Files

0001-two-sum
0020-valid-parentheses
0027-remove-element
0036-valid-sudoku
0049-group-anagrams
0058-length-of-last-word
0088-merge-sorted-array
0125-valid-palindrome
0128-longest-consecutive-sequence
0167-two-sum-ii-input-array-is-sorted
0175-combine-two-tables
0217-contains-duplicate
0238-product-of-array-except-self
0242-valid-anagram
0274-h-index
0347-top-k-frequent-elements
0380-insert-delete-getrandom-o1
0392-is-subsequence
0584-find-customer-referee
1299-replace-elements-with-greatest-element-on-right-side
1683-invalid-tweets
1757-recyclable-and-low-fat-products
2058-concatenation-of-array
2894-divisible-and-non-divisible-sums-difference
2913-subarrays-distinct-element-sum-of-squares-i
2914-minimum-number-of-changes-to-make-binary-string-beautiful
1. Two Sum.cpp
100. Same Tree.cpp
1002. Find Common Characters.cpp
1009. Complement of Base 10 Integer.cpp
101. Symmetric Tree.cpp
1018. Binary Prefix Divisible By 5.cpp
102. Binary Tree Level Order Traversal.cpp
1021. Remove Outermost Parentheses.cpp
1022. Sum of Root To Leaf Binary Numbers.cpp
1025. Divisor Game.cpp
1030. Matrix Cells in Distance Order.cpp
1033. Moving Stones Until Consecutive.cpp
1038. Binary Search Tree to Greater Sum Tree.cpp
104. Maximum Depth of Binary Tree.cpp
1046. Last Stone Weight.cpp
1047. Remove All Adjacent Duplicates In String.cpp
1051. Height Checker.cpp
107. Binary Tree Level Order Traversal II.cpp
1078. Occurrences After Bigram.cpp
108. Convert Sorted Array to Binary Search Tree.cpp
1089. Duplicate Zeros.cpp
110. Balanced Binary Tree.cpp
1103. Distribute Candies to People.cpp
1108. Defanging an IP Address.cpp
111. Minimum Depth of Binary Tree.cpp
1114. Print in Order.cpp
112. Path Sum.cpp
1122. Relative Sort Array.cpp
1137. N-th Tribonacci Number.cpp
1160. Find Words That Can Be Formed by Characters.cpp
1170. Compare Strings by Frequency of the Smallest Character.cpp
118. Pascal's Triangle.cpp
1184. Distance Between Bus Stops.cpp
1185. Day of the Week.cpp
1189. Maximum Number of Balloons.cpp
119. Pascal's Triangle II.cpp
1200. Minimum Absolute Difference.cpp
1207. Unique Number of Occurrences.cpp
121. Best Time to Buy and Sell Stock.cpp
1217. Play with Chips.cpp
122. Best Time to Buy and Sell Stock II.cpp
1221. Split a String in Balanced Strings.cpp
1237. Find Positive Integer Solution for a Given Equation.cpp
125. Valid Palindrome.cpp
1250. Check If It Is a Good Array.cpp
1252. Cells with Odd Values in a Matrix.cpp
1260. Shift 2D Grid.cpp
1266. Minimum Time Visiting All Points.cpp
1281. Subtract the Product and Sum of Digits of an Integer.cpp
1282. Group the People Given the Group Size They Belong To.cpp
1287. Element Appearing More Than 25% In Sorted Array.cpp
1290. Convert Binary Number in a Linked List to Integer.cpp
1295. Find Numbers with Even Number of Digits.cpp
1299. Replace Elements with Greatest Element on Right Side.cpp
13. Roman to Integer.cpp
130. Surrounded Regions.cpp
1302. Deepest Leaves Sum.cpp
1304. Find N Unique Integers Sum up to Zero.cpp
1309. Decrypt String from Alphabet to Integer Mapping.cpp
1310. XOR Queries of a Subarray.cpp
1313. Decompress Run-Length Encoded List.cpp
1315. Sum of Nodes with Even-Valued Grandparent.cpp
1317. Convert Integer to the Sum of Two No-Zero Integers.cpp
1323. Maximum 69 Number.cpp
1331. Rank Transform of an Array.cpp
1332. Remove Palindromic Subsequences.cpp
1337. The K Weakest Rows in a Matrix.cpp
1342. Number of Steps to Reduce a Number to Zero.cpp
1351. Count Negative Numbers in a Sorted Matrix.cpp
1356. Sort Integers by The Number of 1 Bits.cpp
136. Single Number.cpp
1365. How Many Numbers Are Smaller Than the Current Number.cpp
137. Single Number II.cpp
1370. Increasing Decreasing String.cpp
1374. Generate a String With Characters That Have Odd Counts.cpp
1380. Lucky Numbers in a Matrix.cpp
1385. Find the Distance Value Between Two Arrays.cpp
1389. Create Target Array in the Given Order.cpp
1394. Find Lucky Integer in an Array.cpp
1399. Count Largest Group.cpp
1403. Minimum Subsequence in Non-Increasing Order.cpp
1408. String Matching in an Array.cpp
141. Linked List Cycle.cpp
1413. Minimum Value to Get Positive Step by Step Sum.cpp
1431. Kids With the Greatest Number of Candies.cpp
1436. Destination City.cpp
144. Binary Tree Preorder Traversal.cpp
1441. Build an Array With Stack Operations.cpp
1446. Consecutive Characters.cpp
145. Binary Tree Postorder Traversal.cpp
1450. Number of Students Doing Homework at a Given Time.cpp
1455. Check If a Word Occurs As a Prefix of Any Word in a Sentence.cpp
1460. Make Two Arrays Equal by Reversing Sub-arrays.cpp
1464. Maximum Product of Two Elements in an Array.cpp
1470. Shuffle the Array.cpp
1475. Final Prices With a Special Discount in a Shop.cpp
1476. Subrectangle Queries.cpp
1480. Running Sum of 1d Array.cpp
1491. Average Salary Excluding the Minimum and Maximum Salary.cpp
1502. Can Make Arithmetic Progression From Sequence.cpp
1507. Reformat Date.cpp
1512. Number of Good Pairs.cpp
1518. Water Bottles.cpp
1523. Count Odd Numbers in an Interval Range.cpp
1528. Shuffle String.cpp
1534. Count Good Triplets.cpp
1539. Kth Missing Positive Number.cpp
1544. Make The String Great.cpp
155. Min Stack.cpp
1550. Three Consecutive Odds.cpp
1556. Thousand Separator.cpp
1572. Matrix Diagonal Sum.cpp
1582. Special Positions in a Binary Matrix.cpp
1588. Sum of All Odd Length Subarrays.cpp
1592. Rearrange Spaces Between Words.cpp
1598. Crawler Log Folder.cpp
160. Intersection of Two Linked Lists.cpp
162. Find Peak Element.cpp
1662. Check If Two String Arrays are Equivalent.cpp
167. Two Sum II - Input array is sorted.cpp
169. Majority Element.cpp
171. Excel Sheet Column Number.cpp
172. Factorial Trailing Zeroes.cpp
189.Rotate Array.cpp
190. Reverse Bits.cpp
191. Number of 1 Bits.cpp
198. House Robber.cpp
20. Valid Parentheses.cpp
200. Number of Islands.cpp
202. Happy Number.cpp
203. Remove Linked List Elements.cpp
204. Count Primes.cpp
206. Reverse Linked List.cpp
21. Merge Two Sorted Lists.cpp
210. Course Schedule II.cpp
215. Kth Largest Element in an Array.cpp
217. Contains Duplicate.cpp
219. Contains Duplicate II.cpp
225. Implement Stack using Queues.cpp
226. Invert Binary Tree.cpp
231. Power of Two.cpp
232. Implement Queue using Stacks.cpp
236. Lowest Common Ancestor of a Binary Tree.cpp
237. Delete Node in a Linked List.cpp
242. Valid Anagram.cpp
257. Binary Tree Paths.cpp
258. Add Digits.cpp
26. Remove Duplicates from Sorted Array.cpp
263. Ugly Number.cpp
268. Missing Number.cpp
27. Remove Element.cpp
278. First Bad Version.cpp
283. Move Zeroes.cpp
292. Nim Game.cpp
303. Range Sum Query - Immutable.cpp
319. Bulb Switcher.cpp
322. Coin Change.cpp
326. Power of Three.cpp
338. Counting Bits.cpp
342. Power of Four.cpp
345. Reverse Vowels of a String.cpp
349. Intersection of Two Arrays.cpp
35. Search Insert Position.cpp
350. Intersection of Two Arrays II.cpp
355. Design Twitter.cpp
374. Guess Number Higher or Lower.cpp
38. Count and Say.cpp
383. Ransom Note.cpp
387. First Unique Character in a String.cpp
389. Find the Difference.cpp
392. Is Subsequence.cpp
399. Evaluate Division.cpp
401. Binary Watch.cpp
404. Sum of Left Leaves.cpp
405. Convert a Number to Hexadecimal.cpp
412. Fizz Buzz.cpp
414. Third Maximum Number.cpp
415. Add Strings.cpp
434. Number of Segments in a String.cpp
441. Arranging Coins.cpp
447. Number of Boomerangs.cpp
448. Find All Numbers Disappeared in an Array.cpp
453. Minimum Moves to Equal Array Elements.cpp
455. Assign Cookies.cpp
457. Circular Array Loop.cpp
46. Permutations.cpp
461. Hamming Distance.cpp
463. Island Perimeter.cpp
476. Number Complement.cpp
48. Rotate Image.cpp
485. Max Consecutive Ones.cpp
492. Construct the Rectangle.cpp
496. Next Greater Element I.cpp
500. Keyboard Row.cpp
504. Base 7.cpp
506. Relative Ranks.cpp
507. Perfect Number.cpp
509. Fibonacci Number.cpp
520. Detect Capital.cpp
521. Longest Uncommon Subsequence I.cpp
53. Maximum Subarray.cpp
530. Minimum Absolute Difference in BST.cpp
535. Encode and Decode TinyURL.cpp
538. Convert BST to Greater Tree.cpp
541. Reverse String II.cpp
543. Diameter of Binary Tree.cpp
551. Student Attendance Record I.cpp
557. Reverse Words in a String III.cpp
559. Maximum Depth of N-ary Tree.cpp
561. Array Partition I.cpp
563. Binary Tree Tilt.cpp
566. Reshape the Matrix.cpp
575. Distribute Candies.cpp
58. Length of Last Word.cpp
589. N-ary Tree Preorder Traversal.cpp
590. N-ary Tree Postorder Traversal.cpp
594. Longest Harmonious Subsequence.cpp
598. Range Addition II.cpp
599. Minimum Index Sum of Two Lists.cpp
606. Construct String from Binary Tree.cpp
617. Merge Two Binary Trees.cpp
628. Maximum Product of Three Numbers.cpp
637. Average of Levels in Binary Tree.cpp
653. Two Sum IV - Input is a BST.cpp
654. Maximum Binary Tree.cpp
657. Robot Return to Origin.cpp
66. Plus One.cpp
661. Image Smoother.cpp
669. Trim a Binary Search Tree.cpp
67. Add Binary.cpp
671. Second Minimum Node In a Binary Tree.cpp
680. Valid Palindrome II.cpp
682. Baseball Game.cpp
69. Sqrt(x).cpp
690. Employee Importance.cpp
693. Binary Number with Alternating Bits.cpp
696. Count Binary Substrings.cpp
697. Degree of an Array.cpp
7. Reverse Integer.cpp
70. Climbing Stairs.cpp
700. Search in a Binary Search Tree.cpp
701. Insert into a Binary Search Tree.cpp
703. Kth Largest Element in a Stream.cpp
704. Binary Search.cpp
705. Design HashSet.cpp
706. Design HashMap.cpp
709. To Lower Case.cpp
713. Subarray Product Less Than K.cpp
717. 1-bit and 2-bit Characters.cpp
720. Longest Word in Dictionary.cpp
728. Self Dividing Numbers.cpp
733. Flood Fill.cpp
744. Find Smallest Letter Greater Than Target.cpp
746. Min Cost Climbing Stairs.cpp
748. Shortest Completing Word.cpp
75. Sort Colors.cpp
762. Prime Number of Set Bits in Binary Representation.cpp
763. Partition Labels.cpp
766. Toeplitz Matrix.cpp
771. Jewels and Stones.cpp
783. Minimum Distance Between BST Nodes.cpp
784. Letter Case Permutation.cpp
788. Rotated Digits.cpp
796. Rotate String.cpp
797. All Paths From Source to Target.cpp
80. Remove Duplicates from Sorted Array II.cpp
804. Unique Morse Code Words.cpp
806. Number of Lines To Write String.cpp
807. Max Increase to Keep City Skyline.cpp
811. Subdomain Visit Count.cpp
812. Largest Triangle Area.cpp
821. Shortest Distance to a Character.cpp
824. Goat Latin.cpp
83. Remove Duplicates from Sorted List.cpp
832. Flipping an Image.cpp
836. Rectangle Overlap.cpp
844. Backspace String Compare.cpp
845. Longest Mountain in Array.cpp
852. Peak Index in a Mountain Array.cpp
860. Lemonade Change.cpp
867. Transpose Matrix.cpp
868. Binary Gap.cpp
872. Leaf-Similar Trees.cpp
876. Middle of the Linked List.cpp
88. Merge Sorted Array.cpp
883. Projection Area of 3D Shapes.cpp
884. Uncommon Words from Two Sentences.cpp
888. Fair Candy Swap.cpp
892. Surface Area of 3D Shapes.cpp
893. Groups of Special-Equivalent Strings.cpp
896. Monotonic Array.cpp
897. Increasing Order Search Tree.cpp
9. Palindrome Number.cpp
904. Fruit Into Baskets.cpp
908. Smallest Range I.cpp
914. X of a Kind in a Deck of Cards.cpp
922. Sort Array By Parity II.cpp
925. Long Pressed Name.cpp
929. Unique Email Addresses.cpp
933. Number of Recent Calls.cpp
937. Reorder Data in Log Files.cpp
938. Range Sum of BST.cpp
94. Binary Tree Inorder Traversal.cpp
941. Valid Mountain Array.cpp
942. DI String Match.cpp
944. Delete Columns to Make Sorted.cpp
953. Verifying an Alien Dictionary.cpp
961. N-Repeated Element in Size 2N Array.cpp
965. Univalued Binary Tree.cpp
976. Largest Perimeter Triangle.cpp
977. Squares of a Sorted Array.cpp
985. Sum of Even Numbers After Queries.cpp
986. Interval List Intersections.cpp
999. Available Captures for Rook.cpp
README.md
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137. Single Number II.cpp

solved 150! problems

Jul 29, 2020

b083d42 · Jul 29, 2020