Prefix Sum approach will be covered later as a general solution. You are given a binary array and an integer goal. Your task is to count the number of non-empty subarrays whose sum equals the given goal. Sliding Window counting technique At Most K subarrays logic Why binary arrays make Sliding Window possible How to calculate exact sum using At Most goal minus At Most goal minus one Step-by-step dry run Time and Space Complexity Common mistakes beginners make 🧠 Key Teaching Formula (Say This Clearly) Number of subarrays with sum = goal = subarrays with sum at most goal − subarrays with sum at most goal minus one This is the core Sliding Window insight. binary subarrays with sum telugu sliding window binary subarray telugu count subarrays sliding window telugu binary array sliding window telugu subarray sum equals goal telugu sliding window counting problems telugu dsa sliding window telugu telugu dsa series coding interview array problems telugu leetcode binary subarrays telugu #dsaintelugu #telugucoding #programmingintelugu #array #arrayproblems #slidingwindow #algorithms #datastructures