problem 830. Positions of Large Groups solution1: class Solution { public: vector<vector<int>> largeGroupPositions(string S) { vector<vector<int>> res; , end = ; ; i<S.size(); ++i) { ]) end = i; ]) { ) res.push_back({start, end}…
作者: 负雪明烛 id: fuxuemingzhu 个人博客: http://fuxuemingzhu.cn/ 目录 题目描述 题目大意 解题方法 日期 题目地址:https://leetcode.com/problems/positions-of-large-groups/description/ 题目描述 In a string S of lowercase letters, these letters form consecutive groups of the same characte…
Question 830. Positions of Large Groups Solution 题目大意: 字符串按连续相同字符分组,超过3个就返回首字符和尾字符 思路 : 举例abcdddeeeeaabbbcd end start end-start a 0 0 b 1 0,1 1-0=1 c 2 1,2 2-1=1 d 3 2,3 3-2=1 d 4 3 d 5 3 e 6 3,6 6-3=3 3,5 e 7 6 e 8 6 e 9 6 a 10 6,10 10-6=4 6,9 a 11…
In a string S of lowercase letters, these letters form consecutive groups of the same character. For example, a string like S = "abbxxxxzyy" has the groups "a", "bb", "xxxx", "z" and "yy". Call a…
In a string S of lowercase letters, these letters form consecutive groups of the same character. For example, a string like S = "abbxxxxzyy" has the groups "a", "bb", "xxxx", "z" and "yy". Call a…
In a string S of lowercase letters, these letters form consecutive groups of the same character. For example, a string like S = "abbxxxxzyy" has the groups "a", "bb", "xxxx", "z" and "yy". Call a…
Positions of Large Groups In a string S of lowercase letters, these letters form consecutive groups of the same character. For example, a string like S = "abbxxxxzyy" has the groups "a", "bb", "xxxx", "z" …
这是悦乐书的第323次更新,第346篇原创 01 看题和准备 今天介绍的是LeetCode算法题中Easy级别的第193题(顺位题号是830).在由小写字母组成的字符串S中,那些相同的连续字符会组成集合.例如,诸如S ="abbxxxxzyy"的字符串具有集合"a","bb","xxxx","z"和"yy". 如果集合有3个或更多字符,称之为大集合,要求找到每个大集合的起点和终点,以数组…
problem 893. Groups of Special-Equivalent Strings 题意: 感觉参考代码也是有点问题的... 参考 1. Leetcode_easy_893. Groups of Special-Equivalent Strings; 2. grandyang; 3. discuss; 完…
问题 该文章的最新版本已迁移至个人博客[比特飞],单击链接 https://www.byteflying.com/archives/3750 访问. 在一个由小写字母构成的字符串 S 中,包含由一些连续的相同字符所构成的分组. 例如,在字符串 S = "abbxxxxzyy" 中,就含有 "a", "bb", "xxxx", "z" 和 "yy" 这样的一些分组. 我们称所有包含大于或等…
In a string S of lowercase letters, these letters form consecutive groups of the same character. For example, a string like S = "abbxxxxzyy" has the groups "a", "bb", "xxxx", "z" and "yy". Call a…
In a string S of lowercase letters, these letters form consecutive groups of the same character. For example, a string like S = "abbxxxxzyy"has the groups "a", "bb", "xxxx", "z"and "yy". Call a g…
In a string S of lowercase letters, these letters form consecutive groups of the same character. For example, a string like S = "abbxxxxzyy" has the groups "a", "bb", "xxxx", "z" and "yy". Call a…
题目如下: 解题思路:这个题目可以进行拆分成几个子问题.第一,求出island的数量,其实就是 200. Number of Islands,这个很简单,DFS或者BFS都能搞定:第二,除了求出island的数量之外,还要求出每个island包括的1的数量,这个也不难,在DFS或者BFS的过程中计数即可:第三,遍历grid中所有的0,判断每个0的上下左右分别连接了几个不同的island,并将连接的所有island的所有1的数量求和,再加上本身的1(0变来的)即是这个0变成1可以得到的large…
二分+二分图多重匹配. /* 1669 */ #include <iostream> #include <string> #include <map> #include <queue> #include <set> #include <stack> #include <vector> #include <deque> #include <algorithm> #include <cstdio&…
https://rtyley.github.io/bfg-repo-cleaner/ an alternative to git-filter-branch The BFG is a simpler, faster alternative to git-filter-branch for cleansing bad data out of your Git repository history: Removing Crazy Big Files Removing Passwords, Crede…
1.题目描述 2.问题分析 从头遍历字符串,使用一个局部迭代器和局部变量记录该字符个数.如果个数>= 3 ,则将此时的迭代器位置和局部迭代器的位置保存到局部vector中.再将这个局部vector 保存到 最终的结果vector中. 3.代码 vector<vector<int>> largeGroupPositions(string S) { vector<vector<int>> r ; string::iterator it = S.begin(…
problem 1021. Remove Outermost Parentheses 参考 1. Leetcode_easy_1021. Remove Outermost Parentheses; 完…
problem 1022. Sum of Root To Leaf Binary Numbers 参考 1. Leetcode_easy_1022. Sum of Root To Leaf Binary Numbers; 完…
problem 1025. Divisor Game 参考 1. Leetcode_easy_1025. Divisor Game; 完…
problem 1029. Two City Scheduling 参考 1. Leetcode_easy_1029. Two City Scheduling; 完…
problem 1030. Matrix Cells in Distance Order 参考 1. Leetcode_easy_1030. Matrix Cells in Distance Order; 完…
problem 1033. Moving Stones Until Consecutive 参考 1. Leetcode_easy_1033. Moving Stones Until Consecutive; 完…
problem 1037. Valid Boomerang 参考 1. Leetcode_easy_1037. Valid Boomerang; 完…
problem 1042. Flower Planting With No Adjacent 参考 1. Leetcode_easy_1042. Flower Planting With No Adjacent; 完…
problem 1046. Last Stone Weight 参考 1. Leetcode_easy_1046. Last Stone Weight; 完…
problem 1047. Remove All Adjacent Duplicates In String 参考 1. Leetcode_easy_1047. Remove All Adjacent Duplicates In String; 完…
problem 1051. Height Checker solution class Solution { public: int heightChecker(vector<int>& heights) { vector<int> orders = heights; sort(orders.begin(), orders.end()); ; ; i<heights.size(); i++) { if(heights[i]!=orders[i]) res++; } r…
problem 1071. Greatest Common Divisor of Strings solution class Solution { public: string gcdOfStrings(string str1, string str2) { return (str1+str2==str2+str1) ? (str1.substr(, gcd(str1.size(), str2.size()))) : ""; } }; 参考 1. Leetcode_easy_1071…
problem 1154. Day of the Year solution class Solution { public: int dayOfYear(string date) { // 平年 闰年 ] = {, , , , , , , , , , , }; , )), m = stoi(date.substr(, )), d = stoi(date.substr()); && y % == && (y % != || y % == )) d++;//leap year…