More Problems

• Implement a function to find the maximum depth of nested parentheses in a string using a stack.
• Write a program to push elements into a stack and find the next greater element in a circular array.
• Create a function to reverse the elements of a stack recursively, leaving every second element in place.
• Write a program to simulate a text editors undo/redo functionality with multiple levels of undo.
• Implement a function to reverse every fourth element in a stack using recursion.
• Write a program to find the minimum area of a rectangle formed under a histogram using a stack.
• Create a function to simulate a ticketing system where customers can cancel and reorder their tickets using stacks.
• Write a program to implement a stack-based approach to solve the stock span problem.