More Problems

• Implement a function to find the longest sequence of valid parentheses in a given string using a stack.
• Write a program to simulate a stack-based approach for managing task priorities in a task scheduling system.
• Design a stack-based algorithm to solve the problem of finding the maximum product of elements in a sliding window.
• Write a program to implement a stack that supports priority-based operations on elements.
• Create a function to solve the problem of finding the nearest greater element on both sides of each element in an array using a stack.
• Write a program to simulate a stack-based version control system with multiple levels of undo.
• Implement a function to evaluate an arithmetic expression with mixed operators and multiple levels of parentheses using a stack.
• Write a program to reverse every second element in a stack using a second stack.