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1	ID	Title	URL	Is Premium	Acceptance %	Difficulty	Frequency %
2	1	Two Sum	/problems/two-sum	N	49.1%	Easy	2.23349%;
3	2	Add Two Numbers	/problems/add-two-numbers	N	39.8%	Medium	2.74194%;
4	3	Longest Substring Without Repeating Characters	/problems/longest-substring-without-repeating-characters	N	33.8%	Medium	2.63525%;
5	4	Median of Two Sorted Arrays	/problems/median-of-two-sorted-arrays	N	35.3%	Hard	5.8412%;
6	5	Longest Palindromic Substring	/problems/longest-palindromic-substring	N	32.4%	Medium	3.64591%;
7	7	Reverse Integer	/problems/reverse-integer	N	27.2%	Medium	0.47083%;
8	11	Container With Most Water	/problems/container-with-most-water	N	54.3%	Medium	0.441003%;
9	13	Roman to Integer	/problems/roman-to-integer	N	58.2%	Easy	0.570325%;
10	14	Longest Common Prefix	/problems/longest-common-prefix	N	40.8%	Easy	2.04357%;
11	15	3Sum	/problems/3sum	N	32.3%	Medium	2.14436%;
12	16	3Sum Closest	/problems/3sum-closest	N	46.1%	Medium	1.38429%;
13	17	Letter Combinations of a Phone Number	/problems/letter-combinations-of-a-phone-number	N	55.7%	Medium	5.26201%;
14	20	Valid Parentheses	/problems/valid-parentheses	N	40.6%	Easy	0.980496%;
15	21	Merge Two Sorted Lists	/problems/merge-two-sorted-lists	N	61.9%	Easy	1.155%;
16	22	Generate Parentheses	/problems/generate-parentheses	N	71.9%	Medium	3.54531%;
17	23	Merge k Sorted Lists	/problems/merge-k-sorted-lists	N	48.5%	Hard	3.88596%;
18	26	Remove Duplicates from Sorted Array	/problems/remove-duplicates-from-sorted-array	N	50.9%	Easy	0.369076%;
19	27	Remove Element	/problems/remove-element	N	52.2%	Easy	0.541895%;
20	29	Divide Two Integers	/problems/divide-two-integers	N	17.3%	Medium	1.07945%;
21	31	Next Permutation	/problems/next-permutation	N	37.2%	Medium	4.45734%;
22	33	Search in Rotated Sorted Array	/problems/search-in-rotated-sorted-array	N	38.7%	Medium	0.54061%;
23	34	Find First and Last Position of Element in Sorted Array	/problems/find-first-and-last-position-of-element-in-sorted-array	N	41.6%	Medium	6.33961%;
24	35	Search Insert Position	/problems/search-insert-position	N	42.0%	Easy	0.409332%;
25	36	Valid Sudoku	/problems/valid-sudoku	N	56.9%	Medium	5.5503%;
26	37	Sudoku Solver	/problems/sudoku-solver	N	56.8%	Hard	3.08567%;
27	38	Count and Say	/problems/count-and-say	N	51.3%	Medium	5.89527%;
28	42	Trapping Rain Water	/problems/trapping-rain-water	N	58.8%	Hard	3.43817%;
29	45	Jump Game II	/problems/jump-game-ii	N	38.6%	Medium	1.2034%;
30	46	Permutations	/problems/permutations	N	74.9%	Medium	0.892449%;
31	48	Rotate Image	/problems/rotate-image	N	70.1%	Medium	3.26258%;
32	49	Group Anagrams	/problems/group-anagrams	N	66.5%	Medium	2.61033%;
33	50	Pow(x, n)	/problems/powx-n	N	32.8%	Medium	0.84217%;
34	51	N-Queens	/problems/n-queens	N	63.1%	Hard	2.75022%;
35	53	Maximum Subarray	/problems/maximum-subarray	N	50.1%	Medium	0.862981%;
36	54	Spiral Matrix	/problems/spiral-matrix	N	43.8%	Medium	0.977605%;
37	56	Merge Intervals	/problems/merge-intervals	N	46.0%	Medium	17.5714%;
38	64	Minimum Path Sum	/problems/minimum-path-sum	N	60.7%	Medium	4.36985%;
39	68	Text Justification	/problems/text-justification	N	36.8%	Hard	46.8519%;
40	70	Climbing Stairs	/problems/climbing-stairs	N	51.8%	Easy	0.367588%;
41	79	Word Search	/problems/word-search	N	39.8%	Medium	21.9579%;
42	91	Decode Ways	/problems/decode-ways	N	32.3%	Medium	1.60907%;
43	98	Validate Binary Search Tree	/problems/validate-binary-search-tree	N	31.8%	Medium	1.22679%;
44	121	Best Time to Buy and Sell Stock	/problems/best-time-to-buy-and-sell-stock	N	54.4%	Easy	0.61902%;
45	122	Best Time to Buy and Sell Stock II	/problems/best-time-to-buy-and-sell-stock-ii	N	63.4%	Medium	2.63022%;
46	127	Word Ladder	/problems/word-ladder	N	36.7%	Hard	2.28755%;
47	135	Candy	/problems/candy	N	40.8%	Hard	18.0073%;
48	146	LRU Cache	/problems/lru-cache	N	40.5%	Medium	2.5453%;
49	149	Max Points on a Line	/problems/max-points-on-a-line	N	21.8%	Hard	5.2341%;
50	153	Find Minimum in Rotated Sorted Array	/problems/find-minimum-in-rotated-sorted-array	N	48.5%	Medium	0.9882%;
51	162	Find Peak Element	/problems/find-peak-element	N	46.2%	Medium	7.06685%;
52	167	Two Sum II - Input Array Is Sorted	/problems/two-sum-ii-input-array-is-sorted	N	60.0%	Medium	3.08045%;
53	180	Consecutive Numbers	/problems/consecutive-numbers	N	46.8%	Medium	4.41942%;
54	181	Employees Earning More Than Their Managers	/problems/employees-earning-more-than-their-managers	N	68.6%	Easy	2.06937%;
55	188	Best Time to Buy and Sell Stock IV	/problems/best-time-to-buy-and-sell-stock-iv	N	38.0%	Hard	4.84335%;
56	196	Delete Duplicate Emails	/problems/delete-duplicate-emails	N	59.0%	Easy	1.54368%;
57	200	Number of Islands	/problems/number-of-islands	N	56.4%	Medium	15.7009%;
58	205	Isomorphic Strings	/problems/isomorphic-strings	N	42.6%	Easy	1.28039%;
59	206	Reverse Linked List	/problems/reverse-linked-list	N	72.5%	Easy	0.318986%;
60	207	Course Schedule	/problems/course-schedule	N	45.4%	Medium	3.63741%;
61	210	Course Schedule II	/problems/course-schedule-ii	N	48.0%	Medium	1.51798%;
62	212	Word Search II	/problems/word-search-ii	N	36.9%	Hard	38.0712%;
63	214	Shortest Palindrome	/problems/shortest-palindrome	N	32.2%	Hard	8.2308%;
64	217	Contains Duplicate	/problems/contains-duplicate	N	61.3%	Easy	0.669299%;
65	226	Invert Binary Tree	/problems/invert-binary-tree	N	73.3%	Easy	0.687291%;
66	227	Basic Calculator II	/problems/basic-calculator-ii	N	42.2%	Medium	3.87355%;
67	230	Kth Smallest Element in a BST	/problems/kth-smallest-element-in-a-bst	N	69.4%	Medium	31.5889%;
68	235	Lowest Common Ancestor of a Binary Search Tree	/problems/lowest-common-ancestor-of-a-binary-search-tree	N	60.3%	Medium	1.03415%;
69	238	Product of Array Except Self	/problems/product-of-array-except-self	N	64.7%	Medium	1.48527%;
70	239	Sliding Window Maximum	/problems/sliding-window-maximum	N	46.6%	Hard	3.02642%;
71	246	Strobogrammatic Number	/problems/strobogrammatic-number	Y	47.6%	Easy	14.7426%;
72	253	Meeting Rooms II	/problems/meeting-rooms-ii	Y	50.5%	Medium	11.2023%;
73	269	Alien Dictionary	/problems/alien-dictionary	Y	35.3%	Hard	6.90929%;
74	278	First Bad Version	/problems/first-bad-version	N	43.0%	Easy	0.576131%;
75	279	Perfect Squares	/problems/perfect-squares	N	52.1%	Medium	2.76692%;
76	295	Find Median from Data Stream	/problems/find-median-from-data-stream	N	51.5%	Hard	1.94567%;
77	297	Serialize and Deserialize Binary Tree	/problems/serialize-and-deserialize-binary-tree	N	55.0%	Hard	13.0079%;
78	301	Remove Invalid Parentheses	/problems/remove-invalid-parentheses	N	47.1%	Hard	10.9339%;
79	305	Number of Islands II	/problems/number-of-islands-ii	Y	39.4%	Hard	19.3177%;
80	312	Burst Balloons	/problems/burst-balloons	N	56.8%	Hard	40.8506%;
81	322	Coin Change	/problems/coin-change	N	41.6%	Medium	0.803578%;
82	332	Reconstruct Itinerary	/problems/reconstruct-itinerary	N	41.0%	Hard	6.70459%;
83	341	Flatten Nested List Iterator	/problems/flatten-nested-list-iterator	N	61.6%	Medium	7.41936%;
84	345	Reverse Vowels of a String	/problems/reverse-vowels-of-a-string	N	49.7%	Easy	2.60846%;
85	347	Top K Frequent Elements	/problems/top-k-frequent-elements	N	64.8%	Medium	3.25966%;
86	354	Russian Doll Envelopes	/problems/russian-doll-envelopes	N	38.3%	Hard	13.0079%;
87	361	Bomb Enemy	/problems/bomb-enemy	Y	50.9%	Medium	68.7449%;
88	362	Design Hit Counter	/problems/design-hit-counter	Y	68.4%	Medium	15.6776%;
89	378	Kth Smallest Element in a Sorted Matrix	/problems/kth-smallest-element-in-a-sorted-matrix	N	61.6%	Medium	3.94067%;
90	380	Insert Delete GetRandom O(1)	/problems/insert-delete-getrandom-o1	N	52.0%	Medium	24.859%;
91	384	Shuffle an Array	/problems/shuffle-an-array	N	57.7%	Medium	24.5712%;
92	387	First Unique Character in a String	/problems/first-unique-character-in-a-string	N	59.0%	Easy	2.2419%;
93	392	Is Subsequence	/problems/is-subsequence	N	49.0%	Easy	0.671105%;
94	394	Decode String	/problems/decode-string	N	57.6%	Medium	9.674%;
95	399	Evaluate Division	/problems/evaluate-division	N	59.6%	Medium	49.7735%;
96	412	Fizz Buzz	/problems/fizz-buzz	N	68.9%	Easy	0.795863%;
97	414	Third Maximum Number	/problems/third-maximum-number	N	32.6%	Easy	2.42773%;
98	416	Partition Equal Subset Sum	/problems/partition-equal-subset-sum	N	46.6%	Medium	1.84709%;
99	424	Longest Repeating Character Replacement	/problems/longest-repeating-character-replacement	N	51.5%	Medium	20.7818%;
100	465	Optimal Account Balancing	/problems/optimal-account-balancing	Y	49.3%	Hard	62.3413%;
101	474	Ones and Zeroes	/problems/ones-and-zeroes	N	46.7%	Medium	8.30659%;
102	494	Target Sum	/problems/target-sum	N	45.6%	Medium	2.92698%;
103	529	Minesweeper	/problems/minesweeper	N	65.5%	Medium	38.0668%;
104	543	Diameter of Binary Tree	/problems/diameter-of-binary-tree	N	56.1%	Easy	1.03415%;
105	564	Find the Closest Palindrome	/problems/find-the-closest-palindrome	N	21.9%	Hard	94.9563%;
106	581	Shortest Unsorted Continuous Subarray	/problems/shortest-unsorted-continuous-subarray	N	36.3%	Medium	8.9679%;
107	586	Customer Placing the Largest Number of Orders	/problems/customer-placing-the-largest-number-of-orders	N	72.1%	Easy	2.72553%;
108	662	Maximum Width of Binary Tree	/problems/maximum-width-of-binary-tree	N	40.6%	Medium	3.95781%;
109	692	Top K Frequent Words	/problems/top-k-frequent-words	N	56.9%	Medium	37.0909%;
110	698	Partition to K Equal Sum Subsets	/problems/partition-to-k-equal-sum-subsets	N	40.8%	Medium	5.62322%;
111	721	Accounts Merge	/problems/accounts-merge	N	56.4%	Medium	9.24426%;
112	729	My Calendar I	/problems/my-calendar-i	N	57.2%	Medium	27.3759%;
113	731	My Calendar II	/problems/my-calendar-ii	N	54.8%	Medium	13.8194%;
114	752	Open the Lock	/problems/open-the-lock	N	55.5%	Medium	8.08333%;
115	759	Employee Free Time	/problems/employee-free-time	Y	71.7%	Hard	11.9587%;
116	428	Serialize and Deserialize N-ary Tree	/problems/serialize-and-deserialize-n-ary-tree	Y	65.5%	Hard	13.8194%;
117	427	Construct Quad Tree	/problems/construct-quad-tree	N	66.3%	Medium	75.9934%;
118	767	Reorganize String	/problems/reorganize-string	N	52.8%	Medium	18.3901%;
119	773	Sliding Puzzle	/problems/sliding-puzzle	N	63.9%	Hard	13.401%;
120	704	Binary Search	/problems/binary-search	N	55.1%	Easy	1.52432%;
121	785	Is Graph Bipartite?	/problems/is-graph-bipartite	N	52.7%	Medium	4.02792%;
122	815	Bus Routes	/problems/bus-routes	N	45.7%	Hard	100%;
123	852	Peak Index in a Mountain Array	/problems/peak-index-in-a-mountain-array	N	69.4%	Medium	4.58538%;
124	855	Exam Room	/problems/exam-room	N	43.4%	Medium	62.3413%;
125	528	Random Pick with Weight	/problems/random-pick-with-weight	N	46.1%	Medium	5.6938%;
126	902	Numbers At Most N Given Digit Set	/problems/numbers-at-most-n-given-digit-set	N	41.4%	Hard	40.8506%;
127	930	Binary Subarrays With Sum	/problems/binary-subarrays-with-sum	N	51.0%	Medium	29.6226%;
128	934	Shortest Bridge	/problems/shortest-bridge	N	54.0%	Medium	8.62444%;
129	953	Verifying an Alien Dictionary	/problems/verifying-an-alien-dictionary	N	52.7%	Easy	11.0086%;
130	981	Time Based Key-Value Store	/problems/time-based-key-value-store	N	53.4%	Medium	3.85713%;
131	986	Interval List Intersections	/problems/interval-list-intersections	N	71.4%	Medium	12.0667%;
132	994	Rotting Oranges	/problems/rotting-oranges	N	52.5%	Medium	5.26445%;
133	1002	Find Common Characters	/problems/find-common-characters	N	68.3%	Easy	7.5432%;
134	1008	Construct Binary Search Tree from Preorder Traversal	/problems/construct-binary-search-tree-from-preorder-traversal	N	81.0%	Medium	5.84043%;
135	1152	Analyze User Website Visit Pattern	/problems/analyze-user-website-visit-pattern	Y	43.3%	Medium	9.05814%;
136	1044	Longest Duplicate Substring	/problems/longest-duplicate-substring	N	30.6%	Hard	18.4885%;
137	1095	Find in Mountain Array	/problems/find-in-mountain-array	N	35.8%	Hard	13.2015%;
138	1328	Break a Palindrome	/problems/break-a-palindrome	N	53.2%	Medium	7.12698%;
139	1428	Leftmost Column with at Least a One	/problems/leftmost-column-with-at-least-a-one	Y	53.0%	Medium	88.5527%;
140	1281	Subtract the Product and Sum of Digits of an Integer	/problems/subtract-the-product-and-sum-of-digits-of-an-integer	N	86.7%	Easy	1.91702%;
141	1293	Shortest Path in a Grid with Obstacles Elimination	/problems/shortest-path-in-a-grid-with-obstacles-elimination	N	45.6%	Hard	12.9238%;
142	1344	Angle Between Hands of a Clock	/problems/angle-between-hands-of-a-clock	N	63.4%	Medium	13.401%;
143	1351	Count Negative Numbers in a Sorted Matrix	/problems/count-negative-numbers-in-a-sorted-matrix	N	75.2%	Easy	4.02792%;
144	1402	Reducing Dishes	/problems/reducing-dishes	N	72.0%	Hard	15.5234%;
145	1423	Maximum Points You Can Obtain from Cards	/problems/maximum-points-you-can-obtain-from-cards	N	52.3%	Medium	6.11619%;
146	1438	Longest Continuous Subarray With Absolute Diff Less Than or Equal to Limit	/problems/longest-continuous-subarray-with-absolute-diff-less-than-or-equal-to-limit	N	48.0%	Medium	71.9769%;
147	1531	String Compression II	/problems/string-compression-ii	N	49.9%	Hard	25.0474%;
148	1515	Best Position for a Service Centre	/problems/best-position-for-a-service-centre	N	38.0%	Hard	54.67%;
149	1743	Restore the Array From Adjacent Pairs	/problems/restore-the-array-from-adjacent-pairs	N	68.7%	Medium	23.622%;
150	1740	Find Distance in a Binary Tree	/problems/find-distance-in-a-binary-tree	Y	68.8%	Medium	21.2387%;
151	1838	Frequency of the Most Frequent Element	/problems/frequency-of-the-most-frequent-element	N	38.6%	Medium	35.1687%;
152	1861	Rotating the Box	/problems/rotating-the-box	N	64.7%	Medium	23.7716%;
153	1842	Next Palindrome Using Same Digits	/problems/next-palindrome-using-same-digits	Y	53.5%	Hard	82.1491%;
154	1929	Concatenation of Array	/problems/concatenation-of-array	N	91.3%	Easy	2.79142%;
155	2023	Number of Pairs of Strings With Concatenation Equal to Target	/problems/number-of-pairs-of-strings-with-concatenation-equal-to-target	N	72.9%	Medium	27.2735%;
156	2134	Minimum Swaps to Group All 1's Together II	/problems/minimum-swaps-to-group-all-1s-together-ii	N	50.7%	Medium	22.9734%;
157	2187	Minimum Time to Complete Trips	/problems/minimum-time-to-complete-trips	N	32.0%	Medium	58.393%;
158	2235	Add Two Integers	/problems/add-two-integers	N	89.5%	Easy	1.06557%;
159	2333	Minimum Sum of Squared Difference	/problems/minimum-sum-of-squared-difference	N	25.5%	Medium	21.2387%;