Next Greater Numerically Balanced Number | 3 Approaches | Leetcode 2048 | codestorywithMIK
Автор: codestorywithMIK
Загружено: 2025-10-23
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This is the 23rd Video of our Playlist "HashMap/HashSet : Popular Interview Problems" by codestorywithMIK
Today we will be solving a simple problem based on numbers and hashmaps - Next Greater Numerically Balanced Number | 3 Approaches | Leetcode 2048 | codestorywithMIK
I will explain the intuition so easily that you will never forget and start seeing this as cakewalk EASYYY.
We will do live coding after explanation and see if we are able to pass all the test cases.
Also, please note that my Github solution link below contains both C++ as well as JAVA code.
Problem Name : Next Greater Numerically Balanced Number | 3 Approaches | Leetcode 2048 | codestorywithMIK
Company Tags : Adobe
My solutions on Github(C++ & JAVA) : https://github.com/MAZHARMIK/Intervie...
Leetcode Link : https://leetcode.com/problems/next-gr...
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Video Summary :
Approach 1 (Simulation):
Brute-force through all numbers greater than n and check if each is “balanced” by counting digit frequencies. Simple but slower since it simulates every candidate up to the limit.
Approach 2 (Precomputed List + Binary Search):
Prestore all balanced numbers in sorted order, then use binary search to find the smallest number greater than n. Extremely fast since it avoids computation during runtime.
Approach 3 (Backtracking):
Generate potential balanced numbers by recursively building valid digit combinations based on frequency rules. More efficient than brute-force and can dynamically construct valid numbers.
✨ Timelines✨
00:00 Introduction
00:12 Motivation
00:50 Problem Explanation
02:20 Thought Process + Approach 1
08:40 Coding Approach 1
11:26 Approach 2 Shortcut Trick
15:40 Approach 3
31:11 Coding it up
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