More Problems

• Write a program to check if a stack contains any duplicate elements.
• Implement a function to push elements into a stack and find the second smallest element.
• Write a program to push numbers into a stack and pop elements until their product exceeds 100.
• Create a function to push elements from an array into a stack and remove elements that are multiples of 5.
• Write a program to reverse the order of elements in a stack in groups of k using recursion.
• Implement a function to check if two stacks are identical in size and content.
• Write a program to push elements into a stack and keep only the elements smaller than the top element.
• Create a function to push the first n square numbers into a stack.