4Sum || Arsh Goyal DSA Sheet Q14 || Arrays || Leetcode 18 || Meta || Google || Amazon || Salesforce

Опубликовано: 15 Июль 2026
на канале: DSA Zindabad
24
4

Timestamps :
Problem Discussion : 00:00
Brute Force Approach : 03:31
Time and Space Complexity of Brute Force Approach : 06:47
Optimized Approach and Dry Run : 07:42
Code : 16:01
Time and Space Complexity of Optimized Approach : 21:41


Time Complexity : O(N*N*N)
Space Complexity : O(1)

2Sum :    • Two Sum || Arsh Goyal DSA Sheet Q8 || Arra...  
3Sum :    • 3Sum || Arsh Goyal DSA Sheet Q13 || Arrays...  

Problem Link : https://leetcode.com/problems/4sum/

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4Sum Solution
4Sum Leetcode
4Sum C++