FAANG Top 50

50 most frequently asked problems at FAANG companies.

50 道題目

#	題目	難度	Rating
1	1. Two Sum	Easy	1116
2	20. Valid Parentheses	Easy	1211
3	21. Merge Two Sorted Lists	Easy	1168
4	70. Climbing Stairs	Easy	1232
5	121. Best Time to Buy and Sell Stock	Easy	1487
6	141. Linked List Cycle	Easy	1302
7	206. Reverse Linked List	Easy	1186
8	2. Add Two Numbers	Medium	1395
9	3. Longest Substring Without Repeating Characters	Medium	1533
10	5. Longest Palindromic Substring	Medium	1581
11	11. Container With Most Water	Medium	1704
12	15. 3Sum	Medium	1711
13	17. Letter Combinations of a Phone Number	Medium	1460
14	22. Generate Parentheses	Medium	1648
15	33. Search in Rotated Sorted Array	Medium	1625
16	46. Permutations	Medium	1519
17	48. Rotate Image	Medium	1407
18	49. Group Anagrams	Medium	1474
19	53. Maximum Subarray	Medium	1409
20	56. Merge Intervals	Medium	1551
21	73. Set Matrix Zeroes	Medium	1390
22	78. Subsets	Medium	1416
23	98. Validate Binary Search Tree	Medium	1490
24	102. Binary Tree Level Order Traversal	Medium	1308
25	128. Longest Consecutive Sequence	Medium	1680
26	133. Clone Graph	Medium	1521
27	139. Word Break	Medium	1673
28	146. LRU Cache	Medium	1793
29	153. Find Minimum in Rotated Sorted Array	Medium	1485
30	200. Number of Islands	Medium	1580
31	207. Course Schedule	Medium	1656
32	208. Implement Trie (Prefix Tree)	Medium	1543
33	215. Kth Largest Element in an Array	Medium	1508
34	238. Product of Array Except Self	Medium	1480
35	253. Meeting Rooms II	Medium	1582
36	279. Perfect Squares	Medium	1529
37	300. Longest Increasing Subsequence	Medium	1666
38	322. Coin Change	Medium	1684
39	347. Top K Frequent Elements	Medium	1540
40	417. Pacific Atlantic Water Flow	Medium	1707
41	4. Median of Two Sorted Arrays	Hard	2028
42	23. Merge K Sorted Lists	Hard	1893
43	42. Trapping Rain Water	Hard	2062
44	76. Minimum Window Substring	Hard	1890
45	84. Largest Rectangle in Histogram	Hard	1949
46	124. Binary Tree Maximum Path Sum	Hard	1807
47	212. Word Search II	Hard	1976
48	269. Alien Dictionary	Hard	1930
49	295. Find Median from Data Stream	Hard	1973
50	297. Serialize and Deserialize Binary Tree	Hard	1884