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Stack / Design

1 problems • Practice on LeetCode to earn credits

About This Pattern

Master the Stack / Design pattern by practicing these problems organized by difficulty.Focus on the Key Signals - these are the indicators that tell you when to use this pattern.

Easy (1)

Implement Queue using Stacks

Implement a FIFO queue using only two stacks.

Key Signals:

Data structure designAmortized operationsTwo stacks