More Problems

• Design a stack-based approach to solve the problem of finding the longest path in a binary tree with alternating left and right child nodes.
• Implement a stack-based solution for solving the problem of checking if a binary tree contains any duplicate node values with additional constraints on tree structure.
• Write a program to simulate a stack-based approach for solving the problem of finding the minimum number of operations to convert a binary string into a valid palindrome.
• Create a stack-based system for solving the problem of determining if a string is a valid palindrome with additional constraints on character frequency.
• Design a stack-based algorithm to solve the problem of finding the number of distinct subsequences in a string that contain all vowels with constraints on length.
• Write a stack-based solution for solving the problem of finding the number of valid ways to rearrange a binary string into alternating 0s and 1s with constraints on length.
• Design a stack-based algorithm to solve the problem of finding the longest subsequence of alternating positive and negative numbers with constraints on subsequence length.
• Implement a stack-based solution for solving the problem of checking if two binary search trees contain identical sets of elements with constraints on tree depth.