Count Commas in Range II | LeetCode 3871 | Java Explained

In this video, we solve LeetCode 3871: Count Commas in Range II using a range-grouping approach in Java. We cover: ✅ Grouping numbers by their comma count ✅ Counting numbers in each range ✅ Calculating each group’s contribution ✅ Avoiding iteration from 1 to n ✅ Time and space complexity Problem link: https://leetcode.com/problems/count-c... Time Complexity: O(log n) Space Complexity: O(1) #LeetCode #Java #DSA #CodingInterview