More Problems

• Write a program to find the next smaller element for each element in an array using a stack.
• Design a function to evaluate an arithmetic expression in prefix notation using a stack.
• Implement a stack to check if a series of stack operations is valid for a given output sequence.
• Write a program to implement the LRU (Least Recently Used) cache using a stack.
• Create a function to reverse the order of words in a sentence using a stack.
• Implement a stack that supports finding the middle element in constant time.
• Write a program to calculate the largest rectangle under the skyline using a stack.
• Design a function to check if a stack sequence is possible given a set of push/pop operations.