Amazon Interview Questions – Data Structures & Algorithms

سرفصل های دوره

Learn top questions asked in Amazon coding rounds

1. Best Time To Buy And Sell A Stock - Arrays

1.1 best time to buy and sell a stock.zip

1. Best Time To Buy And Sell A Stock - Java

2.1 best time to buy a sell a stock.zip

2. Best Time To Buy And Sell A Stock - Javascript

3.1 best time to buy and sell a stock.zip

3. Best Time To Buy And Sell A Stock - C++

4.1 best time to buy and sell a stock.zip

4. Best Time To Buy And Sell A Stock - Python

2. Maximum Sum Subarray - Arrays

1.1 maximum sum subarray.zip

1. Maximum Sum Subarray - Java

2.1 maximum sum subarray.zip

2. Maximum Sum Subarray - Javascript

3.1 maximum sum subarray.zip

3. Maximum Sum Subarray - C++

4.1 maximum sum subarray.zip

4. Maximum Sum Subarray - Python

3. Move Zeroes - Array

1.1 move zeroes.zip

1. Move Zeroes - Java

2.1 move zeroes.zip

2. Move Zeroes - Javascript

3.1 move zeroes.zip

3. Move Zeroes - C++

4.1 move zeroes.zip

4. Move Zeroes - Python

4. Maximum Product Subarray - Arrays

1.1 maximum product subarray.zip

1. Maximum Product Subarray - Java

2.1 maximum product subarray.zip

2. Maximum Product Subarray - Javascript

3.1 maximum product subarray.zip

3. Maximum Product Subarray - C++

4.1 maximum product subarray.zip

4. Maximum Product Subarray - Python

5. Product Of Arrays Except Self - Arrays

1.1 product of array except self.zip

1. Product Of Array Except Self - Java

2.1 product of array except self.zip

2. Product Of Array Except Self - Javascript

3.1 product of array except self.zip

3. Product Of Array Except Self - C++

4.1 product of array except self.zip

4. Product Of Array Except Self - Python

6. Rotate Array - Arrays

1.1 rotate array.zip

1. Rotate Array - Java

2.1 rotate array.zip

2. Rotate Array - Javascript

3.1 rotate array.zip

3. Rotate Array - C++

4.1 rotate array.zip

4. Rotate Array - Python

7. Trapping Rain Water - Arrays

1.1 trapping rain water.zip

1. Trapping Rain Water - Java Solution

2.1 trapping rain water.zip

2. Trapping Rain Water - Javascript Solution

3.1 trapping rain water.zip

3. Trapping Rain Water - C++ Solution

4.1 trapping rain water.zip

4. Trapping Rain Water - Python Solution

8. Majority Element - Sorting

1.1 majority element.zip

1. Majority Element - Java Solution

2.1 majority element.zip

2. Majority Element - Javascript Solution

3.1 majority element.zip

3. Majority Element - C++ Solution

4.1 majority element.zip

4. Majority Element - Python Solution

9. Single Number - Sorting

1.1 single number.zip

1. Single Number - Java Solution

2.1 single number.zip

2. Single Number - Javascript Solution

3.1 single number.zip

3. Single Number - C++ Solution

4.1 single number.zip

4. Single Number - Python Solution

10. Sort Colors - Sorting

1.1 sort colors.zip

1. Sort Colors - Java Solution

2.1 sort colors.zip

2. Sort Colors - Javascript Solution

3.1 sort colors.zip

3. Sort Colors - C++ Solution

4.1 sort colors.zip

4. Sort Colors - Python Solution

11. Find the Duplicate Number - Sorting

1.1 find the duplicate number.zip

1. Find the Duplicate Number - Java Solution

2.1 find the duplicate number.zip

2. Find the Duplicate Number - Javascript Solution

3.1 find the duplicate number.zip

3. Find the Duplicate Number - C++ Solution

4.1 find the duplicate number.zip

4. Find the Duplicate Number - Python Solution

12. Add Two Numbers

1.1 add two numbers.zip

1. Add Two Numbers - Java Solution

2.1 add two numbers.zip

2. Add Two Numbers - Javascript Solution

3.1 add two numbers.zip

3. Add Two Numbers - C++ Solution

4.1 add two numbers.zip

4. Add Two Numbers - Python Solution

13. Find Middle Of Linked List - Linked List

1.1 find middle of the linked list.zip

1. Find Middle Of Linked List - Java Solution

2. Find Middle Of Linked List - Javascript Solution

3.1 find middle of the linked list.zip

3. Find Middle Of Linked List - C++ Solution

4.1 find middle of the linked list.zip

4. Find Middle Of Linked List - Python Solution

14. Intersection Of Two Linked List - Linked List

1.1 intersection of two linked list.zip

1. Intersection Of Two Linked List - Java Solution

2.1 intersection of two linked lists.zip

2. Intersection Of Two Linked List - Javascript Solution

3.1 intersection of two linked list.zip

3. Intersection Of Two Linked List - C++ Solution

4.1 intersection of two linked list.zip

4. Intersection Of Two Linked List - Python Solution

15. Linked List Cycle - Linked List

1.1 linked list cycle.zip

1. Linked List Cycle - Java Solution

2.1 linked list cycle.zip

2. Linked List Cycle - Javascript Solution

3.1 linked list cycle.zip

3. Linked List Cycle - C++ Solution

4.1 linked list cycle.zip

4. Linked List Cycle - Python Solution

16. Merge Two Sorted Lists - Linked List

1. Merge Two Sorted Lists - Java Solution

2.1 merge two sorted lists.zip

2. Merge Two Sorted Lists - Javascript Solution

3.1 merge two sorted list.zip

3. Merge Two Sorted Lists - C++ Solution

4.1 merge two sorted list.zip

4. Merge Two Sorted Lists - Python Solution

17. Palindrome Linked Lists - Linked List

1.1 palindrome linked list.zip

1. Palindrome Linked Lists - Java Solution

2.1 palindrome linked list.zip

2. Palindrome Linked Lists - Javascript Solution

3.1 palindrome linked list.zip

3. Palindrome Linked Lists - C++ Solution

4.1 palindrome linked list.zip

4. Palindrome Linked Lists - Python Solution

18. Reverse Linked List - Linked List

1.1 reverse linked list.zip

1. Reverse Linked List - Java Solution

2.1 reverse linked list.zip

2. Reverse Linked List - Javascript Solution

3.1 reversed linked list.zip

3. Reverse Linked List - C++ Solution

4.1 reversed linked list.zip

4. Reverse Linked List - Python Solution

19. Linked List Cycle II - Linked List

1.1 linked list cycle ii.zip

1. Linked List Cycle II - Java Solution

2.1 linked list cycle ii.zip

2. Linked List Cycle II - Javascript Solution

3.1 linked list cycle ii.zip

3. Linked List Cycle II - C++ Solution

4.1 linked list cycle ii.zip

4. Linked List Cycle II - Python Solution

20. Min Stack - Stacks

1.1 min stack.zip

1. Min Stack - Java Solution

2.1 min stack.zip

2. Min Stack - Javascript Solution

3.1 min stack.zip

3. Min Stack - C++ Solution

4.1 min stack.zip

4. Min Stack - Python Solution

21. Valid Paranthesis - Stacks

1.1 valid paranthesis.zip

1. Valid Paranthesis - Java Solution

2.1 valid paranthesis.zip

2. Valid Paranthesis - Javascript Solution

3.1 valid paranthesis.zip

3. Valid Paranthesis - C++ Solution

4.1 valid paranthesis.zip

4. Valid Paranthesis - Python Solution

22. Merge Intervals - Stacks

1.1 merge intervals.zip

1. Merge Intervals - Java Solution

2.1 merge intervals.zip

2. Merge Intervals - Javascript Solution

3.1 merge intervals.zip

3. Merge Intervals - C++ Solution

4.1 merge intervals.zip

4. Merge Intervals - Python Solution

23. Minimum Add To Make Parantheses Valid - Stacks

1.1 minimum add to make parantheses valid.zip

1. Minimum Add To Make Parantheses Valid - Java Solution

2.1 minimum add to make parantheses valid.zip

2. Minimum Add To Make Parantheses Valid - Javascript Solution

3.1 minimum add to make parantheses valid.zip

3. Minimum Add To Make Parantheses Valid - C++ Solution

4.1 minimum add to make parantheses valid.zip

4. Minimum Add To Make Parantheses Valid - Python Solution

24. Sliding Window Maximum - Queue

1.1 sliding window maximum.zip

1. Sliding Window Maximum - Java Solution

2.1 sliding window maximum.zip

2. Sliding Window Maximum - Javascript Solution

3.1 sliding window maximum.zip

3. Sliding Window Maximum - C++ Solution

4.1 sliding window maximum.zip

4. Sliding Window Maximum - Python Solution

25. Two Sum - Hash Table

1.1 two sum.zip

1. Two Sum - Java Solution

2.1 two sum.zip

2. Two Sum - Javascript Solution

3.1 two sum.zip

3. Two Sum - C++ Solution

4.1 two sum.zip

4. Two Sum - Python Solution

26. Group Anagrams - Hash Table

1.1 group anagrams.zip

1. Group Anagrams - Java Solution

2.1 group anagrams.zip

2. Group Anagrams - Javascript Solution

3.1 group anagrams.zip

3. Group Anagrams - C++ Solution

4. Group Anagrams - Python Solution

27. Three Sum - Hash Table

1.1 three sum.zip

1. Three Sum - Java Solution

2.1 three sum.zip

2. Three Sum - Javascript Solution

3.1 three sum.zip

3. Three Sum - C++ Solution

4.1 three sum.zip

4. Three Sum - Python Solution

28. Search Insert Position - Binary Search

1.1 search insert position.zip

1. Search Insert Position - Java Solution

2.1 search insert position.zip

2. Search Insert Position - Javascript Solution

3.1 search insert position.zip

3. Search Insert Position - C++ Solution

4.1 search insert position.zip

4. Search Insert Position - Python Solution

29. Search In A Rotated Sorted Array - Binary Search

1.1 search in a rotated sorted array.zip

1. Search In A Rotated Sorted Array - Java Solution

2.1 search in a rotated sorted array.zip

2. Search In A Rotated Sorted Array - Javascript Solution

3.1 search in a rotated sorted array.zip

3. Search In A Rotated Sorted Array - C++ Solution

4.1 search in a rotated sorted array.zip

4. Search In A Rotated Sorted Array - Python Solution

30. Two Sum II - Input Array Is Sorted - Binary Search

1.1 two sum ii - input array is sorted.zip

1. Two Sum II - Input Array Is Sorted - Java Solution

2.1 two sum ii input array is sorted.zip

2. Two Sum II - Input Array Is Sorted - Javascript Solution

3.1 two sum ii - input array is sorted.zip

3. Two Sum II - Input Array Is Sorted - C++ Solution

4.1 two sum ii - input array is sorted.zip

4. Two Sum II - Input Array Is Sorted - Python Solution

31. Find First And Last Position Of Element In Sorted Array - Binary Search

1.1 find first and last position of element in sorted array.zip

1. Find First And Last Position Of Element In Sorted Array - Java Solution

2.1 find first and last position of element in sorted array.zip

2. Find First And Last Position Of Element In Sorted Array - Javascript Solution

3.1 find first and last position of element in sorted array.zip

3. Find First And Last Position Of Element In Sorted Array - C++ Solution

4.1 find first and last position of element in sorted array.zip

4. Find First And Last Position Of Element In Sorted Array - Python Solution

32. Magnetic Force Between Two Balls - Binary Search

1.1 magnetic force between two balls.zip

1. Magnetic Force Between Two Balls - Java Solution

2.1 magnetic force between two balls.zip

2. Magnetic Force Between Two Balls - Javascript Solution

3.1 magnetic force between two balls.zip

3. Magnetic Force Between Two Balls - C++ Solution

4.1 magnetic force between two balls.zip

4. Magnetic Force Between Two Balls - Python Solution

33. Binary Tree InOrder Traversal - Trees

1.1 binary tree inorder traversal.zip

1. Binary Tree InOrder Traversal - Java Solution

2.1 binary tree inorder traversal.zip

2. Binary Tree InOrder Traversal - Javascript Solution

3.1 binary tree inorder traversal.zip

3. Binary Tree InOrder Traversal - C++ Solution

4.1 binary tree inorder traversal.zip

4. Binary Tree InOrder Traversal - Python Solution

34. Diameter Of A Binary Tree - Trees

1.1 diameter of a binary tree.zip

1. Diameter Of A Binary Tree - Java Solution

2.1 diameter of a binary tree.zip

2. Diameter Of A Binary Tree - Javascript Solution

3.1 diameter of a binary tree.zip

3. Diameter Of A Binary Tree - C++ Solution

4.1 diameter of a binary tree.zip

4. Diameter Of A Binary Tree - Python Solution

35. Invert Binary Tree - Trees

1.1 invert binary tree.zip

1. Invert Binary Tree - Java Solution

2.1 invert binary tree.zip

2. Invert Binary Tree - Javascript Solution

3.1 invert binary tree.zip

3. Invert Binary Tree - C++ Solution

4.1 invert binary tree.zip

4. Invert Binary Tree - Python Solution

36. Maximum Depth Of A Binary Tree - Trees

1.1 maximum depth of a binary tree.zip

1. Maximum Depth Of A Binary Tree - Java Solution

2.1 maximum depth of a binary tree.zip

2. Maximum Depth Of A Binary Tree - Javascript Solution

3.1 maximum depth of a binary tree.zip

3. Maximum Depth Of A Binary Tree - C++ Solution

4.1 maximum depth of a binary tree.zip

4. Maximum Depth Of A Binary Tree - Python Solution

37. Symmetric Tree - Trees

1.1 symmetric tree.zip

1. Symmetric Tree - Java Solution

2.1 symmetric tree.zip

2. Symmetric Tree - Javascript Solution

3.1 symmetric tree.zip

3. Symmetric Tree - C++ Solution

4.1 symmetric tree.zip

4. Symmetric Tree - Python Solution

38. Binary Tree Level Order Traversal - Trees

1.1 binary tree level order traversal.zip

1. Binary Tree Level Order Traversal - Java Solution

2.1 binary tree level order traversal.zip

2. Binary Tree Level Order Traversal - Javascript Solution

3.1 binary tree level order traversal.zip

3. Binary Tree Level Order Traversal - C++ Solution

4.1 binary tree level order traversal.zip

4. Binary Tree Level Order Traversal - Python Solution

39. Lowest Common Ancestor of a Binary Tree - Trees

1.1 lowest common ancestor of a binary search tree.zip

1. Lowest Common Ancestor of a Binary Tree - Java Solution

2.1 lowest common ancestor of a binary tree.zip

2. Lowest Common Ancestor of a Binary Tree - Javascript Solution

3.1 lowest common ancestor of a binary tree.zip

3. Lowest Common Ancestor of a Binary Tree - C++ Solution

4.1 lowest common ancestor of a binary tree.zip

4. Lowest Common Ancestor of a Binary Tree - Python Solution

40. Path Sum - Trees

1.1 path sum.zip

1. Path Sum - Java Solution

2.1 path sum.zip

2. Path Sum - Javascript Solution

3.1 path sum.zip

3. Path Sum - C++ Solution

4.1 path sum.zip

4. Path Sum - Python Solution

41. Kth Largest Element In An Array - Heaps

1.1 kth largest element in an array.zip

1. Kth Largest Element In An Array - Java Solution

2.1 kth largest element in an array.zip

2. Kth Largest Element In An Array - Javascript Solution

3.1 kth largest element in an array.zip

3. Kth Largest Element In An Array - C++ Solution

4.1 kth largest element in an array.zip

4. Kth Largest Element In An Array - Python Solution

42. Find Median from Data Stream - Heaps

1.1 find median from data stream.zip

1. Find Median from Data Stream - Java Solution

2.1 find median from data stream.zip

2. Find Median from Data Stream - Javascript Solution

3.1 find median from data stream.zip

3. Find Median from Data Stream - C++ Solution

4.1 find median from data stream.zip

4. Find Median from Data Stream - Python Solution

43. Kth Smallest Element In BST - Binary Search Tree

1.1 kth smallest element in bst.zip

1. Kth Smallest Element In BST - Java Solution

2.1 kth smallest element in bst.zip

2. Kth Smallest Element In BST - Javascript Solution

3.1 kth smallest element in bst.zip

3. Kth Smallest Element In BST - C++ Solution

4.1 kth smallest element in bst.zip

4. Kth Smallest Element In BST - Python Solution

44. Climbing Stairs - Dynamic Programming

1.1 climbing stairs.zip

1. Climbing Stairs - Java Solution

2.1 climbing stairs.zip

2. Climbing Stairs - Javascript Solution

3.1 climbing stairs.zip

3. Climbing Stairs - C++ Solution

4.1 climbing stairs.zip

4. Climbing Stairs - Python Solution

45. 0-1 Matrix - Dynamic Programming

1.1 01 matrix.zip

1. 0-1 Matrix - Java Solution

2.1 01 matrix.zip

2. 0-1 Matrix - Javascript Solution

3.1 01 matrix.zip

3. 0-1 Matrix - C++ Solution

4.1 01 matrix.zip

4. 0-1 Matrix - Python Solution

46. Coin Change - Dynamic Programming

1.1 coin change.zip

1. Coin Change - Java Solution

2.1 coin change.zip

2. Coin Change - Javascript Solution

3.1 coin change.zip

3. Coin Change - C++ Solution

4.1 coin change.zip

4. Coin Change - Python Solution

47. House Robber - Dynamic Programming

1.1 house robber.zip

1. House Robber - Java Solution

2.1 house robber.zip

2. House Robber - Javascript Solution

3.1 house robber.zip

3. House Robber - C++ Solution

4.1 house robber.zip

4. House Robber - Python Solution

48. Jump Game - Dynamic Programming

1.1 jump game.zip

1. Jump Game - Java Solution

2.1 jump game.zip

2. Jump Game - Javascript Solution

3.1 jump game.zip

3. Jump Game - C++ Solution

4.1 jump game.zip

4. Jump Game - Python Solution

49. Longest Common Subsequence - Dynamic Programming

1.1 longest common subsequence.zip

1. Longest Common Subsequence - Java Solution

2.1 longest common subsequence.zip

2. Longest Common Subsequence - Javascript Solution

3.1 longest common subsequence.zip

3. Longest Common Subsequence - C++ Solution

4.1 longest common subsequence.zip

4. Longest Common Subsequence - Python Solution

50. Longest Consecutive Sequence - Dynamic Programming

1.1 longest consecutive sequence.zip

1. Longest Consecutive Sequence - Java Solution

2.1 longest consecutive sequence.zip

2. Longest Consecutive Sequence - Javascript Solution

3.1 longest consecutive sequence.zip

3. Longest Consecutive Sequence - C++ Solution

4.1 longest consecutive sequence.zip

4. Longest Consecutive Sequence - Python Solution

51. Longest Increasing Subsequence - Dynamic Programming

1.1 longest increasing subsequence.zip

1. Longest Increasing Subsequence - Java Solution

2.1 longest increasing subsequence.zip

2. Longest Increasing Subsequence - Javascript Solution

3.1 longest increasing subsequence.zip

3. Longest Increasing Subsequence - C++ Solution

4.1 longest increasing subsequence.zip

4. Longest Increasing Subsequence - Python Solution

52. Longest Substring Without Repeating Characters - Dynamic Programming

1.1 longest substring without repeating characters.zip

1. Longest Substring Without Repeating Characters - Java Solution

2.1 longest substring without repeating characters.zip

2. Longest Substring Without Repeating Characters - Javascript Solution

3.1 longest substring without repeating characters.zip

3. Longest Substring Without Repeating Characters - C++ Solution

4.1 longest substring without repeating characters.zip

4. Longest Substring Without Repeating Characters - Python Solution

53. Partition Equal Subset Sum - Dynamic Programming

1.1 partition equal subset sum.zip

1. Partition Equal Subset Sum - Java Solution

2.1 partition equal subset sum.zip

2. Partition Equal Subset Sum - Javascript Solution

3.1 partition equal subset sum.zip

3. Partition Equal Subset Sum - C++ Solution

4.1 partition equal subset sum.zip

4. Partition Equal Subset Sum - Python Solution

54. Target Sum - Dynamic Programming

1.1 target sum.zip

1. Target Sum - Java Solution

2.1 target sum.zip

2. Target Sum - Javascript Solution

3.1 target sum.zip

3. Target Sum - C++ Solution

4.1 target sum.zip

4. Target Sum - Python Solution

55. Flood Fill - Graphs

1.1 flood fill.zip

1. Flood Fill - Java Solution

2.1 flood fill.zip

2. Flood Fill - Javascript Solution

3.1 flood fill.zip

3. Flood Fill - C++ Solution

4.1 flood fill.zip

4. Flood Fill - Python Solution

56. Course Schedule - Graphs

1.1 course schedule.zip

1. Course Schedule - Java Solution

2.1 course schedule.zip

2. Course Schedule - Javascript Solution

3.1 course schedule.zip

3. Course Schedule - C++ Solution

4.1 course schedule.zip

4. Course Schedule - Python Solution

57. Network Delay Time - Graphs

1.1 network delay time.zip

1. Network Delay Time - Java Solution

2.1 network delay time.zip

2. Network Delay Time - Javascript Solution

3.1 network delay time.zip

3. Network Delay Time - C++ Solution

4.1 network delay time.zip

4. Network Delay Time - Python Solution

58. Number Of Islands - Graphs

1.1 number of islands.zip

1. Number Of Islands - Java Solution

2.1 number of islands.zip

2. Number Of Islands - Javascript Solution

3. Number Of Islands - C++ Solution

4.1 number of islands.zip

4. Number Of Islands - Python Solution

59. Surrounded Regions - Graphs

1.1 surrounded region.zip

1. Surrounded Regions - Java Solution

2.1 surrounded regions.zip

2. Surrounded Regions - Javascript Solution

3.1 surrounded region.zip

3. Surrounded Regions - C++ Solution

4.1 surrounded regions.zip

4. Surrounded Regions - Python Solution

60. Combination Sum - Backtracking

1.1 combination sum.zip

1. Combination Sum - Java Solution

2.1 combination sum.zip

2. Combination Sum - Javascript Solution

3.1 combination sum.zip

3. Combination Sum - C++ Solution

4.1 combination sum.zip

4. Combination Sum - Python Solution

61. Subsets - Backtracking

1.1 subsets.zip

1. Subsets - Java Solution

2.1 subsets.zip

2. Subsets - Javascript Solution

3.1 subsets.zip

3. Subsets - C++ Solution

4.1 subsets.zip

4. Subsets - Python Solution

62. Counting Bits - Bit Manipulation

1.1 counting bits.zip

1. Counting Bits - Java Solution

2.1 counting bits.zip

2. Counting Bits - Javascript Solution

3.1 counting bits.zip

3. Counting Bits - C++ Solution

4.1 counting bits.zip

4. Counting Bits - Python Solution

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