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Amazon
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337 questions
across
3 types
[ INFO ]
types: Coding · Behavioral · System Design
$
cd
./amazon/
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flags:
--difficulty
all
easy
medium
hard
--type
all
Coding
Behavioral
System Design
showing 337/337 questions
$
ls -lt
./coding/
(152)
▶
01
Car Rental Optimization
Mar 13, 2026
[MEDIUM]
[MUST]
[so]
02
Create a Lottery System Based on Weighted Probability
Mar 13, 2026
[MEDIUM]
[MUST]
[so]
03
Leetcode 1. Two Sum
Mar 13, 2026
[MEDIUM]
[MUST]
[so]
04
Leetcode 10. Regular Expression Matching
Mar 13, 2026
[MEDIUM]
[OPTIONAL]
[so]
05
Leetcode 1044. Longest Duplicate Substring
Mar 13, 2026
[MEDIUM]
[MUST]
[so]
06
Leetcode 1091. Shortest Path in Binary Matrix
Mar 13, 2026
[MEDIUM]
[MUST]
[so]
07
Leetcode 112. Path Sum
Mar 13, 2026
[MEDIUM]
[MUST]
[so]
08
Leetcode 113. Path Sum II
Mar 13, 2026
[MEDIUM]
[MUST]
[so]
09
Leetcode 1152. Analyze User Website Visit Pattern
Mar 13, 2026
[MEDIUM]
[MUST]
[so]
10
Leetcode 1168. Optimize Water Distribution in a Village
Mar 13, 2026
[MEDIUM]
[MUST]
[so]
11
Leetcode 1200. Minimum Absolute Difference
Mar 13, 2026
[MEDIUM]
[MUST]
[so]
12
Leetcode 121. Best Time to Buy and Sell Stock
Mar 13, 2026
[MEDIUM]
[MUST]
[so]
13
Leetcode 124. Binary Tree Maximum Path Sum
Mar 13, 2026
[MEDIUM]
[MUST]
[so]
14
Leetcode 127. Word Ladder
Mar 13, 2026
[MEDIUM]
[MUST]
[so]
15
Leetcode 1270. All People Report to the Given Manager
Mar 13, 2026
[MEDIUM]
[OPTIONAL]
[so]
16
Leetcode 128. Longest Consecutive Sequence
Mar 13, 2026
[MEDIUM]
[OPTIONAL]
[so]
17
Leetcode 1306. Jump Game III
Mar 13, 2026
[MEDIUM]
[OPTIONAL]
[so]
18
Leetcode 136. Single Number
Mar 13, 2026
[MEDIUM]
[OPTIONAL]
[so]
19
Leetcode 138. Copy List with Random Pointer
Mar 13, 2026
[MEDIUM]
[MUST]
[so]
20
Leetcode 139. Word Break
Mar 13, 2026
[MEDIUM]
[MUST]
[so]
21
Leetcode 146. LRU Cache
Mar 13, 2026
[MEDIUM]
[MUST]
[so]
22
Leetcode 1472. Design Browser History
Mar 13, 2026
[MEDIUM]
[MUST]
[so]
23
Leetcode 1478. Allocate Mailboxes
Mar 13, 2026
[MEDIUM]
[MUST]
[so]
24
Leetcode 1482. Minimum Number of Days to Make m Bouquets
Mar 13, 2026
[MEDIUM]
[MUST]
[so]
25
Leetcode 1535. Find the Winner of an Array Game
Mar 13, 2026
[MEDIUM]
[OPTIONAL]
[so]
26
Leetcode 1644. Lowest Common Ancestor of a Binary Tree II
Mar 13, 2026
[MEDIUM]
[MUST]
[so]
27
Leetcode 1650. Lowest Common Ancestor of a Binary Tree III
Mar 13, 2026
[MEDIUM]
[MUST]
[so]
28
Leetcode 1691. Maximum Height by Stacking Cuboids
Mar 13, 2026
[MEDIUM]
[OPTIONAL]
[so]
29
Leetcode 17. Letter Combinations of a Phone Number
Mar 13, 2026
[MEDIUM]
[MUST]
[so]
30
Leetcode 177. Nth Highest Salary
Mar 13, 2026
[MEDIUM]
[OPTIONAL]
[so]
31
Leetcode 1912. Design Movie Rental System
Mar 13, 2026
[MEDIUM]
[OPTIONAL]
[so]
32
Leetcode 198. House Robber
Mar 13, 2026
[MEDIUM]
[MUST]
[so]
33
Leetcode 2. Add Two Numbers
Mar 13, 2026
[MEDIUM]
[MUST]
[so]
34
Leetcode 20. Valid Parentheses
Mar 13, 2026
[MEDIUM]
[MUST]
[so]
35
Leetcode 200. Number of Islands
Mar 13, 2026
[MEDIUM]
[MUST]
[so]
36
Leetcode 2018. Check if Word Can Be Placed In Crossword
Mar 13, 2026
[MEDIUM]
[OPTIONAL]
[so]
37
Leetcode 2065. Maximum Path Quality of a Graph
Mar 13, 2026
[MEDIUM]
[OPTIONAL]
[so]
38
Leetcode 207. Course Schedule
Mar 13, 2026
[MEDIUM]
[MUST]
[so]
39
Leetcode 2091. Removing Minimum and Maximum From Array
Mar 13, 2026
[MEDIUM]
[OPTIONAL]
[so]
40
Leetcode 210. Course Schedule II
Mar 13, 2026
[MEDIUM]
[MUST]
[so]
41
Leetcode 212. Word Search II
Mar 13, 2026
[MEDIUM]
[MUST]
[so]
42
Leetcode 213. House Robber II
Mar 13, 2026
[MEDIUM]
[MUST]
[so]
43
Leetcode 2163. Minimum Difference in Sums After Removal of Elements
Mar 13, 2026
[MEDIUM]
[OPTIONAL]
[so]
44
Leetcode 219. Contains Duplicate II
Mar 13, 2026
[MEDIUM]
[MUST]
[so]
45
Leetcode 2192. All Ancestors of a Node in a Directed Acyclic Graph
Mar 13, 2026
[MEDIUM]
[OPTIONAL]
[so]
46
Leetcode 2214. Minimum Health to Beat Game
Mar 13, 2026
[MEDIUM]
[MUST]
[so]
47
Leetcode 222. Count Complete Tree Nodes
Mar 13, 2026
[MEDIUM]
[MUST]
[so]
48
Leetcode 23. Merge k Sorted Lists
Mar 13, 2026
[MEDIUM]
[MUST]
[so]
49
Leetcode 230. Kth Smallest Element in a BST
Mar 13, 2026
[MEDIUM]
[MUST]
[so]
50
Leetcode 236. Lowest Common Ancestor of a Binary Tree
Mar 13, 2026
[MEDIUM]
[MUST]
[so]
51
Leetcode 2374. Node With Highest Edge Score
Mar 13, 2026
[MEDIUM]
[OPTIONAL]
[so]
52
Leetcode 239. Sliding Window Maximum
Mar 13, 2026
[MEDIUM]
[MUST]
[so]
53
Leetcode 2422. Merge Operations to Turn Array Into a Palindrome
Mar 13, 2026
[MEDIUM]
[MUST]
[so]
54
Leetcode 2463. Minimum Total Distance Traveled
Mar 13, 2026
[MEDIUM]
[MUST]
[so]
55
Leetcode 2477. Minimum Fuel Cost to Report to the Capital
Mar 13, 2026
[MEDIUM]
[OPTIONAL]
[so]
56
Leetcode 2492. Minimum Score of a Path Between Two Cities
Mar 13, 2026
[MEDIUM]
[OPTIONAL]
[so]
57
Leetcode 253. Meeting Rooms II
Mar 13, 2026
[MEDIUM]
[MUST]
[so]
58
Leetcode 2663. Lexicographically Smallest Beautiful String
Mar 13, 2026
[MEDIUM]
[OPTIONAL]
[so]
59
Leetcode 272. Closest Binary Search Tree Value II
Mar 13, 2026
[MEDIUM]
[MUST]
[so]
60
Leetcode 273. Integer to English Words
Mar 13, 2026
[MEDIUM]
[MUST]
[so]
61
Leetcode 276. Paint Fence
Mar 13, 2026
[MEDIUM]
[OPTIONAL]
[so]
62
Leetcode 2808. Minimum Seconds to Equalize a Circular Array
Mar 13, 2026
[MEDIUM]
[OPTIONAL]
[so]
63
Leetcode 289. Game of Life
Mar 13, 2026
[MEDIUM]
[MUST]
[so]
64
Leetcode 295. Find Median from Data Stream
Mar 13, 2026
[MEDIUM]
[MUST]
[so]
65
Leetcode 297. Serialize and Deserialize Binary Tree
Mar 13, 2026
[MEDIUM]
[MUST]
[so]
66
Leetcode 31. Next Permutation
Mar 13, 2026
[MEDIUM]
[MUST]
[so]
67
Leetcode 3104. Find Longest Self-Contained Substring
Mar 13, 2026
[MEDIUM]
[MUST]
[so]
68
Leetcode 317. Shortest Distance from All Buildings
Mar 13, 2026
[MEDIUM]
[MUST]
[so]
69
Leetcode 322. Coin Change
Mar 13, 2026
[MEDIUM]
[MUST]
[so]
70
Leetcode 323. Number of Connected Components in an Undirected Graph
Mar 13, 2026
[MEDIUM]
[OPTIONAL]
[so]
71
Leetcode 34. Find First and Last Position of Element in Sorted Array
Mar 13, 2026
[MEDIUM]
[MUST]
[so]
72
Leetcode 347. Top K Frequent Elements
Mar 13, 2026
[MEDIUM]
[MUST]
[so]
73
Leetcode 359. Logger Rate Limiter
Mar 13, 2026
[MEDIUM]
[MUST]
[so]
74
Leetcode 366. Find Leaves of Binary Tree
Mar 13, 2026
[MEDIUM]
[MUST]
[so]
75
Leetcode 378. Kth Smallest Element in a Sorted Matrix
Mar 13, 2026
[MEDIUM]
[MUST]
[so]
76
Leetcode 380. Insert Delete GetRandom O(1)
Mar 13, 2026
[MEDIUM]
[MUST]
[so]
77
Leetcode 399. Evaluate Division
Mar 13, 2026
[MEDIUM]
[OPTIONAL]
[so]
78
Leetcode 402. Remove K Digits
Mar 13, 2026
[MEDIUM]
[MUST]
[so]
79
Leetcode 42. Trapping Rain Water
Mar 13, 2026
[MEDIUM]
[MUST]
[so]
80
Leetcode 430. Flatten a Multilevel Doubly Linked List
Mar 13, 2026
[MEDIUM]
[MUST]
[so]
81
Leetcode 435. Non-overlapping Intervals
Mar 13, 2026
[MEDIUM]
[MUST]
[so]
82
Leetcode 438. Find All Anagrams in a String
Mar 13, 2026
[MEDIUM]
[MUST]
[so]
83
Leetcode 448. Find All Numbers Disappeared in an Array
Mar 13, 2026
[MEDIUM]
[MUST]
[so]
84
Leetcode 45. Jump Game II
Mar 13, 2026
[MEDIUM]
[OPTIONAL]
[so]
85
Leetcode 451. Sort Characters By Frequency
Mar 13, 2026
[MEDIUM]
[MUST]
[so]
86
Leetcode 453. Minimum Moves to Equal Array Elements
Mar 13, 2026
[MEDIUM]
[MUST]
[so]
87
Leetcode 460. LFU Cache
Mar 13, 2026
[MEDIUM]
[MUST]
[so]
88
Leetcode 471. Encode String with Shortest Length
Mar 13, 2026
[MEDIUM]
[MUST]
[so]
89
Leetcode 472. Concatenated Words
Mar 13, 2026
[MEDIUM]
[MUST]
[so]
90
Leetcode 486. Predict the Winner
Mar 13, 2026
[MEDIUM]
[MUST]
[so]
91
Leetcode 49. Group Anagrams
Mar 13, 2026
[MEDIUM]
[MUST]
[so]
92
Leetcode 545. Boundary of Binary Tree
Mar 13, 2026
[MEDIUM]
[MUST]
[so]
93
Leetcode 547. Number of Provinces
Mar 13, 2026
[MEDIUM]
[MUST]
[so]
94
Leetcode 55. Jump Game
Mar 13, 2026
[MEDIUM]
[OPTIONAL]
[so]
95
Leetcode 56. Merge Intervals
Mar 13, 2026
[MEDIUM]
[MUST]
[so]
96
Leetcode 571. Find Median Given Frequency of Numbers
Mar 13, 2026
[MEDIUM]
[MUST]
[so]
97
Leetcode 62. Unique Paths
Mar 13, 2026
[MEDIUM]
[MUST]
[so]
98
Leetcode 68. Text Justification
Mar 13, 2026
[MEDIUM]
[MUST]
[so]
99
Leetcode 695. Max Area of Island
Mar 13, 2026
[MEDIUM]
[MUST]
[so]
100
Leetcode 698. Partition to K Equal Sum Subsets
Mar 13, 2026
[MEDIUM]
[MUST]
[so]
101
Leetcode 704. Binary Search
Mar 13, 2026
[MEDIUM]
[MUST]
[so]
102
Leetcode 735. Asteroid Collision
Mar 13, 2026
[MEDIUM]
[MUST]
[so]
103
Leetcode 75. Sort Colors
Mar 13, 2026
[MEDIUM]
[MUST]
[so]
104
Leetcode 759. Employee Free Time
Mar 13, 2026
[MEDIUM]
[MUST]
[so]
105
Leetcode 76. Minimum Window Substring
Mar 13, 2026
[MEDIUM]
[MUST]
[so]
106
Leetcode 764. Largest Plus Sign
Mar 13, 2026
[MEDIUM]
[MUST]
[so]
107
Leetcode 767. Reorganize String
Mar 13, 2026
[MEDIUM]
[MUST]
[so]
108
Leetcode 773. Sliding Puzzle
Mar 13, 2026
[MEDIUM]
[MUST]
[so]
109
Leetcode 774. Minimize Max Distance to Gas Station
Mar 13, 2026
[MEDIUM]
[MUST]
[so]
110
Leetcode 78. Subsets
Mar 13, 2026
[MEDIUM]
[MUST]
[so]
111
Leetcode 782. Transform to Chessboard
Mar 13, 2026
[MEDIUM]
[MUST]
[so]
112
Leetcode 79. Word Search
Mar 13, 2026
[MEDIUM]
[MUST]
[so]
113
Leetcode 80. Remove Duplicates from Sorted Array II
Mar 13, 2026
[MEDIUM]
[OPTIONAL]
[so]
114
Leetcode 815. Bus Routes
Mar 13, 2026
[MEDIUM]
[MUST]
[so]
115
Leetcode 843. Guess the Word
Mar 13, 2026
[MEDIUM]
[MUST]
[so]
116
Leetcode 844. Backspace String Compare
Mar 13, 2026
[MEDIUM]
[MUST]
[so]
117
Leetcode 863. All Nodes Distance K in Binary Tree
Mar 13, 2026
[MEDIUM]
[MUST]
[so]
118
Leetcode 88. Merge Sorted Array
Mar 13, 2026
[MEDIUM]
[MUST]
[so]
119
Leetcode 912. Sort an Array
Mar 13, 2026
[MEDIUM]
[MUST]
[so]
120
Leetcode 947. Most Stones Removed with Same Row or Column
Mar 13, 2026
[MEDIUM]
[MUST]
[so]
121
Leetcode 973. K Closest Points to Origin
Mar 13, 2026
[MEDIUM]
[MUST]
[so]
122
Leetcode 98. Validate Binary Search Tree
Mar 13, 2026
[MEDIUM]
[OPTIONAL]
[so]
123
Leetcode 981. Time Based Key-Value Store
Mar 13, 2026
[MEDIUM]
[MUST]
[so]
124
Leetcode 990. Satisfiability of Equality Equations
Mar 13, 2026
[MEDIUM]
[MUST]
[so]
125
Leetcode 994. Rotting Oranges
Mar 13, 2026
[MEDIUM]
[MUST]
[so]
126
Lowest Common Parent in Org Chart
Mar 13, 2026
[MEDIUM]
[MUST]
[so]
127
Most Played Songs
Mar 13, 2026
[MEDIUM]
[MUST]
[so]
128
Package Installation Order
Mar 13, 2026
[MEDIUM]
[MUST]
[so]
129
Song Shuffler
Mar 13, 2026
[MEDIUM]
[MUST]
[so]
130
Traffic System
Mar 13, 2026
[MEDIUM]
[MUST]
[so]
131
Maximum Frequency Stack
Jan 12, 2026
[HARD]
[MEDIUM]
[htr]
132
Product of Array Except Self
Jan 12, 2026
[EASY]
[MEDIUM]
[htr]
133
Pacific Atlantic Water Flow
Jan 12, 2026
[MEDIUM]
[HIGH]
[htr]
134
Decode Ways
Jan 12, 2026
[MEDIUM]
[HIGH]
[htr]
135
Special Behavior Patterns (Sliding Window)
Jan 12, 2026
[MEDIUM]
[MEDIUM]
[htr]
136
Maximum and Minimum Median of Subsequences
Jan 12, 2026
[MEDIUM]
[MEDIUM]
[htr]
137
Minimum Connection Cost
Jan 12, 2026
[MEDIUM]
[MEDIUM]
[htr]
138
Maximum Credits from Warehouse Dispatch
Jan 12, 2026
[MEDIUM]
[MEDIUM]
[htr]
139
Minimum Storage Cost
Jan 12, 2026
[HARD]
[MEDIUM]
[htr]
140
Minimum Operations to Unbias Datasets
Jan 12, 2026
[MEDIUM]
[MEDIUM]
[htr]
141
Data Distribution Between Regions
Jan 12, 2026
[MEDIUM]
[HIGH]
[htr]
142
Maximum System Memory Capacity
Jan 12, 2026
[MEDIUM]
[HIGH]
[htr]
143
Genome Mutation Time
Jan 12, 2026
[MEDIUM]
[HIGH]
[htr]
144
Maximum Count of Target After One Operation
Jan 12, 2026
[MEDIUM]
[HIGH]
[htr]
145
Optimize Box IDs (Lexicographically Minimal String)
Jan 12, 2026
[MEDIUM]
[HIGH]
[htr]
146
Password Irrecoverability Time
Jan 12, 2026
[MEDIUM]
[HIGH]
[htr]
147
Minimum Machines to Maintain Efficiency
Jan 12, 2026
[MEDIUM]
[HIGH]
[htr]
148
Longest Substring Without Repeating Characters
Jan 12, 2026
[MEDIUM]
[MEDIUM]
[htr]
149
Rotting Oranges
Jan 12, 2026
[MEDIUM]
[HIGH]
[htr]
150
Max Consecutive Ones III
Jan 12, 2026
[MEDIUM]
[HIGH]
[htr]
151
Jump Game
Jan 12, 2026
[MEDIUM]
[MEDIUM]
[htr]
152
Rate Limiter
Jan 10, 2026
[MEDIUM]
[MEDIUM]
[htr]
$
ls -lt
./behavioral/
(100)
▶
$
ls -lt
./system_design/
(85)
▶
user@intervues:~/amazon$