leetcode easy-蒲公英云

1	Two Sum		44.5%	Easy
	7	Reverse Integer		25.5%	Easy
	9	Palindrome Number		44.6%	Easy
	13	Roman to Integer		53.1%	Easy
	14	Longest Common Prefix		34.1%	Easy
	20	Valid Parentheses		37.1%	Easy
	21	Merge Two Sorted Lists		48.6%	Easy
	26	Remove Duplicates from Sorted Array		41.7%	Easy
	27	Remove Element		45.4%	Easy
	28	Implement strStr()		32.8%	Easy
	35	Search Insert Position		41.1%	Easy
	38	Count and Say		41.6%	Easy
	53	Maximum Subarray		44.4%	Easy
	58	Length of Last Word		32.3%	Easy
	66	Plus One		41.6%	Easy
	67	Add Binary		40.3%	Easy
	69	Sqrt(x)		32.0%	Easy
	70	Climbing Stairs		44.9%	Easy
	83	Remove Duplicates from Sorted List		43.3%	Easy
	88	Merge Sorted Array		36.7%	Easy
	100	Same Tree		50.6%	Easy
	101	Symmetric Tree		44.2%	Easy
	104	Maximum Depth of Binary Tree		61.8%	Easy
	107	Binary Tree Level Order Traversal II		48.0%	Easy
	108	Convert Sorted Array to Binary Search Tree		52.4%	Easy
	110	Balanced Binary Tree		41.6%	Easy
	111	Minimum Depth of Binary Tree		35.8%	Easy
	112	Path Sum		38.5%	Easy
	118	Pascal’s Triangle		47.6%	Easy
	119	Pascal’s Triangle II		44.9%	Easy
	121	Best Time to Buy and Sell Stock		48.1%	Easy
	122	Best Time to Buy and Sell Stock II		52.9%	Easy
	125	Valid Palindrome		32.1%	Easy
	136	Single Number		61.3%	Easy
	141	Linked List Cycle		37.9%	Easy
	155	Min Stack		38.5%	Easy
	157	Read N Characters Given Read4		30.5%	Easy
	160	Intersection of Two Linked Lists		35.3%	Easy
	167	Two Sum II - Input array is sorted		51.2%	Easy
	168	Excel Sheet Column Title		29.5%	Easy
	169	Majority Element		53.9%	Easy
	170	Two Sum III - Data structure design		31.3%	Easy
	171	Excel Sheet Column Number		52.2%	Easy
	172	Factorial Trailing Zeroes		37.5%	Easy
	175	Combine Two Tables		53.8%	Easy
	176	Second Highest Salary		28.1%	Easy
	181	Employees Earning More Than Their Managers		50.1%	Easy
	182	Duplicate Emails		56.4%	Easy
	183	Customers Who Never Order		46.5%	Easy
	189	Rotate Array		31.2%	Easy
	190	Reverse Bits		32.7%	Easy
	191	Number of 1 Bits		44.6%	Easy
	193	Valid Phone Numbers		25.4%	Easy
	195	Tenth Line		33.9%	Easy
	196	Delete Duplicate Emails		34.7%	Easy
	197	Rising Temperature		35.7%	Easy
	198	House Robber		41.3%	Easy
	202	Happy Number		46.3%	Easy
	203	Remove Linked List Elements		36.3%	Easy
	204	Count Primes		29.7%	Easy
	205	Isomorphic Strings		38.0%	Easy
	206	Reverse Linked List		56.5%	Easy
	217	Contains Duplicate		53.1%	Easy
	219	Contains Duplicate II		35.9%	Easy
	225	Implement Stack using Queues		40.5%	Easy
	226	Invert Binary Tree		59.4%	Easy
	231	Power of Two		42.3%	Easy
	232	Implement Queue using Stacks		44.6%	Easy
	234	Palindrome Linked List		36.9%	Easy
	235	Lowest Common Ancestor of a Binary Search Tree		46.0%	Easy
	237	Delete Node in a Linked List		55.2%	Easy
	242	Valid Anagram		53.3%	Easy
	243	Shortest Word Distance		58.3%	Easy
	246	Strobogrammatic Number		42.9%	Easy
	252	Meeting Rooms		52.7%	Easy
	256	Paint House		49.8%	Easy
	257	Binary Tree Paths		47.0%	Easy
	258	Add Digits		54.7%	Easy
	263	Ugly Number		40.9%	Easy
	266	Palindrome Permutation		60.4%	Easy
	268	Missing Number		49.1%	Easy
	270	Closest Binary Search Tree Value		44.6%	Easy
	276	Paint Fence		36.9%	Easy
	278	First Bad Version		31.0%	Easy
	283	Move Zeroes		55.0%	Easy
	290	Word Pattern		35.5%	Easy
	292	Nim Game		55.8%	Easy
	293	Flip Game		59.3%	Easy
	299	Bulls and Cows		40.3%	Easy
	303	Range Sum Query - Immutable		39.4%	Easy
	326	Power of Three		41.8%	Easy
	339	Nested List Weight Sum		69.4%	Easy
	342	Power of Four		40.6%	Easy
	344	Reverse String		63.9%	Easy
	345	Reverse Vowels of a String		42.1%	Easy
	346	Moving Average from Data Stream		67.2%	Easy
	349	Intersection of Two Arrays		56.4%	Easy
	350	Intersection of Two Arrays II		48.8%	Easy
	359	Logger Rate Limiter		66.3%	Easy
	367	Valid Perfect Square		40.3%	Easy
	371	Sum of Two Integers		50.8%	Easy
	374	Guess Number Higher or Lower		40.2%	Easy
	383	Ransom Note		50.6%	Easy
	387	First Unique Character in a String		50.6%	Easy
	389	Find the Difference		53.6%	Easy
	392	Is Subsequence		47.4%	Easy
	401	Binary Watch		45.7%	Easy
	404	Sum of Left Leaves		49.6%	Easy
	405	Convert a Number to Hexadecimal		42.4%	Easy
	408	Valid Word Abbreviation		29.9%	Easy
	409	Longest Palindrome		48.6%	Easy
	412	Fizz Buzz		60.0%	Easy
	414	Third Maximum Number		29.4%	Easy
	415	Add Strings		44.4%	Easy
	422	Valid Word Square		36.7%	Easy
	429	N-ary Tree Level Order Traversal		60.6%	Easy
	434	Number of Segments in a String		37.2%	Easy
	437	Path Sum III		43.5%	Easy
	441	Arranging Coins		38.5%	Easy
	443	String Compression		38.3%	Easy
	447	Number of Boomerangs		50.4%	Easy
	448	Find All Numbers Disappeared in an Array		54.1%	Easy
	453	Minimum Moves to Equal Array Elements		49.5%	Easy
	455	Assign Cookies		48.8%	Easy
	459	Repeated Substring Pattern		40.4%	Easy
	461	Hamming Distance		70.6%	Easy
	463	Island Perimeter		61.6%	Easy
	475	Heaters		32.2%	Easy
	476	Number Complement		62.7%	Easy
	482	License Key Formatting		41.4%	Easy
	485	Max Consecutive Ones		55.4%	Easy
	492	Construct the Rectangle		48.9%	Easy
	496	Next Greater Element I		60.3%	Easy
	500	Keyboard Row		62.7%	Easy
	501	Find Mode in Binary Search Tree		40.0%	Easy
	504	Base 7		45.2%	Easy
	506	Relative Ranks		48.8%	Easy
	507	Perfect Number		34.8%	Easy
	509	Fibonacci Number		66.7%	Easy
	511	Game Play Analysis I		75.3%	Easy
	512	Game Play Analysis II		54.7%	Easy
	520	Detect Capital		52.7%	Easy
	521	Longest Uncommon Subsequence I		56.7%	Easy
	530	Minimum Absolute Difference in BST		51.3%	Easy
	532	K-diff Pairs in an Array		30.2%	Easy
	538	Convert BST to Greater Tree		52.1%	Easy
	541	Reverse String II		45.9%	Easy
	543	Diameter of Binary Tree		47.3%	Easy
	551	Student Attendance Record I		45.5%	Easy
	557	Reverse Words in a String III		65.1%	Easy
	558	Quad Tree Intersection		41.8%	Easy
	559	Maximum Depth of N-ary Tree		66.1%	Easy
	561	Array Partition I		69.8%	Easy
	563	Binary Tree Tilt		47.2%	Easy
	566	Reshape the Matrix		59.3%	Easy
	572	Subtree of Another Tree		42.1%	Easy
	575	Distribute Candies		60.1%	Easy
	577	Employee Bonus		60.9%	Easy
	581	Shortest Unsorted Continuous Subarray		30.4%	Easy
	584	Find Customer Referee		68.3%	Easy
	586	Customer Placing the Largest Number of Orders		67.5%	Easy
	589	N-ary Tree Preorder Traversal		68.7%	Easy
	590	N-ary Tree Postorder Traversal		68.7%	Easy
	594	Longest Harmonious Subsequence		44.4%	Easy
	595	Big Countries		74.6%	Easy
	596	Classes More Than 5 Students		36.3%	Easy
	597	Friend Requests I: Overall Acceptance Rate		40.0%	Easy
	598	Range Addition II		48.9%	Easy
	599	Minimum Index Sum of Two Lists		48.6%	Easy
	603	Consecutive Available Seats		59.3%	Easy
	604	Design Compressed String Iterator		35.3%	Easy
	605	Can Place Flowers		31.3%	Easy
	606	Construct String from Binary Tree		52.1%	Easy
	607	Sales Person		58.1%	Easy
	610	Triangle Judgement		61.8%	Easy
	613	Shortest Distance in a Line		73.6%	Easy
	617	Merge Two Binary Trees		71.0%	Easy
	619	Biggest Single Number		39.5%	Easy
	620	Not Boring Movies		62.9%	Easy
	624	Maximum Distance in Arrays		37.7%	Easy
	627	Swap Salary		70.3%	Easy
	628	Maximum Product of Three Numbers		46.5%	Easy
	633	Sum of Square Numbers		32.6%	Easy
	637	Average of Levels in Binary Tree		59.6%	Easy
	643	Maximum Average Subarray I		40.1%	Easy
	645	Set Mismatch		41.1%	Easy
	653	Two Sum IV - Input is a BST		53.2%	Easy
	657	Robot Return to Origin		72.1%	Easy
	661	Image Smoother		49.3%	Easy
	665	Non-decreasing Array		19.5%	Easy
	669	Trim a Binary Search Tree		60.8%	Easy
	671	Second Minimum Node In a Binary Tree		43.1%	Easy
	674	Longest Continuous Increasing Subsequence		44.7%	Easy
	680	Valid Palindrome II		34.7%	Easy
	682	Baseball Game		61.6%	Easy
	686	Repeated String Match		31.6%	Easy
	687	Longest Univalue Path		34.4%	Easy
	690	Employee Importance		54.8%	Easy
	693	Binary Number with Alternating Bits		58.2%	Easy
	696	Count Binary Substrings		54.1%	Easy
	697	Degree of an Array		51.2%	Easy
	700	Search in a Binary Search Tree		69.1%	Easy
	703	Kth Largest Element in a Stream		46.9%	Easy
	704	Binary Search		49.2%	Easy
	705	Design HashSet		55.3%	Easy
	706	Design HashMap		57.0%	Easy
	707	Design Linked List		21.0%	Easy
	709	To Lower Case		77.4%	Easy
	716	Max Stack		40.8%	Easy
	717	1-bit and 2-bit Characters		49.2%	Easy
	720	Longest Word in Dictionary		45.6%	Easy
	724	Find Pivot Index		41.7%	Easy
	728	Self Dividing Numbers		71.2%	Easy
	733	Flood Fill		51.6%	Easy
	734	Sentence Similarity		40.9%	Easy
	744	Find Smallest Letter Greater Than Target		44.4%	Easy
	746	Min Cost Climbing Stairs		48.0%	Easy
	747	Largest Number At Least Twice of Others		40.8%	Easy
	748	Shortest Completing Word		55.0%	Easy
	751	IP to CIDR		60.5%	Easy
	754	Reach a Number		33.2%	Easy
	758	Bold Words in String		43.0%	Easy
	760	Find Anagram Mappings		79.7%	Easy
	762	Prime Number of Set Bits in Binary Representation		60.2%	Easy
	766	Toeplitz Matrix		62.4%	Easy
	771	Jewels and Stones		83.6%	Easy
	783	Minimum Distance Between BST Nodes		50.9%	Easy
	784	Letter Case Permutation		58.6%	Easy
	788	Rotated Digits		55.1%	Easy
	796	Rotate String		49.2%	Easy
	800	Similar RGB Color		60.3%	Easy
	804	Unique Morse Code Words		75.0%	Easy
	806	Number of Lines To Write String		63.5%	Easy
	811	Subdomain Visit Count		66.4%	Easy
	812	Largest Triangle Area		56.6%	Easy
	819	Most Common Word		42.5%	Easy
	821	Shortest Distance to a Character		64.1%	Easy
	824	Goat Latin		58.4%	Easy
	830	Positions of Large Groups		48.1%	Easy
	832	Flipping an Image		73.2%	Easy
	836	Rectangle Overlap		47.1%	Easy
	840	Magic Squares In Grid		36.1%	Easy
	844	Backspace String Compare		46.5%	Easy
	849	Maximize Distance to Closest Person		41.5%	Easy
	852	Peak Index in a Mountain Array		70.0%	Easy
	859	Buddy Strings		27.8%	Easy
	860	Lemonade Change		50.8%	Easy
	867	Transpose Matrix		63.9%	Easy
	868	Binary Gap		59.8%	Easy
	872	Leaf-Similar Trees		63.9%	Easy
	874	Walking Robot Simulation		32.7%	Easy
	876	Middle of the Linked List		65.1%	Easy
	883	Projection Area of 3D Shapes		66.0%	Easy
	884	Uncommon Words from Two Sentences		61.2%	Easy
	888	Fair Candy Swap		56.9%	Easy
	892	Surface Area of 3D Shapes		56.5%	Easy
	893	Groups of Special-Equivalent Strings		63.3%	Easy
	896	Monotonic Array		55.6%	Easy
	897	Increasing Order Search Tree		65.7%	Easy
	905	Sort Array By Parity		72.7%	Easy
	908	Smallest Range I		64.9%	Easy
	914	X of a Kind in a Deck of Cards		33.9%	Easy
	917	Reverse Only Letters		56.0%	Easy
	922	Sort Array By Parity II		67.2%	Easy
	925	Long Pressed Name		44.6%	Easy
	929	Unique Email Addresses		69.2%	Easy
	933	Number of Recent Calls		69.4%	Easy
	937	Reorder Log Files		55.9%	Easy
	938	Range Sum of BST		78.1%	Easy
	941	Valid Mountain Array		35.2%	Easy
	942	DI String Match		69.9%	Easy
	944	Delete Columns to Make Sorted		69.4%	Easy
	949	Largest Time for Given Digits		34.4%	Easy
	953	Verifying an Alien Dictionary		56.0%	Easy
	961	N-Repeated Element in Size 2N Array		72.4%	Easy
	965	Univalued Binary Tree		66.8%	Easy
	970	Powerful Integers		39.4%	Easy
	976	Largest Perimeter Triangle		56.8%	Easy
	977	Squares of a Sorted Array		71.7%	Easy
	985	Sum of Even Numbers After Queries		62.6%	Easy
	989	Add to Array-Form of Integer		44.0%	Easy
	993	Cousins in Binary Tree		52.1%	Easy
	994	Rotting Oranges		46.3%	Easy
	997	Find the Town Judge		49.4%	Easy
	999	Available Captures for Rook		65.8%	Easy
	1002	Find Common Characters		65.7%	Easy
	1005	Maximize Sum Of Array After K Negations		50.1%	Easy
	1009	Complement of Base 10 Integer		59.0%	Easy
	1010	Pairs of Songs With Total Durations Divisible by 60		46.0%	Easy
	1013	Partition Array Into Three Parts With Equal Sum		56.1%	Easy
	1018	Binary Prefix Divisible By 5		46.8%	Easy
	1021	Remove Outermost Parentheses		75.1%	Easy
	1022	Sum of Root To Leaf Binary Numbers		59.3%	Easy
	1025	Divisor Game		64.7%	Easy
	1029	Two City Scheduling		54.3%	Easy
	1030	Matrix Cells in Distance Order		64.0%	Easy
	1033	Moving Stones Until Consecutive		37.4%	Easy
	1037	Valid Boomerang		37.4%	Easy
	1042	Flower Planting With No Adjacent		47.8%	Easy
	1046	Last Stone Weight		62.0%	Easy
	1047	Remove All Adjacent Duplicates In String		64.0%	Easy
	1050	Actors and Directors Who Cooperated At Least Three Times		71.9%	Easy
	1051	Height Checker		68.7%	Easy
	1056	Confusing Number		50.7%	Easy
	1064	Fixed Point		75.7%	Easy
	1065	Index Pairs of a String		57.7%	Easy
	1068	Product Sales Analysis I		79.3%	Easy
	1069	Product Sales Analysis II		80.2%	Easy
	1071	Greatest Common Divisor of Strings		54.3%	Easy
	1075	Project Employees I		56.8%	Easy
	1076	Project Employees II		53.1%	Easy
	1078	Occurrences After Bigram		65.1%	Easy
	1082	Sales Analysis I		70.6%	Easy
	1083	Sales Analysis II		51.3%	Easy
	1084	Sales Analysis III		52.5%	Easy
	1085	Sum of Digits in the Minimum Number		73.8%	Easy
	1086	High Five		74.6%	Easy
	1089	Duplicate Zeros		58.9%	Easy
	1099	Two Sum Less Than K		60.3%	Easy
	1103	Distribute Candies to People		60.7%	Easy
	1108	Defanging an IP Address		84.5%	Easy
	1113	Reported Posts		59.2%	Easy
	1114	Print in Order		59.0%	Easy
	1118	Number of Days in a Month		56.8%	Easy
	1119	Remove Vowels from a String		87.8%	Easy
	1122	Relative Sort Array		66.4%	Easy
	1128	Number of Equivalent Domino Pairs		45.0%	Easy
	1133	Largest Unique Number		68.7%	Easy
	1134	Armstrong Number		78.4%	Easy
	1137	N-th Tribonacci Number		60.0%	Easy
	1141	User Activity for the Past 30 Days I		54.4%	Easy
	1142	User Activity for the Past 30 Days II		35.9%	Easy
	1148	Article Views I		68.5%	Easy
	1150	Check If a Number Is Majority Element in a Sorted Array		66.3%	Easy
	1154	Day of the Year		49.4%	Easy
	1160	Find Words That Can Be Formed by Characters		69.7%	Easy
	1165	Single-Row Keyboard		86.4%	Easy
	1170	Compare Strings by Frequency of the Smallest Character		62.6%	Easy
	1173	Immediate Food Delivery I New		77.4%	Easy
	1175	Prime Arrangements		50.1%	Easy
	1176	Diet Plan Performance		42.7%	Easy