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Implement stack using queues

easy Solve on LeetCode

Last edited: January 4, 2026

Problem
Follow up
Examples
Solution
Method 1 - 2 Queues with copy (By Making Push Operation costly)
Pseudocode
Code
Complexity
Dry Run
Method 2 - 2 Queues with swapping of queues (By Making Push Operation costly)
Pseudocode
Code
Complexity
Dry Run
Method 3 - 2 Queues (By Making Pop Operation costly)
Pseudocode
Code
Complexity
Dry Run
Method 3 - Using Only 1 Queue 🏆
Pseudocode
Code
Complexity
Dry Run

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design leetcode queue stack

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