Solution: Implement Two Stacks Using One Array
Understand how to implement two stacks sharing one fixed-size array with separate pointers for each stack. Discover the push and pop operations for both stacks, handling overflow and underflow without resizing the array. Learn the constant time complexity gains and how to manage space efficiently.
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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...