More Problems

• Write a program to reverse the digits of all numbers in a stack that are divisible by 9.
• Implement a function to push elements into a stack and count how many of them are prime-indexed.
• Write a program to push elements into a stack and pop the first element that is smaller than the top element.
• Create a function to push the characters of a string into a stack and reverse the order of the vowels.
• Write a program to push numbers into a stack and remove every multiple of 3.
• Implement a function to reverse the order of elements in a stack without using recursion.
• Write a program to push elements into a stack and pop elements in groups of 4.
• Create a function to reverse every second pair of elements in a stack.