07 2016 档案
摘要：137. Single Number II Total Accepted: 91077 Total Submissions: 235653 Difficulty: Medium Given an array of integers, every element appears three times
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摘要：136. Single Number Total Accepted: 140971 Total Submissions: 276396 Difficulty: Medium Given an array of integers, every element appears twice except
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摘要：268. Missing Number Total Accepted: 62408 Total Submissions: 150160 Difficulty: Medium Given an array containing n distinct numbers taken from 0, 1, 2
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摘要：190. Reverse Bits Total Accepted: 71291 Total Submissions: 242226 Difficulty: Easy Reverse bits of a given 32 bits unsigned integer. For example, give
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摘要：191. Number of 1 Bits 191. Number of 1 Bits Total Accepted: 103908 Total Submissions: 275693 Difficulty: Easy Write a function that takes an unsigned
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摘要：338. Counting Bits 338. Counting Bits Total Accepted: 35688 Total Submissions: 61823 Difficulty: Medium Given a non negative integer number num. For e
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摘要：377. Combination Sum IV 377. Combination Sum IV Total Accepted: 2547 Total Submissions: 6581 Difficulty: Medium Given an integer array with all positi
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摘要：70. Climbing Stairs 70. Climbing Stairs Total Accepted: 120408 Total Submissions: 321825 Difficulty: Easy You are climbing a stair case. It takes n st
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摘要：228. Summary Ranges 228. Summary Ranges Total Accepted: 51769 Total Submissions: 203058 Difficulty: Medium Given a sorted integer array without duplic
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摘要：17. Letter Combinations of a Phone Number 17. Letter Combinations of a Phone Number Total Accepted: 89600 Total Submissions: 300111 Difficulty: Medium
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摘要：216. Combination Sum III 216. Combination Sum III Total Accepted: 38824 Total Submissions: 102089 Difficulty: Medium Find all possible combinations of
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摘要：40. Combination Sum II 40. Combination Sum II Total Accepted: 76278 Total Submissions: 265535 Difficulty: Medium Given a collection of candidate numbe
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摘要：39. Combination Sum 39. Combination Sum Total Accepted: 102477 Total Submissions: 316416 Difficulty: Medium Given a set of candidate numbers (C) and a
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摘要：122. Best Time to Buy and Sell Stock II 122. Best Time to Buy and Sell Stock II Total Accepted: 96307 Total Submissions: 221716 Difficulty: Medium Say
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摘要：337. House Robber III 337. House Robber III Total Accepted: 18475 Total Submissions: 47725 Difficulty: Medium The thief has found himself a new place
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摘要：213. House Robber II 213. House Robber II Total Accepted: 33705 Total Submissions: 106420 Difficulty: Medium Note: This is an extension of House Robbe
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摘要：198. House Robber 198. House Robber Total Accepted: 80861 Total Submissions: 227576 Difficulty: Easy You are a professional robber planning to rob hou
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摘要：152. Maximum Product Subarray 152. Maximum Product Subarray Total Accepted: 65740 Total Submissions: 286731 Difficulty: Medium Find the contiguous sub
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摘要：入门教程：https://guides.github.com/activities/hello-world/#merge
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摘要：53. Maximum Subarray 53. Maximum Subarray Total Accepted: 123212 Total Submissions: 331027 Difficulty: Medium Find the contiguous subarray within an a
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摘要：121. Best Time to Buy and Sell Stock 121. Best Time to Buy and Sell Stock Total Accepted: 115636 Total Submissions: 313848 Difficulty: Easy Say you ha
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摘要：34. Search for a Range Total Accepted: 91630 Total Submissions: 308192 Difficulty: Medium Given a sorted array of integers, find the starting and endi
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摘要：106. Construct Binary Tree from Inorder and Postorder Traversal 106. Construct Binary Tree from Inorder and Postorder Traversal Total Accepted: 60461
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摘要：18. 4Sum 18. 4Sum Total Accepted: 80288 Total Submissions: 328279 Difficulty: Medium Given an array S of n integers, are there elements a, b, c, and d
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摘要：15. 3Sum 15. 3Sum Total Accepted: 130571 Total Submissions: 670539 Difficulty: Medium Given an array S of n integers, are there elements a, b, c in S
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摘要：16. 3Sum Closest 16. 3Sum Closest Total Accepted: 85780 Total Submissions: 289017 Difficulty: Medium Given an array S of n integers, find three intege
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摘要：345. Reverse Vowels of a String 345. Reverse Vowels of a String Total Accepted: 30572 Total Submissions: 84744 Difficulty: Easy Write a function that
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摘要：344. Reverse String 344. Reverse String Total Accepted: 56722 Total Submissions: 96534 Difficulty: Easy Write a function that takes a string as input
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摘要：278. First Bad Version 278. First Bad Version Total Accepted: 52704 Total Submissions: 228913 Difficulty: Easy You are a product manager and currently
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摘要：374. Guess Number Higher or Lower 374. Guess Number Higher or Lower Total Accepted: 7396 Total Submissions: 23391 Difficulty: Easy We are playing the
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摘要：113. Path Sum II 113. Path Sum II Total Accepted: 88034 Total Submissions: 302190 Difficulty: Medium Given a binary tree and a sum, find all root-to-l
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摘要：257. Binary Tree Paths 257. Binary Tree Paths Total Accepted: 56430 Total Submissions: 185972 Difficulty: Easy Given a binary tree, return all root-to
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摘要：112. Path Sum 112. Path Sum Total Accepted: 112241 Total Submissions: 352808 Difficulty: Easy Given a binary tree and a sum, determine if the tree has
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摘要：1. Two Sum 1. Two Sum Total Accepted: 259837 Total Submissions: 1043139 Difficulty: Easy Given an array of integers, return indices of the two numbers
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摘要：203. Remove Linked List Elements 203. Remove Linked List Elements Total Accepted: 71491 Total Submissions: 242394 Difficulty: Easy Remove all elements
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摘要：283. Move Zeroes 283. Move Zeroes Total Accepted: 98144 Total Submissions: 216474 Difficulty: Easy Given an array nums, write a function to move all 0
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摘要：313. Super Ugly Number 313. Super Ugly Number Total Accepted: 18129 Total Submissions: 51091 Difficulty: Medium Write a program to find the nth super
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摘要：27. Remove Element 27. Remove Element Total Accepted: 129784 Total Submissions: 372225 Difficulty: Easy Given an array and a value, remove all instanc
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摘要：26. Remove Duplicates from Sorted Array 26. Remove Duplicates from Sorted Array Total Accepted: 142614 Total Submissions: 418062 Difficulty: Easy Give
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摘要：88. Merge Sorted Array 88. Merge Sorted Array Total Accepted: 109369 Total Submissions: 359044 Difficulty: Easy Given two sorted integer arrays nums1
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摘要：264. Ugly Number II 264. Ugly Number II Total Accepted: 35338 Total Submissions: 120258 Difficulty: Medium Write a program to find the n-th ugly numbe
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摘要：204. Count Primes 204. Count Primes Total Accepted: 71783 Total Submissions: 285211 Difficulty: Easy Description: Count the number of prime numbers le
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摘要：263. Ugly Number 263. Ugly Number Total Accepted: 65061 Total Submissions:173755 Difficulty: Easy Write a program to check whether a given number is a
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摘要：202. Happy Number 202. Happy Number Total Accepted: 78171 Total Submissions: 208635 Difficulty: Easy Write an algorithm to determine if a number is "h
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摘要：258. Add Digits 258. Add Digits Total Accepted: 108804 Total Submissions: 221342 Difficulty: Easy Given a non-negative integer num, repeatedly add all
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摘要：23. Merge k Sorted Lists 23. Merge k Sorted Lists Total Accepted: 92690 Total Submissions:385821 Difficulty: Hard Merge k sorted linked lists and retu
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摘要：21. Merge Two Sorted Lists 21. Merge Two Sorted Lists Total Accepted: 138746 Total Submissions: 383218 Difficulty: Easy Merge two sorted linked lists
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摘要：371. Sum of Two Integers 371. Sum of Two Integers Total Accepted: 10773 Total Submissions:20732 Difficulty: Easy Calculate the sum of two integers a a
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摘要：1. 数的原码补码转换 计算机运算中，数都是由补码表示的。正数的补码就是原码；负数的补码就是各位（包括符号位）取反，再加上1。假设数是8位的，最高位为符号位。1的补码是0x00000001，-3的补码是0xFFFFFFFD。 如果由补码转化为原数：正数不变；负数的补码是各位（包括符号位）取反，再加上
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摘要：373. Find K Pairs with Smallest Sums 373. Find K Pairs with Smallest Sums Total Accepted: 1453 Total Submissions: 5789 Difficulty: Medium You are give
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摘要：priority_queue本质是一个堆。 1. 头文件是#include<queue> 2. 关于priority_queue中元素的比较 模板申明带3个参数：priority_queue<Type, Container, Functional>，其中Type 为数据类型，Container为保存
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摘要：110. Balanced Binary Tree 110. Balanced Binary Tree Total Accepted: 119517 Total Submissions:345415 Difficulty: Easy Given a binary tree, determine if
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摘要：104. Maximum Depth of Binary Tree 104. Maximum Depth of Binary Tree Total Accepted: 157320 Total Submissions:323303 Difficulty: Easy Given a binary tr
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摘要：111. Minimum Depth of Binary Tree 111. Minimum Depth of Binary Tree Total Accepted: 114343 Total Submissions:368035 Difficulty: Easy Given a binary tr
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摘要：64. Minimum Path Sum 64. Minimum Path Sum Total Accepted: 76284 Total Submissions:214404 Difficulty: Medium Given a m x n grid filled with non-negativ
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摘要：63. Unique Paths II 63. Unique Paths II Total Accepted: 70691 Total Submissions:237311 Difficulty: Medium Follow up for "Unique Paths": Now consider i
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摘要：62. Unique Paths 62. Unique Paths Total Accepted: 93894 Total Submissions:253450 Difficulty: Medium A robot is located at the top-left corner of a m x
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摘要：29. Divide Two Integers 29. Divide Two Integers Total Accepted: 70841 Total Submissions: 448890 Difficulty: Medium Divide two integers without using m
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摘要：50. Pow(x, n) 50. Pow(x, n) Total Accepted: 96891 Total Submissions: 348858 Difficulty: Medium Implement pow(x, n). Implement pow(x, n). Implement pow
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摘要：69. Sqrt(x) 69. Sqrt(x) Total Accepted: 99997 Total Submissions: 388728 Difficulty: Medium Implement int sqrt(int x). Compute and return the square ro
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摘要：238. Product of Array Except Self Total Accepted: 51070 Total Submissions: 116543 Difficulty: Medium Given an array of n integers where n > 1, nums, r
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摘要：103. Binary Tree Zigzag Level Order Traversal 103. Binary Tree Zigzag Level Order Traversal Total Accepted: 64518 Total Submissions: 219636 Difficulty
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摘要：290. Word Pattern Total Accepted: 42115 Total Submissions: 140014 Difficulty: Easy 290. Word Pattern Given a pattern and a string str, find if str fol
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摘要：205. Isomorphic Strings 205. Isomorphic Strings Total Accepted: 62899 Total Submissions: 206548 Difficulty: Easy Given two strings s and t, determine
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