Solution: Implement Two Stacks Using One List
Explore how to design and implement two stacks within a single list data structure in Python. Understand push and pop operations for both stacks using two pointers without resizing the list, ensuring efficient in-place operations with O(1) time complexity. This lesson helps you grasp practical stack management techniques essential for coding interviews.
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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 integervalueand inserts it into the first stack.push2(value): Takes an integervalueand inserts it into the second stack.pop1(): Removes the top element from the first stack and returns it.pop2(): Removes the top element from the second stack and returns it.
Note: Perform all operations in-place without resizing the underlying list, maintaining a fixed size throughout.
Constraints:
list.length...