distinct characters queries

1234D.Distinct Characters Queries（树状数组）

你有一个字符串s组成的小写拉丁字母和q查询这个字符串。回想一下，字符串s的子字符串s[l;r]是字符串slsl+1…sr。例如，“codeforce”的子字符串是“code”、“force”、“f”、“For”，而不是“coder”和“top”。有两种查询类型: 1 pos c(1≤pos≤|s

字符串

i++

子字符串

子串

#include

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mb5fdb0fbba4f73

2020-04-12 20:47:00

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1234D - Distinct Characters Queries(状态压缩,线段树)

还是蛮好想的,区间修改首选线段树还是蛮好想的,区间修改首选线段树还是蛮好想的,区间修改首选线段树字母只有26个，所以可以用二进制,最多26位int都不会爆字母只有26个，所以可以用二进制,最多26位int都不会爆字母只有26个，所以可以用二进制,最多26位int都不会爆push_up的时候就用或运算,区间求和也用或运算push\_up的时候就用或运算,区间求和也用或运算push_up的时候就用或运算,区间求和也用或运算至于push_down就不用了,因为lazy标记在这里没用,我们每次对点修改至于pu

区间求和

点修改

区间修改

线段树

c++

原创

Issue!!!

2021-08-26 16:30:23

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1234D - Distinct Characters Queries(状态压缩,线段树)

还是蛮好想的,区间修改首选线段树还是蛮好想的,区间修改首选线段树还是蛮好想的,区间修改首选线段树字母只有26个，所以可以用二进制,最

区间求和

点修改

区间修改

原创

Issue!!!

2022-02-11 16:14:06

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Codeforces Round #590 (Div. 3) D. Distinct Characters Queries(线段树, 位运算)

链接: https://codeforces.com/contest/1234/problem/D 题意: You are given a string s consisting of lowercase Latin letters and q queries for this string. Re

c++

#include

线段树

编程题目

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mob604756eba0ee

2019-10-03 00:21:00

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LeetCode 1081. Smallest Subsequence of Distinct Characters

原题链接在这里：https://leetcode.com/problems/smallest-subsequence-of-distinct-characters/ 题目： Return the lexicographically smallest subsequence of text that

LeetCode

String

Stack

Greedy

sed

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mb5fe18f5282239

2019-12-03 13:44:00

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Leetcode: Longest Substring with At Most Two Distinct Characters

方法一：用HashMap, map里面存元素及其出现次数。维护一个最大长度。用两个指针，右指针一直走到出现3个dinstinct character为止。然后调整左指针删元素，直接从左往右逐个字符的删除，一直删到某个字符不会再出现。判断字符被删光就看次数是否减为了0. 采用方法：这里每个元素都会进

Leetcode

Array/String

Window

时间复杂度

两个指针

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mb5ff2f1c4b5e55

2015-01-22 13:17:00

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[leetcode] 1081. Smallest Subsequence of Distinct Characters

DescriptionReturn the lexicographically smallest subsequence of s that contains all the distinct charact

字符串

出栈

子序列

原创

是念

2022-08-12 07:13:23

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NAV开发模式之SELECT DISTINCT with Queries

摘要这个设计模式解释了如何通过queries来实现Select Distinct功能。说明当我们操作表的时候，开发者往往需要实现Select Distinct（或者Select Unique）功能。因为NAV不提供这样的机能，所以我们通过Queries来去除重复的数据。陈述问题让我审视一下VAT Entry表我们的目的是把每个分开的document产生的VAT

设计模式

NAV

翻译精选

nutcracker6

2015-03-03 17:35:04

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leetcode[159]Longest Substring with At Most Two Distinct Characters

找到最多含有两个不同字符的子串的最长长度。例如：eoeabc，最长的是eoe为3，其他都为2.例如：string s="aqaqedadcdccd";使用一个map fmap记录每个字符出现的个数，详解在程序中注释。int lengthOfLongestSubstringTwoDistinct(st...

LeetCode

字符串

i++

子串

编程题目

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mob604757008d56

2015-02-08 22:49:00

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LeetCode 159 Longest Substring with At Most Two Distinct Characters

Given a string s , find the length of the longest substring t that contains at most 2 distinct characters. Example 1: Input: "eceba" Output: 3 Explana

sliding window

it

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mb5ff591cb6ec96

2020-09-02 04:59:00

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340. Longest Substring with At Most K Distinct Characters

Given a string, find the longest substring that contains only two unique characters. For example, given "abcbbbbcccbdddadacb", the longest substring t

IT

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mob604756f6460e

2016-08-03 01:05:00

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340. Longest Substring with At Most K Distinct Characters

把上题的2换成k即可 public int lengthOfLongestSubstringKDistinct(String s, int k) { if (s == null || s.length() == 0 || k == 0) { return 0; } char[] sArr = s.t

sliding window

it

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mb5ff591cb6ec96

2020-09-02 05:00:00

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159. Longest Substring with At Most Two Distinct Characters

Given a string s , find the length of the longest substring t that contains at most 2 distinct characters. Example 1: Example 2:

其他

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mb5fed701509fd9

2018-08-11 04:55:00

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[LeetCode] 159. Longest Substring with At Most Two Distinct Characters

Given a string s , find the length of the longest substring t that contains at most 2 distinct characters. Example 1: Input: "eceba" Output: 3 Explana

string

sliding window

leetcode

hashmap

two pointer

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mob604756f0266e

2020-04-03 10:03:00

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LeetCode 340. Longest Substring with At Most K Distinct Characters

原题链接在这里：https://leetcode.com/problems/longest-substring-with-at-most-k-distinct-characters/ 题目： Given a string, find the length of the longest substri

LeetCode

Two Pointers

java

JAVA

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mb5fed409d6f1b2

2017-02-10 09:10:00

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LeetCode 159. Longest Substring with At Most Two Distinct Characters

原题链接在这里：https://leetcode.com/problems/longest-substring-with-at-most-two-distinct-characters/ 题目： Given a string, find the length of the longest subst

LeetCode

Two Pointers

Sliding Window

String

快慢指针

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mob604756e834f7

2016-02-05 01:38:00

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[LeetCode] 340. Longest Substring with At Most K Distinct Characters

Given a string, find the length of the longest substring T that contains at most k distinct characters. Example 1: Input: s = "eceba", k = 2 Output: 3

string

sliding window

leetcode

hashmap

two pointer

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mob604756f0266e

2020-04-03 09:48:00

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LeetCode "Longest Substring with At Most K Distinct Characters"

A simple variation to "Longest Substring with At Most Two Distinct Characters". A typical sliding window problem.

i++

学习

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mob604756e6cfe5

2016-04-04 02:53:00

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LeetCode "Longest Substring with At Most Two Distinct Characters"

A typical sliding window solution.class Solution { int rec[26]; // for a-z int rec1[26]; // for A-Z int cnt; int &getCnt(char c) ...

i++

学习

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mob604756fb8908

2015-08-21 13:16:00

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characters!

Having lots of gold in World of Warcraft will make the game funner and let you buy lots of stuff for

职场

休闲

characters

原创

wow12345

2008-06-19 10:57:07

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distinct characters queries

1234D.Distinct Characters Queries（树状数组）

1234D - Distinct Characters Queries(状态压缩,线段树)

1234D - Distinct Characters Queries(状态压缩,线段树)

Codeforces Round #590 (Div. 3) D. Distinct Characters Queries(线段树, 位运算)

LeetCode 1081. Smallest Subsequence of Distinct Characters

Leetcode: Longest Substring with At Most Two Distinct Characters

[leetcode] 1081. Smallest Subsequence of Distinct Characters

NAV开发模式之SELECT DISTINCT with Queries

leetcode[159]Longest Substring with At Most Two Distinct Characters

LeetCode 159 Longest Substring with At Most Two Distinct Characters

340. Longest Substring with At Most K Distinct Characters

340. Longest Substring with At Most K Distinct Characters

159. Longest Substring with At Most Two Distinct Characters

[LeetCode] 159. Longest Substring with At Most Two Distinct Characters

LeetCode 340. Longest Substring with At Most K Distinct Characters

LeetCode 159. Longest Substring with At Most Two Distinct Characters

[LeetCode] 340. Longest Substring with At Most K Distinct Characters

LeetCode "Longest Substring with At Most K Distinct Characters"

LeetCode "Longest Substring with At Most Two Distinct Characters"

characters!

[LeetCode] 159. Longest Substring with At Most Two Distinct Characters_Medium tag: Two pointers

LeetCode Top Interview Questions 340. Longest Substring with At Most K Distinct Characters (Java版;

bash characters

distinct 影响索引 distinct select

distinct

distinct 加索引 select distinct as

elk笔记13--Queries-compound queries

Criteria Queries

queries配置

queries 报错