Crappy Coder

In this video, I solve LeetCode 55: Jump Game using a smart and efficient reverse greedy strategy in JavaScript.

Instead of simulating forward jumps, I walk you through a target-shrinking approach: we move backward through the array, checking if each index can reach the current "target" (the last good position). If we can shrink that target all the way back to index 0, we've confirmed we can jump to the end!

This solution runs in O(n) time with O(1) space and skips all brute force or recursion. Clean, simple, and powerful.

What You’ll Learn:
✅ How to solve Jump Game with reverse traversal
✅ Greedy logic behind target shrinking
✅ Efficient JavaScript implementation
✅ Time and space complexity breakdown

Chapters:
0:00 - Question Breakdown
1: 22 - Solution Explanation
6:55 - JavaScript Code Walkthrough

💬 Want to see the maxReach (forward) version or the DP version? Drop a comment!

#leetcode #jumpgame #javascript #greedyalgorithm #reversegreedy #leetcode55 #codinginterview #algorithms #datastructures

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