LeetCode 761 | Special Binary String | Recursion + Greedy Sorting | Java | Hard скачать в хорошем качестве

LeetCode 761 | Special Binary String | Recursion + Greedy Sorting | Java | Hard

Today's LeetCode Daily A special binary string has: 1. Equal number of 1s and 0s 2. Every prefix has at least as many 1s as 0s Goal: Rearrange the special substrings to form the lexicographically largest string. Approach Used: Step 1: Traverse the string and maintain a counter. Increase for '1' Decrease for '0' Step 2: Whenever count becomes 0, we found a valid special substring. Step 3: Recursively process the inner substring excluding the outer 1 and 0. Step 4: Wrap it again as: 1 + processed_inner + 0 Step 5: Store all such special substrings in a list. Step 6: Sort the list in descending order to make the final result largest. Step 7: Concatenate all substrings. Key Idea: Special binary strings behave like balanced parentheses. Use divide and conquer + greedy sorting. Time Complexity: O(n log n) approx Space Complexity: O(n) Problem Link: https://leetcode.com/problems/special... Java Solution (GitHub): https://github.com/Amandf/LeetCode-So... #leetcode #leetcodedailychallenge #java #recursion #greedyalgorithm #divideandconquer #dsa #codinginterview