原创 LeetCode 004. Median of Two Sorted Arrays
4. Median of Two Sorted Arrays There are two sorted arrays nums1 and nums2 of size m and n respectively. Find the
原创 九大經典排序算法整理及其源代碼分享(C/C++版)
一、 9大排序算法介紹 1.1 直接插入排序(Insertion Sort) 插入排序是一種簡單直觀的排序算法。它的工作原理是通過構建有序序列,對於未排序數據在已排序序列中從前向後掃描,找到相應位置並插入。插入排序在實現上,通常採用in-
原创 LeetCode 419 BattleshipsInABoard DFS、BFS簡單的入門
419. Battleships in a Board Given an 2D board, count how many different battleships are in it. The battleships are re
原创 LeetCode 167 TwoSumII-InputArrayIsSorted
167. Two Sum II - Input array is sorted Given an array of integers that is already sorted in ascending order, find tw
原创 C/C++語言 二維數組作爲函數的參數總結
一、 情況1:實參爲二維數組. 1 二、 情況2:實參爲指針數組. 1 三、 情況3:實參爲數組指針. 2 四、 情況4:實參爲二維指針. 2 五、 總結. 3 5.1
原创 LeetCode 006 ZigZagConversion
6. ZigZag Conversion The string "PAYPALISHIRING" is written in a zigzag pattern on a given number of rows like this:
原创 LeetCode 003. Longest Substring Without Repeating Characters
3. Longest Substring Without Repeating Characters Given a string, find the length of the longest substring without r
原创 LeetCode 015 3Sum
15. 3Sum Given an array S of n integers, are there elements a, b, c in S such that a + b + c = 0? Find all uniq
原创 LeetCode 021. Merge Two Sorted Lists
21. Merge Two Sorted Lists Merge two sorted linked lists and return it as a new list. The new list should be made by sp
原创 LeetCode 067. Add Binary
67. Add Binary Given two binary strings, return their sum (also a binary string). For example, a = "11" b = "1" Retu
原创 LeetCode 009. Palindrome Number
9. Palindrome Number Determine whether an integer is a palindrome. Do this without extra space. Some hints: Could
原创 LeetCode 012 Integer to Roman
12. Integer to Roman Given an integer, convert it to a roman numeral. Input is guaranteed to be within the range from
原创 LeetCode 016 3SumClosest
16. 3Sum Closest Given an array S of n integers, find three integers in S such that the sum is closest to a given n
原创 LeetCode 013 Roman to Integer
13. Roman to Integer Given a roman numeral, convert it to an integer. Input is guaranteed to be within the range from
原创 LeetCode 008 StringToInteger(atoi)
8. String to Integer (atoi) Implement atoi to convert a string to an integer. Hint: Carefully consider all possible