Topic: stack-problem / Level: advanced

• 2601. Design a stack-based algorithm to solve the problem of determining if a given binary tree is a height-balanced AVL tree.
• 2602. Implement a stack-based solution for solving the problem of finding the longest path in a binary matrix with obstacles.
• 2603. Write a program to simulate a stack-based approach for solving the problem of finding the minimum number of flips required to make a binary string alternating.
• 2604. Create a function that uses stacks to solve the problem of finding the maximum sum of elements in an array that are divisible by k.
• 2605. Design a stack-based approach to solve the problem of finding the shortest path in a maze with weighted edges and multiple exits.
• 2606. Implement a stack-based solution for solving the problem of determining if two binary search trees contain the same set of elements.
• 2607. Write a program to simulate a stack-based approach for solving the problem of finding the maximum sum of non-overlapping subarrays in a circular array.
• 2608. Create a stack-based system for solving the problem of finding the number of valid sequences of parentheses that can be formed with a given length.
• 2609. Design a stack-based algorithm to solve the problem of checking if a binary tree is symmetric without using recursion.
• 2610. Implement a stack-based solution for solving the problem of finding the longest common subsequence between two strings.
• 2611. Write a program to simulate a stack-based approach for solving the problem of finding the minimum number of edges to remove to make a graph acyclic.
• 2612. Create a function that uses stacks to solve the problem of determining if a given string can be rearranged into a valid palindrome with constraints on character swaps.
• 2613. Design a stack-based approach to solve the problem of finding the longest subsequence in an array with alternating positive and negative numbers.
• 2614. Implement a stack-based solution for solving the problem of finding the number of distinct paths in a graph with exactly k edges.
• 2615. Write a program to simulate a stack-based approach for solving the problem of finding the maximum sum of two non-overlapping subarrays in a binary array.
• 2616. Create a stack-based system for solving the problem of finding the minimum cost to connect all points in a graph with weighted edges.
• 2617. Design a stack-based algorithm to solve the problem of determining if a binary tree contains a root-to-leaf path with a given sum.
• 2618. Implement a stack-based solution for solving the problem of checking if two strings are rotations of each other.
• 2619. Write a program to simulate a stack-based approach for solving the problem of finding the minimum number of operations to convert one string into another.
• 2620. Create a function that uses stacks to solve the problem of finding the number of ways to partition a set into two subsets with equal sum.
• 2621. 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.
• 2622. Implement a stack-based solution for solving the problem of determining if a directed graph contains any strongly connected components.
• 2623. Write a program to simulate a stack-based approach for solving the problem of finding the maximum product of non-overlapping subarrays in a given array.
• 2624. Create a stack-based system for solving the problem of finding the minimum number of operations to make an array strictly increasing.
• 2625. Design a stack-based algorithm to solve the problem of finding the longest increasing subsequence in a string with constraints on the number of swaps allowed.
• 2626. Implement a stack-based solution for solving the problem of determining if a binary tree is a valid binary search tree with constraints on the node values.
• 2627. Write a program to simulate a stack-based approach for solving the problem of finding the maximum number of distinct palindromic substrings in a binary string.
• 2628. Create a function that uses stacks to solve the problem of finding the minimum number of cuts to partition a string into valid palindromic substrings.
• 2629. Design a stack-based approach to solve the problem of finding the number of ways to rearrange a string into a valid palindrome with limited swaps.
• 2630. Implement a stack-based solution for solving the problem of determining if two graphs are isomorphic with additional constraints on the node degrees.
• 2631. Write a program to simulate a stack-based approach for solving the problem of finding the longest path in a directed acyclic graph.
• 2632. Create a stack-based system for solving the problem of finding the minimum number of flips required to make a binary string a palindrome.
• 2633. Design a stack-based algorithm to solve the problem of determining if two binary trees are structurally identical with additional constraints on the node values.
• 2634. Implement a stack-based solution for solving the problem of finding the number of distinct subsequences of a given length in a string.
• 2635. Write a program to simulate a stack-based approach for solving the problem of finding the maximum number of valid parentheses sequences in a string.
• 2636. Create a function that uses stacks to solve the problem of determining if a graph is bipartite with constraints on the edge weights.
• 2637. Design a stack-based approach to solve the problem of finding the maximum product of non-overlapping subarrays with constraints on the subarray lengths.
• 2638. Implement a stack-based solution for solving the problem of checking if a binary tree contains a valid path with alternating even and odd node values.
• 2639. Write a program to simulate a stack-based approach for solving the problem of finding the number of ways to partition an array into subarrays of equal sum.
• 2640. Create a stack-based system for solving the problem of finding the longest path in a graph with weighted edges and cycles.
• 2641. Design a stack-based algorithm to solve the problem of finding the minimum number of operations to convert a binary tree into a valid binary search tree.
• 2642. Implement a stack-based solution for solving the problem of determining if two strings are permutations of each other with at most one allowed swap.
• 2643. Write a program to simulate a stack-based approach for solving the problem of finding the number of ways to arrange a string into a valid palindrome with constraints on character frequencies.
• 2644. Create a function that uses stacks to solve the problem of finding the maximum sum of elements in an array that can be split into subarrays with equal sum.
• 2645. Design a stack-based approach to solve the problem of finding the longest increasing subsequence in a circular array with constraints on the number of swaps allowed.
• 2646. Implement a stack-based solution for solving the problem of determining if a binary tree contains a valid path that sums to a given value with constraints on the node values.
• 2647. Write a program to simulate a stack-based approach for solving the problem of finding the maximum number of valid palindrome partitions in a string.
• 2648. Create a stack-based system for solving the problem of finding the minimum number of flips required to convert a binary matrix into a matrix with alternating row values.
• 2649. Design a stack-based algorithm to solve the problem of finding the number of valid parentheses substrings in a string with constraints on the substring lengths.
• 2650. Write a stack-based solution for solving the problem of determining if a graph contains any articulation points.

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