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Solution: Implement Two Stacks Using One Array

Understand how to design and implement two separate stacks using a single fixed-size array in Java. This lesson guides you through managing two pointers to enable push and pop operations for both stacks without resizing the array, achieving efficient O(1) time complexity.

Statement

Design a data structure TwoStacks, that represents two stacks using a single list, where both stacks share the same list for storing elements.

The following operations must be supported:

  • push1(value): Takes an integer value and inserts it into the first stack.

  • push2(value): Takes an integer value ...