More Problems

• Write a program to push numbers into a stack and count how many of them are multiples of 7.
• Create a function to push elements into a stack and pop every second element.
• Write a program to push elements into a stack and remove all elements less than a specified value.
• Implement a function to reverse every k-th element in a stack.
• Write a program to push the elements of a binary trees preorder traversal into a stack.
• Create a function to push numbers into a stack and keep only the even-indexed elements.
• Write a program to push elements into a stack and count how many of them are divisible by 2 and 7.
• Implement a function to reverse the first half of a stack using recursion.