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Question 1
Dataset
Difficulty
Question 2
Dataset
Difficulty

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Number ⏷	Difficulty	Name	Likes	Dislikes	Percent Liked
1	Easy	344. Reverse String	6190	1004	86.04
2	Easy	520. Detect Capital	1771	376	82.49
3	Easy	557. Reverse Words in a String III	4185	211	95.2
4	Easy	125. Valid Palindrome	5027	6087	45.23
5	Easy	345. Reverse Vowels of a String	1946	2015	49.13
6	Easy	14. Longest Common Prefix	10674	3434	75.66
7	Easy	1. Two Sum	38723	1241	96.89
8	Medium	200. Number of Islands	17367	399	97.75
9	Easy	905. Sort Array By Parity	3895	126	96.87
10	Easy	867. Transpose Matrix	2379	410	85.3
11	Easy	832. Flipping an Image	2556	212	92.34
12	Medium	56. Merge Intervals	16532	591	96.55
13	Easy	242. Valid Anagram	7175	241	96.75
14	Easy	561. Array Partition	1175	177	86.91
15	Medium	438. Find All Anagrams in a String	8831	275	96.98
16	Medium	148. Sort List	8405	257	97.03
17	Hard	23. Merge k Sorted Lists	14408	539	96.39
18	Easy	20. Valid Parentheses	16021	807	95.2
19	Easy	682. Baseball Game	1895	1709	52.58
20	Easy	496. Next Greater Element I	4504	272	94.3
21	Easy	844. Backspace String Compare	5623	251	95.73
22	Medium	856. Score of Parentheses	4723	158	96.76
23	Medium	2. Add Two Numbers	22004	4294	83.67
24	Easy	206. Reverse Linked List	14957	252	98.34
25	Medium	92. Reverse Linked List II	8066	355	95.78
26	Medium	328. Odd Even Linked List	6259	396	94.05
27	Easy	160. Intersection of Two Linked Lists	11319	1031	91.65
28	Hard	25. Reverse Nodes in k-Group	9303	540	94.51
29	Medium	146. LRU Cache	15424	642	96
30	Medium	98. Validate Binary Search Tree	12751	1024	92.57
31	Easy	590. N-ary Tree Postorder Traversal	1894	87	95.61
32	Easy	872. Leaf-Similar Trees	1923	57	97.12
33	Easy	100. Same Tree	7277	155	97.91
34	Easy	404. Sum of Left Leaves	3911	262	93.72
35	Easy	543. Diameter of Binary Tree	9753	606	94.15
36	Medium	687. Longest Univalue Path	3509	636	84.66
37	Medium	513. Find Bottom Left Tree Value	2550	233	91.63
38	Medium	49. Group Anagrams	12006	371	97
39	Medium	3. Longest Substring Without Repeating Characters	29327	1247	95.92
40	Easy	242. Valid Anagram	7175	241	96.75
41	Easy	771. Jewels and Stones	3985	512	88.61
42	Easy	804. Unique Morse Code Words	2081	1391	59.94
43	Easy	202. Happy Number	6950	865	88.93
44	Easy	884. Uncommon Words from Two Sentences	1032	147	87.53
45	Easy	575. Distribute Candies	1094	1209	47.5
46	Medium	893. Groups of Special-Equivalent Strings	460	1420	24.47
47	Easy	349. Intersection of Two Arrays	3755	2007	65.17
48	Medium	36. Valid Sudoku	6568	802	89.12
49	Easy	205. Isomorphic Strings	5012	930	84.35
50	Easy	290. Word Pattern	4093	464	89.82
51	Easy	706. Design HashMap	3630	338	91.48
52	Easy	705. Design HashSet	2357	224	91.32
53	Medium	438. Find All Anagrams in a String	8832	275	96.98
54	Easy	387. First Unique Character in a String	6766	231	96.7
55	Medium	811. Subdomain Visit Count	1274	1204	51.41
56	Easy	389. Find the Difference	3258	397	89.14
57	Medium	451. Sort Characters By Frequency	4947	194	96.23
58	Easy	819. Most Common Word	1398	2744	33.75
59	Medium	451. Sort Characters By Frequency	4947	194	96.23
60	Easy	645. Set Mismatch	2321	608	79.24
61	Hard	726. Number of Atoms	1048	266	79.76
62	Medium	50. Pow(x, n)	5878	6420	47.8
63	Easy	121. Best Time to Buy and Sell Stock	20605	659	96.9
64	Hard	72. Edit Distance	10167	116	98.87
65	Medium	213. House Robber II	6969	104	98.53
66	Hard	10. Regular Expression Matching	9371	1488	86.3
67	Medium	322. Coin Change	14190	316	97.82
68	Easy	121. Best Time to Buy and Sell Stock	20605	659	96.9
69	Hard	72. Edit Distance	10167	116	98.87
70	Medium	213. House Robber II	6969	104	98.53
71	Hard	10. Regular Expression Matching	9371	1488	86.3
72	Easy	387. First Unique Character in a String	6766	231	96.7
73	Easy	225. Implement Stack using Queues	3533	915	79.43
74	Easy	232. Implement Queue using Stacks	4407	282	93.99
75	Medium	189. Rotate Array	11588	1414	89.12
76	Medium	207. Course Schedule	11560	443	96.31
77	Easy	463. Island Perimeter	5012	254	95.18
78	Medium	785. Is Graph Bipartite?	5634	291	95.09
79	Medium	79. Word Search	11129	424	96.33
80	Medium	210. Course Schedule II	8032	269	96.76
81	Hard	329. Longest Increasing Path in a Matrix	7273	111	98.5

Note: premium questions have been removed, which is why the blind 75 only has 70 questions.

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