# ACM Practice Questions

Are you preparing for the ACM Programming Contest? Do you want to improve your problem-solving skills and enhance your chances of success? Look no further! In this article, we will provide you with a comprehensive list of ACM practice questions that will help you sharpen your programming abilities and get familiar with the types of problems you may encounter in the competition.

The ACM Programming Contest is a renowned annual competition that challenges teams of students to solve complex programming problems within a limited timeframe. Participants are required to think critically, apply algorithmic techniques, and demonstrate their ability to write efficient code. By practicing with ACM-style questions, you can gain valuable experience and develop the necessary skills to excel in the contest.

Whether you are a beginner or an experienced programmer, solving ACM practice questions is an essential part of your preparation. These questions cover various topics such as data structures, algorithms, dynamic programming, graph theory, and more. By solving a wide range of problems, you can improve your problem-solving strategies, learn new algorithms, and strengthen your understanding of the fundamental concepts in computer science.

## See these ACM Practice Questions

- 1. Given an array of integers, find the maximum subarray sum.
- 2. Implement a stack using two queues.
- 3. Write a program to calculate the factorial of a given number.
- 4. Find the longest increasing subsequence in an array.
- 5. Implement a binary search tree and perform various operations like insertion, deletion, and searching.
- 6. Given a string, check if it is a palindrome.
- 7. Implement a graph and perform depth-first search and breadth-first search.
- 8. Write a program to sort an array using the quicksort algorithm.
- 9. Find the shortest path between two nodes in a weighted directed graph.
- 10. Implement a priority queue using a binary heap.
- 11. Given a maze, find the path from the start to the end.
- 12. Find the kth smallest element in an unsorted array.
- 13. Implement a hash table and handle collisions using chaining.
- 14. Given a binary tree, find the diameter of the tree.
- 15. Write a program to reverse a linked list.
- 16. Implement a breadth-first search algorithm to find the shortest path in a maze.
- 17. Given a string, find the longest palindromic substring.
- 18. Implement a stack that supports push, pop, and getMin operations in O(1) time.
- 19. Write a program to find the median of two sorted arrays.
- 20. Given a matrix, find the maximum sum submatrix.
- 21. Implement a binary search algorithm to find the index of a target element in a sorted array.
- 22. Given a linked list, remove the nth node from the end of the list.
- 23. Write a program to check if a binary tree is balanced.
- 24. Implement a queue using a circular array.
- 25. Given a string, find the longest common prefix among a set of strings.
- 26. Implement a binary search tree and perform an in-order traversal.
- 27. Write a program to calculate the power of a number using recursion.
- 28. Find the maximum sum of a subarray with a constraint that no two elements in the subarray should be adjacent.
- 29. Implement a depth-first search algorithm to find the connected components in a graph.
- 30. Given two strings, check if they are anagrams.
- 31. Write a program to find the intersection of two sorted arrays.
- 32. Implement a binary search tree and perform a pre-order traversal.
- 33. Given a linked list, reverse the list in groups of k.
- 34. Find the minimum number of platforms required for a railway station.
- 35. Implement a trie data structure for efficient prefix search.
- 36. Write a program to check if a number is a prime number.
- 37. Find the maximum product subarray in an array.
- 38. Implement a graph and perform topological sorting.
- 39. Given a string, find the length of the longest substring without repeating characters.
- 40. Write a program to check if a binary tree is a binary search tree.

By practicing these ACM-style questions, you will not only enhance your problem-solving skills but also boost your confidence for the ACM Programming Contest. Remember, practice makes perfect, so set aside some time each day to solve these questions and improve your programming abilities. Good luck!