More Problems

• Implement a stack-based solution for solving the problem of checking if a binary tree contains all valid root-to-leaf paths that alternate between even and odd node values.
• Write a program to simulate a stack-based approach for solving the problem of finding the longest sequence of alternating positive and negative integers in a circular array.
• Create a stack-based system for solving the problem of finding the minimum number of flips required to make a binary string alternating with constraints on the length of each subsequence.
• Design a stack-based algorithm to solve the problem of finding the number of ways to partition an array into subarrays that sum to a given target with constraints on the size of each subarray.
• Implement a stack-based solution for solving the problem of checking if a binary search tree is height-balanced with constraints on node depths and values.
• Write a program to simulate a stack-based approach for solving the problem of finding the minimum number of operations required to convert a binary tree into a valid binary search tree.
• Create a function that uses stacks to solve the problem of determining if two binary search trees contain identical sets of values with constraints on the depth of each tree.
• Design a stack-based approach to solve the problem of finding the shortest path in a weighted graph with multiple cycles and constraints on edge lengths.