More Problems

• Implement a function to peek at the top element of a stack.
• Write a program to find the size of a stack.
• Create a function to reverse a string using a stack.
• Write a function to check if parentheses in a string are balanced using a stack.
• Create a program to convert an infix expression to a postfix expression using a stack.
• Write a program to evaluate a postfix expression using a stack.
• Implement a function to find the minimum element in a stack.
• Create a stack that supports push, pop, and retrieving the minimum element in constant time.