[LeetCode]386. Lexicographical Numbers 解题报告(Python) 标签(空格分隔): LeetCode 作者: 负雪明烛 id: fuxuemingzhu 个人博客: http://fuxuemingzhu.me/ 题目地址:https://leetcode.com/problems/lexicographical-numbers/description/ 题目描述: Given an integer n, return 1 - n in lexicogra…

https://leetcode.com/problems/lexicographical-numbers/description/ 前20个是 1, 10, 11, 12, 13, 14, .....19 2, 20, 3, 4, 5, 6, ....9 class Solution { public: vector<int> lexicalOrder(int n) { vector<int> ans; ; ; i <= n; ++i) { ans.push_back(cu…

给定一个整数 n, 返回从 1 到 n 的字典顺序.例如,给定 n =1 3,返回 [1,10,11,12,13,2,3,4,5,6,7,8,9] .请尽可能的优化算法的时间复杂度和空间复杂度. 输入的数据 n 小于等于 5,000,000.详见:https://leetcode.com/problems/lexicographical-numbers/description/ C++: class Solution { public: vector<int> lexicalOrder(int…

Given an integer n, return 1 - n in lexicographical order. For example, given 13, return: [1,10,11,12,13,2,3,4,5,6,7,8,9]. Please optimize your algorithm to use less time and space. The input size may be as large as 5,000,000. 按字典序求所给范围数字列表 回溯,dfs cl…

［抄题］: Given an integer n, return 1 - n in lexicographical order. For example, given 13, return: [1,10,11,12,13,2,3,4,5,6,7,8,9]. Please optimize your algorithm to use less time and space. The input size may be as large as 5,000,000. [暴力解法]: 时间分析: 空间分…

用DFS来做,先弄开头是1的,再弄开头是1的里面开头是1的,再开头是1的里面开头是1的里的开头是1的,再... 是吧-- 比N大了BREAK就行. 注意第一个循环是1-9,往后的循环是0-9. public class Solution { public List<Integer> lexicalOrder(int n) { List<Integer> res = new ArrayList<>(); for(int i = 1; i < 10; i++) { h…

方法1:通过get()方法获取属性值 package com.sxd.test.controller; public class FirstCa{ private Integer num; private String name; private Boolean flag; public Integer getNum() { return num; } public void setNum(Integer num) { this.num = num; } public String getNam…

字典序排序 给定一个整数 n, 返回从 1 到 n 的字典顺序. 例如, 给定 n =1 3,返回 [1,10,11,12,13,2,3,4,5,6,7,8,9] . 请尽可能的优化算法的时间复杂度和空间复杂度. 输入的数据 n 小于等于 5,000,000. 解题思路 用函数栈(递归)用来去完成字典序排序. import java.util.ArrayList; import java.util.List; public class Solution { public List<Integer…

/// <summary> /// 微信支付MD5签名算法,ASCII码字典序排序0,A,B,a,b /// </summary> /// <param name="InDict">待签名名键值对</param> /// <param name="TenPayV3_Key">用于签名的Key</param> /// <returns>MD5签名字符串</returns>…

Given an integer n, return 1 - n in lexicographical order. For example, given 13, return: [1,10,11,12,13,2,3,4,5,6,7,8,9]. Please optimize your algorithm to use less time and space. The input size may be as large as 5,000,000. 给定一个整数 n, 返回从 1 到 n 的字典…

Given an integer n, return 1 - n in lexicographical order. For example, given 13, return: [1,10,11,12,13,2,3,4,5,6,7,8,9]. Please optimize your algorithm to use less time and space. The input size may be as large as 5,000,000. 这道题给了我们一个整数n,让我们把区间[1,n…

Given an integer n, return 1 - n in lexicographical order. For example, given 13, return: [1,10,11,12,13,2,3,4,5,6,7,8,9]. Please optimize your algorithm to use less time and space. The input size may be as large as 5,000,000. Solution 1: If we look…

Given an integer n, return 1 - n in lexicographical order. For example, given 13, return: [1,10,11,12,13,2,3,4,5,6,7,8,9]. Please optimize your algorithm to use less time and space. The input size may be as large as 5,000,000. 方法1: 利用排序,把数字按照lexicogr…

问题描述 Given an integer n, return 1 - n in lexicographical order. For example, given 13, return: [1,10,11,12,13,2,3,4,5,6,7,8,9]. Please optimize your algorithm to use less time and space. The input size may be as large as 5,000,000. Java算法实现 public cl…

Next Permutation  Implement next permutation, which rearranges numbers into the lexicographically next greater permutation of numbers. If such arrangement is not possible, it must rearrange it as the lowest possible order (ie, sorted in ascending ord…

使用string数组 #include<iostream> #include<string> #include<algorithm> using namespace std; bool cmp(string a,string b){ return a < b; //按字典序从小到大排列 } int main(){ string s[3]; s[0] = "wu";s[1]="jia";s[2]="jun"…

import java.util.Comparator; import java.util.ArrayList; import java.util.Collections; public class Tester { public static void main(String[] args) { ArrayList list = new ArrayList(); list.add("东海湾"); list.add("傲来"); list.add("东海湾…

#include <iostream> #include <cassert> using namespace std; ; char a[max_len]; void topK(int n, int m, int& k, int i) { || i >= m) return; ; j < ; j++) { a[i] = j + '; a[i+] = '\0'; int v = atoi(a); && v <= n && k…

代码 <?php $data=array("api_ticket"=>"IpK_1T69hDhZkLQTlwsAXzJqxGE_7RuU_tjnx8rWC9f0pE-MqivB6oaKc0y75t9FM784OsySASrixvFffCl_3g","appid"=>"wx7f4447867a74c900","location_id"=>"0","time…

#include <bits/stdc++.h> #include <iostream> using namespace std; ; ; int n; int maxj; struct node { int id; }; bool operator < (const node &a)const { ; --j) if(num[j] != a.num[j]) return num[j] > a.num[j]; ; } } p[]; string s[MAXN];…

刷题备忘录,for bug-free leetcode 396. Rotate Function 题意: Given an array of integers A and let n to be its length. Assume Bk to be an array obtained by rotating the array A k positions clock-wise, we define a "rotation function" F on A as follow: F(k…

刷题备忘录,for bug-free 招行面试题--求无序数组最长连续序列的长度,这里连续指的是值连续--间隔为1,并不是数值的位置连续 问题: 给出一个未排序的整数数组,找出最长的连续元素序列的长度. 如: 给出[100, 4, 200, 1, 3, 2], 最长的连续元素序列是[1, 2, 3, 4].返回它的长度:4. 你的算法必须有O(n)的时间复杂度 . 解法: 初始思路 要找连续的元素,第一反应一般是先把数组排序.但悲剧的是题目中明确要求了O(n)的时间复杂度,要做一次排序,是不能达…

终于将LeetCode的免费题刷完了,真是漫长的第一遍啊,估计很多题都忘的差不多了,这次开个题目汇总贴,并附上每道题目的解题连接,方便之后查阅吧~ 477 Total Hamming Distance 44.10% Meidum 475 Heaters  30.20% Easy 474 Ones and Zeroes  34.90% Meidum 473 Matchsticks to Square  31.80% Medium 472 Concatenated Words 29.20% Hard…

169. Majority Element Given an array of size n, find the majority element. The majority element is the element that appears more than ⌊ n/2 ⌋ times. You may assume that the array is non-empty and the majority element always exist in the array. Credit…

突然很想刷刷题,LeetCode是一个不错的选择,忽略了输入输出,更好的突出了算法,省去了不少时间. dalao们发现了任何错误,或是代码无法通过,或是有更好的解法,或是有任何疑问和建议的话,可以在对应的随笔下面评论区留言,我会及时处理,在此谢过了. 过程或许会很漫长,也很痛苦,慢慢来吧. 编号 题名 过题率 难度 1 Two Sum 0.376 Easy 2 Add Two Numbers 0.285 Medium 3 Longest Substring Without Repeating C…

1. Array 基础 27 Remove Element 26 Remove Duplicates from Sorted Array 80 Remove Duplicates from Sorted Array II 277 Find the Celebrity 189 Rotate Array 41 First Missing Positive 299 Bulls and Cows 134 Gas Station 118 Pascal's Triangle 很少考 119 Pascal's…

一起过来排好队,进来挨打 1.Leetcode tag-LinkList 109.convert sorted list to binary search tree 2Leetcode tag-Array386. Lexicographical Numbers /** * Definition for singly-linked list. * struct ListNode { * int val; * ListNode *next; * ListNode(int x) : val(x), n…

All LeetCode Questions List(Part of Answers, still updating) 题目汇总及部分答案(持续更新中) Leetcode problems classified by company 题目按公司分类(Last updated: October 2, 2017) .   Top Interview Questions # Title Difficulty Acceptance 1 Two Sum Medium 17.70% 2 Add Two N…

All LeetCode Questions List 题目汇总 Sorted by frequency of problems that appear in real interviews. Last updated: October 2, 2017Google (214)534 Design TinyURL388 Longest Absolute File Path683 K Empty Slots340 Longest Substring with At Most K Distinct C…

源代码地址:https://github.com/hopebo/hopelee 语言:C++ 301. Remove Invalid Parentheses Remove the minimum number of invalid parentheses in order to make the input string valid. Return all possible results. Note: The input string may contain letters other tha…