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2019年2月9日
19.2.9 [LeetCode 61] Rotate List
摘要： Given a linked list, rotate the list to the right by k places, where k is non-negative. Example 1: Example 2: 题意 把链表循环右移k个 题解 1 class Solution { 2 pub 阅读全文
posted @ 2019-02-09 16:21 TobicYAL 阅读(168) 评论(0) 推荐(0) 编辑
19.2.9 [LeetCode 60] Permutation Sequence
摘要： The set [1,2,3,...,n] contains a total of n! unique permutations. By listing and labeling all of the permutations in order, we get the following seque 阅读全文
posted @ 2019-02-09 16:09 TobicYAL 阅读(231) 评论(0) 推荐(0) 编辑
19.2.9 [LeetCode 59] Spiral Matrix II
摘要： Given a positive integer n, generate a square matrix filled with elements from 1 to n2 in spiral order. Example: 1 class Solution { 2 public: 3 vector 阅读全文
posted @ 2019-02-09 15:41 TobicYAL 阅读(386) 评论(0) 推荐(0) 编辑
19.2.9 [LeetCode 58] Length of Last Word
摘要： Given a string s consists of upper/lower-case alphabets and empty space characters ' ', return the length of last word in the string. If the last word 阅读全文
posted @ 2019-02-09 15:29 TobicYAL 阅读(154) 评论(0) 推荐(0) 编辑
19.2.9 [LeetCode 57] Insert Interval
摘要： Given a set of non-overlapping intervals, insert a new interval into the intervals (merge if necessary). You may assume that the intervals were initia 阅读全文
posted @ 2019-02-09 15:20 TobicYAL 阅读(156) 评论(0) 推荐(0) 编辑
2019年2月8日
19.2.8 [LeetCode 56] Merge Intervals
摘要： Given a collection of intervals, merge all overlapping intervals. Example 1: Example 2: 题意 合并重合的闭区间 题解 1 bool operator <(const Interval& a, const Inte 阅读全文
posted @ 2019-02-08 19:34 TobicYAL 阅读(127) 评论(0) 推荐(0) 编辑
19.2.8 [LeetCode 55] Jump Game
摘要： Given an array of non-negative integers, you are initially positioned at the first index of the array. Each element in the array represents your maxim 阅读全文
posted @ 2019-02-08 17:47 TobicYAL 阅读(145) 评论(0) 推荐(0) 编辑
19.2.8 [LeetCode 54] Spiral Matrix
摘要： Given a matrix of m x n elements (m rows, n columns), return all elements of the matrix in spiral order. Example 1: Example 2: 题意 顺时针螺旋输出数组 题解 1 class 阅读全文
posted @ 2019-02-08 17:37 TobicYAL 阅读(188) 评论(0) 推荐(0) 编辑
19.2.8 [LeetCode 53] Maximum Subarray
摘要： Given an integer array nums, find the contiguous subarray (containing at least one number) which has the largest sum and return its sum. Example: Foll 阅读全文
posted @ 2019-02-08 17:08 TobicYAL 阅读(137) 评论(0) 推荐(0) 编辑
19.2.8 [LeetCode 52] N-Queens II
摘要： The n-queens puzzle is the problem of placing n queens on an n×n chessboard such that no two queens attack each other. Given an integer n, return the 阅读全文
posted @ 2019-02-08 16:32 TobicYAL 阅读(176) 评论(0) 推荐(0) 编辑
19.2.8 [LeetCode 51] N-Queens
摘要： The n-queens puzzle is the problem of placing n queens on an n×n chessboard such that no two queens attack each other. Given an integer n, return all 阅读全文
posted @ 2019-02-08 16:25 TobicYAL 阅读(249) 评论(0) 推荐(0) 编辑
2019年2月7日
19.2.7 [LeetCode 50] Pow(x, n)
摘要： Implement pow(x, n), which calculates x raised to the power n (xn). Example 1: Example 2: Example 3: Note: -100.0 < x < 100.0 n is a 32-bit signed int 阅读全文
posted @ 2019-02-07 20:26 TobicYAL 阅读(176) 评论(0) 推荐(0) 编辑
19.2.7 [LeetCode 49] Group Anagrams
摘要： Given an array of strings, group anagrams together. Example: 题意 把由相同字母出现相同次数组成的字符串归到一起(数据可能重复) 题解 一开始我当成了任何一种字母只会出现一次做了,用的是long型作二进制用,自然WA了,其实后来可以用字符串 阅读全文
posted @ 2019-02-07 19:17 TobicYAL 阅读(145) 评论(0) 推荐(0) 编辑
19.2.7 [LeetCode 48] Rotate Image
摘要： You are given an n x n 2D matrix representing an image. Rotate the image by 90 degrees (clockwise). Note: You have to rotate the image in-place, which 阅读全文
posted @ 2019-02-07 18:28 TobicYAL 阅读(166) 评论(0) 推荐(0) 编辑
19.2.7 [LeetCode 47] Permutations II
摘要： Given a collection of numbers that might contain duplicates, return all possible unique permutations. Example: 1 class Solution { 2 public: 3 vector<v 阅读全文
posted @ 2019-02-07 17:36 TobicYAL 阅读(149) 评论(0) 推荐(0) 编辑
19.2.7 [LeetCode 46] Permutations
摘要： Given a collection of distinct integers, return all possible permutations. Example: 1 class Solution { 2 public: 3 void build(vector<bool>visited, vec 阅读全文
posted @ 2019-02-07 17:33 TobicYAL 阅读(144) 评论(0) 推荐(0) 编辑
19.2.7 [LeetCode 45] Jump Game II
摘要： Given an array of non-negative integers, you are initially positioned at the first index of the array. Each element in the array represents your maxim 阅读全文
posted @ 2019-02-07 17:02 TobicYAL 阅读(250) 评论(0) 推荐(0) 编辑
2019年2月4日
19.2.4 [LeetCode 44] Wildcard Matching
摘要： Given an input string (s) and a pattern (p), implement wildcard pattern matching with support for '?' and '*'. The matching should cover the entire in 阅读全文
posted @ 2019-02-04 14:55 TobicYAL 阅读(222) 评论(0) 推荐(0) 编辑
19.2.4 [LeetCode 43] Multiply Strings
摘要： Given two non-negative integers num1 and num2 represented as strings, return the product of num1 and num2, also represented as a string. Example 1: Ex 阅读全文
posted @ 2019-02-04 14:25 TobicYAL 阅读(158) 评论(0) 推荐(0) 编辑
19.2.4 [LeetCode 42] Trapping Rain Water
摘要： Given n non-negative integers representing an elevation map where the width of each bar is 1, compute how much water it is able to trap after raining. 阅读全文
posted @ 2019-02-04 14:07 TobicYAL 阅读(162) 评论(0) 推荐(0) 编辑
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