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LeetCode 128 Longest Consecutive Sequence

Given an unsorted array of integers nums, return the length of the longest consecutive elements sequence. You must write an algorithm that runs in \(O(n)\) time. Solution 既然不能排序，那就用 \(set\) 将元素全部存进去。从所有可能序列中的最小开始遍历，逐次递增，然后

LeetCode 0128 Longest Consecutive Sequence

原题传送门 1. 题目描述 2. Solution 1 1、思路分析使用HashMap来记录连续序列长度，并把结果保存到边界点。如，给定序列{1, 2, 3, 4, 5}, map.get(1) 与 map.get(5)均得到5。当一个新元素n插入到map时，做下面两件事查询n-1 和 n+1是否存在在map中，若存在，则表示序列延伸至n。变量l

1152 Google Recruitment (20 分)（字符串处理）

In July 2004, Google posted on a giant billboard along Highway 101 in Silicon Valley (shown in the picture below) for recruitment. The content is super-simple, a URL consisting of the first 10-digit prime found in consecutive digits of the natural constan

C++解PTA A1096Conse

1096 Consecutive Factors (20 分) Among all the factors of a positive integer N, there may exist several consecutive numbers. For example, 630 can be factored as 3×5×6×7, where 5, 6, and 7 are the three consecutive numbers. Now given any positive N, yo

1446. Consecutive Characters

/** 1446. Consecutive Characters https://leetcode.com/problems/consecutive-characters/ The power of the string is the maximum length of a non-empty substring that contains only one unique character. Given a string s, return the power of s. Example 1: Inp

1096 Consecutive Factors (20 分)

#include<bits/stdc++.h> using namespace std; #define ll long long const int maxn=1e5+100; int main() { ll n; scanf("%lld",&n); ll ansi=0; ll anslen=0; for(ll i=2;i*i<=n;i++) { ll temp=1,j=i;

PAT甲级--Consecutive Factors

文章目录题目题目翻译题目解析代码拆解整合代码得出答案题目 OJ平台题目翻译题目描述原文 Among all the factors of a positive integer N, there may exist several consecutive numbers. For example, 630 can be factored as 3 * 5 * 6 * 7, where 5, 6,

Python 标识连续数组

今天看代码遇到了一个从未见过的语法 list(group) for group in mit.consecutive_groups(seq) 如下：来自：关于python的一些零碎小知识_Peter清风-CSDN博客

0128. Longest Consecutive Sequence (M)

Longest Consecutive Sequence (M) 题目 Given an unsorted array of integers nums, return the length of the longest consecutive elements sequence. You must write an algorithm that runs in O(n) time. Example 1: Input: nums = [100,4,200,1,3,2] Output: 4 Explanat

【leetcode】1578. Minimum Deletion Cost to Avoid Repeating Letters

题目如下： Given a string s and an array of integers cost where cost[i] is the cost of deleting the ith character in s. Return the minimum cost of deletions such that there are no two identical letters next to each other. Notice that you will delete

[LeetCode] 1004. Max Consecutive Ones III 最大连续1的个数之三

Given an array A of 0s and 1s, we may change up to K values from 0 to 1. Return the length of the longest (contiguous) subarray that contains only 1s. Example 1: Input: A = [1,1,1,0,0,0,1,1,1,1,0], K = 2 Output: 6 Explanation: [1,1,1,0,0,1,1,1,1,1,1] Bol

[LeetCode] 1004. Max Consecutive Ones III

1446. Consecutive Characters (E)

Consecutive Characters (E) 题目 Given a string s, the power of the string is the maximum length of a non-empty substring that contains only one unique character. Return the power of the string. Example 1: Input: s = "leetcode" Output: 2 Explanatio

LeetCode #485. Max Consecutive Ones

题目 485. Max Consecutive Ones 解题方法遍历数组，如果是1，更新连1的个数，如果是0，更新最大连1个数并把连1个数置0。遍历结束再更新一次最大连1个数即可。代码 class Solution: def findMaxConsecutiveOnes(self, nums: List[int]) -> int: maxones = 0 coun

[LeetCode 829] Consecutive Numbers Sum

Given a positive integer N, how many ways can we write it as a sum of consecutive positive integers? Example 1: Input: 5 Output: 2 Explanation: 5 = 5 = 2 + 3 Example 2: Input: 9 Output: 3 Explanation: 9 = 9 = 4 + 5 = 2 + 3 + 4 Example 3: Input: 15 Output:

1096 Consecutive Factors

#include <bits/stdc++.h> # define LL long long using namespace std; int main(){ int N; cin>>N; int mx=0; int idx=0; for(int i=2;i<=sqrt(N)+1;i++){ int tmp=1; int j; for(j=i;j<=sqrt(N)+1;j

刷题128. Longest Consecutive Sequence

一、题目说明题目128. Longest Consecutive Sequence，给定一列无序的整数，计算最大连续的整数的个数。复杂度要求是O(n)，难度是Hard！二、我的解答这个题目解答方法包括，brute force、sort、hash。但brute force和sort的复杂度不符合要求，此处用hash。我总共写了2个版本，第1个版本 Tim

算法竞赛入门经典习题3-1

UVa01585 Score #include <iostream> #include <string> using namespace std; int main() { int n = 0; cin >> n; string strAns; for (int i = 0; i < n; i++) { cin >> strAns; int consecutive = 0, score = 0; for (auto c : s

leetcode 829. Consecutive Numbers Sum

PAT_A1096#Consecutive Factors

Source: PAT A1096 Consecutive Factors (20 分) Description: Among all the factors of a positive integer N, there may exist several consecutive numbers. For example, 630 can be factored as 3×5×6×7, where 5, 6, and 7 are the three consecutive numbers. No

[LeetCode#180]Consecutive Numbers

Write a SQL query to find all numbers that appear at least three times consecutively.+----+-----+| Id | Num |+----+-----+| 1 | 1 || 2 | 1 || 3 | 1 || 4 | 2 || 5 | 1 || 6 | 2 || 7 | 2 |+----+-----+For example, given the above Logs tabl

longest-consecutive-sequence(数组中最长的连续序列)

题目描述 Given an unsorted array of integers, find the length of the longest consecutive elements sequence. For example, Given[100, 4, 200, 1, 3, 2], The longest consecutive elements sequence is[1, 2, 3, 4]. Return its length:4. Your algorithm should run

[LeetCode] Binary Gap 二进制间隙

Given a positive integer N, find and return the longest distance between two consecutive 1's in the binary representation of N. If there aren't two consecutive 1's, return 0. Example 1: Input: 22 Output: 2 Explanation: 22 in binary is 0b101

[Swift]LeetCode829. 连续整数求和 | Consecutive Numbers Sum

Given a positive integer N, how many ways can we write it as a sum of consecutive positive integers? Example 1: Input: 5Output: 2Explanation: 5 = 5 = 2 + 3 Example 2: Input: 9Output: 3Explanation: 9 = 9 = 4 + 5 = 2 + 3 + 4 Example 3: Input: 15Output: 4Exp

[Swift]LeetCode485. 最大连续1的个数 | Max Consecutive Ones

Given a binary array, find the maximum number of consecutive 1s in this array. Example 1: Input: [1,1,0,1,1,1]Output: 3Explanation: The first two digits or the last three digits are consecutive 1s. The maximum number of consecutive 1s is 3. Note: The