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大家一起Leetcode

使用步驟

  1. 下面挑一題
  2. AC後在指定資料夾建個屬於你名字的檔名.副檔名 (Example: Kellly.cpp, Dennaolan.sql)
  3. 把檔案網址貼在readme

色塊標示題目難易度

  • Hard Hard
  • Medium Medium
  • Easy Easy

題目清單

Easy 1_Two Sum

3k4733294.c, Dennaolan.cpp, Kellly.c, Kellly.cpp, tkd9714.php, oliver.py

Medium 2_Add Two Numbers

Dennaolan.cpp, Kellly.cpp, tkd9714.php

Medium 3_Longest Substring Without Repeating Characters

Dennaolan.cpp, Dennaolan(list).cpp, Kellly.cpp, tkd9714.php

Hard 4_Median of Two Sorted Arrays

Kellly.cpp, tkd9714.php

Medium 5_Longest Palindromic Substring

Dennaolan.cpp, Kellly.cpp, Kellly(middle).cpp, tkd9714.php3, k4733294.c

Medium 6_ZigZag Conversion

Dennaolan.cpp, Kellly.cpp, tkd9714.php, tkd9714(double loop).php, vegeman.js

Easy 7_Reverse Integer

3k4733294.c, Dennaolan.cpp, Kellly.cpp, tkd9714.php, oliver.py, vegeman.js

Medium 8_String to Integer (atoi)

Dennaolan.cpp, tkd9714.php, Kellly.cpp, vegeman.js

Easy 9_Palindrome Number

3k4733294.c, Dennaolan.cpp, Kellly(list).cpp, Kellly(math).cpp, Kellly.(stack&queue).cpp, tkd9714.php, oliver.py

Hard 10_Regular Expression Matching

Kellly.cpp, Kellly(DynamicProgramming).cpp, tkd9714.php

Medium 11_Container With Most Water

Dennaolan.cpp, Kellly(ignoreLowerHeight).cpp, Kellly.cpp, tkd9714.php

Medium 12_Integer to Roman

Dennaolan.cpp, tkd9714.php, tkd9714(faster).php, Kellly.cpp

Easy 13_Roman to Integer

3k4733294.c, Dennaolan.cpp, Kellly.cpp, tkd9714.php

Easy 14_Longest Common Prefix

Dennaolan.cpp, Kellly.cpp, tkd9714.php, oliver.py, 3k4733294.c

Medium 15_3Sum

Dennaolan.cpp, Dennnaolan.py, tkd9714.php, Kellly.cpp, vegeman.js

Medium 16 3Sum Closest

tkd9714.php

Medium 17 Letter Combinations of a Phone Number

Dennaolan.py, tkd9714.php, tkd9714(simplify).php

Medium 19 Remove Nth Node From End of List

tkd9714.php

Easy 20_Valid Parentheses

Dennaolan.cpp, tkd9714.php, 3k4733294.c, Kellly.cpp

Easy 21_Merge Two Sorted Lists

Dennaolan.cpp, oliver.py, tkd9714.php, 3k4733294.c, Kellly.cpp

Medium 22 Generate Parentheses

tkd9714.php

Hard 23 Merge k Sorted Lists

tkd9714.php

Medium 24 Swap Nodes in Pairs

tkd9714.php, vegeman.js

Hard 25 Reverse Nodes in k-Group

tkd9714.php, tkd9714(splstack).php

Easy 26_Remove Duplicates from Sorted Array

Dennaolan.cpp, tkd9714.php, 3k4733294.c, Kellly.cpp

Easy 27_Remove Element

Dennaolan.cpp, tkd9714.php, 3k4733294.c, Kellly.cpp

Easy 28_Implement strStr()

Dennaolan.cpp, tkd9714.php, 3k4733294.c, Kellly.cpp

Medium 29_Divide Two Integers

tkd9714.php

Medium 31_Next Permutation

Kellly.cpp, tkd9714.php

Hard 32_Longest Valid Parentheses

tkd9714.php, Kellly.cpp

Medium 33_Search in Rotated Sorted Array

tkd9714.php, Kellly.cpp

Medium 34_Find First and Last Position of Element in Sorted Array

tkd9714.php

Easy 35_Search Insert Position

Dennaolan.cpp, tkd9714.php, 3k4733294.c, Kellly.cpp

Easy 38_Count and Say

Dennaolan.cpp, tkd9714.php, Kellly.cpp

Hard 44_Wildcard Matching

Kellly.cpp

Medium 50_Pow(x, n)

Dennaolan.py

Easy 53_Maximum Subarray

Kellly.cpp

Easy 58_Length of Last Word

Kellly.cpp

Easy 66_Plus One

Kellly.cpp

Easy 67_Add Binary

Kellly.cpp

Easy 69_Sqrt(x)

Kellly.cpp

Easy 70_Climbing Stairs

Kellly.cpp

Easy 83_Remove Duplicates from Sorted List

Kellly.cpp

Easy 88_Merge Sorted Array

Kellly.cpp, vegeman.js

Easy 100_Same Tree

Kellly.cpp

Easy 101_Symmetric Tree

Kellly.cpp

Easy 104_Maximum Depth of Binary Tree

Kellly.cpp

Easy 107_Binary Tree Level Order Traversal II

Kellly.cpp

Easy 108_Convert Sorted Array to Binary Search Tree

Kellly.cpp

Easy 110_Balanced Binary Tree

Kellly.cpp

Easy 111_Minimum Depth of Binary Tree

Kellly.cpp

Easy 118_Pascal's Triangle

Kellly.cpp

Easy 119_Pascal's Triangle II

Kellly.cpp

Easy 121_Best Time to Buy and Sell Stock

Kellly.cpp

Easy 122_Best Time to Buy and Sell Stock II

Kellly.cpp

Easy 125_Valid Palindrome

Kellly.cpp

Easy 136_Single Number

Kellly.cpp

Easy 141_Linked List Cycle

Kellly.cpp

Easy 155_Min Stack

Kellly.cpp

Easy 160_Intersection of Two Linked Lists

Kellly.cpp

Easy 167_Two Sum II - Input array is sorted

Kellly.cpp

Easy 168_Excel Sheet Column Title

Kellly.cpp

Easy 169_Majority Element

Kellly.cpp

Easy 171_Excel Sheet Column Number

Kellly.cpp

Easy 172_Factorial Trailing Zeroes

Kellly.cpp

Easy 175_Combine Two Tables

Kellly.sql

Easy 176_Second Highest Salary

Kellly.sql

Easy 181_Employees Earning More Than Their Managers

Kellly.sql

Easy 182_Duplicate Emails

Kellly.sql

Easy 183_Customers Who Never Order

Kellly.sql

Easy 198_House Robber

Kellly.cpp

Easy 217 Contains Duplicate

Kellly.js

Medium 241 Different Ways to Add Parentheses

Alan.java

Easy 226 Invert Binary Tree

Kellly.js

Medium 238_Product of Array Except Self

vegeman.js

Easy 278_First Bad Version

Dennaolan.cpp

Easy 303_Range Sum Query - Immutable

Kellly.cpp

Easy 392_Is Subsequence

Kellly.cpp

Easy 595_Big Countries

Dennaolan.sql, Kellly.sql, tkd9714.sql

Easy 709_To Lower Case

3k4733294.c, Dennaolan.cpp, Kellly.cpp, tkd9714.php

Easy 746_Min Cost Climbing Stairs

Kellly.cpp

Easy 771_Jewels and Stones

3k4733294.cpp, Dennaolan.cpp, Kellly.cpp, tkd9714.php

Easy 804_Unique Morse Code Words

Dennaolan.cpp, Kellly.cpp, tkd9714.php, 3k4733294.c

Easy 832_Flipping an Image

Dennaolan.cpp, Kellly.cpp, tkd9714.php, 3k4733294.c

Easy 905_Sort Array By Parity

Dennaolan.cpp, Kellly.cpp, tkd9714.php, 3k4733294.c

Easy 929_Unique Email Addresses

Dennaolan.cpp, Kellly.cpp, tkd9714.php

Easy 938_Range Sum of BST

Dennaolan.cpp, Kellly.cpp

Easy 961_N-Repeated Element in Size 2N Array

Dennaolan.cpp, Kellly.cpp, tkd9714.php

Easy 977_Squares of a Sorted Array

Dennaolan.cpp, tkd9714.php, Kellly.cpp

Easy 1021_Remove Outermost Parentheses

Dennaolan.cpp, Kellly.cpp

leetcode's People

Contributors

agby avatar alanchiou avatar dennaolan avatar housemeow avatar k4733294 avatar oiloiloil avatar tkd9714 avatar vegeman avatar

Stargazers

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Watchers

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Forkers

dennaolan

leetcode's Issues

771_Jewels_and_Stones

hi kelly master,
How do you do of this question?
Please promote your thinking.

Thank you
Madeon Liu

1_Two Sum/3k4733294.c

1.The different i found
-the function input parameter is different with other solution we found at google. like
http://johnsonko.com/blog/2018/10/28/leetcode-1-two-sum-in-c-cpp/

-the function input is
int* twoSum(int* nums, int numsSize, int target) {

-the leetcode version now are
int* twoSum(int* nums, int numsSize, int target, int* returnSize){

2.Still issue we get
-Runtime Error Message:
AddressSanitizer: heap-buffer-overflow on address 0x602000000038 at pc 0x0000004050a3 bp 0x7ffc72660030 sp 0x7ffc72660028

-The full error message like this
https://github.com/google/sanitizers/wiki/AddressSanitizerExampleHeapOutOfBounds

Thank you

time out

on this case has time out

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Week-1

知識點:

  • BigO 計算
  • 五大演算法策略
  • Binary Tree
  • 雜湊的概念

基本練習

  • Array
  • LinkedList
  • Stack & Queue
  • Hash
  • BFS/DFS Binary tree

練習基本-排序

  • bubble sort
  • insertion sort
  • selection sort

5_Longest Palindromic Substring/Dennaolan.cpp

Hi everyone, these are some optimal question for you.
In the two version of Question 5's solutions have the optimal problem that can't attempt to pass.
Please optimal both source code and try not to change the architecture.

Best regards

Name rules fix

hi @oiloiloil,
some commit result must be modified.
1.the file name both two files is not fit name rules
2.add the new question relation at README.
Thank you,

Regard,

Week-2

知識點:

  • hash & set
  • Binary Search Tree
  • Balanced Tree
    • AVL Tree
    • 2-3 B-Tree
    • 2-3-4 B-Tree
    • 紅黑樹
  • Graph
    • 無向 無環
    • 點 邊 度 加權
    • 鄰接矩陣 串列
    • 遍歷
  • DP
    • 方法
    • DAG

基本練習

  • Heap
  • Quick Sort
  • Merge Sort
  • 知識點練習

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