There is a brick wall in front of you. The wall is rectangular and has several rows of bricks. The bricks have the same height but different width. You want to draw a vertical line from the top to the bottom and cross the leastbricks. The brick wall…

[LeetCode]554. Brick Wall 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/brick-wall/description/ 题目描述: There is a brick wall in front of you. The wall is rectangular and has…

［抄题］: There is a brick wall in front of you. The wall is rectangular and has several rows of bricks. The bricks have the same height but different width. You want to draw a vertical line from the top to the bottom and cross the least bricks. The bric…

class Solution { public: int leastBricks(vector<vector<int>>& wall) { unordered_map<int,int> m; ; i < wall.size(); i++) , t = ; j < wall[i].size() - ; j++) { t += wall[i][j]; m[t]++; } ; for (auto & p : m) { _max = max(_max…

There is a brick wall in front of you. The wall is rectangular and has several rows of bricks. The bricks have the same height but different width. You want to draw a vertical line from the top to the bottom and cross the leastbricks. The brick wall…

There is a brick wall in front of you. The wall is rectangular and has several rows of bricks. The bricks have the same height but different width. You want to draw a vertical line from the top to the bottom and cross the leastbricks. The brick wall…

554. 砖墙 你的面前有一堵方形的.由多行砖块组成的砖墙. 这些砖块高度相同但是宽度不同.你现在要画一条自顶向下的.穿过最少砖块的垂线. 砖墙由行的列表表示. 每一行都是一个代表从左至右每块砖的宽度的整数列表. 如果你画的线只是从砖块的边缘经过,就不算穿过这块砖.你需要找出怎样画才能使这条线穿过的砖块数量最少,并且返回穿过的砖块数量. 你不能沿着墙的两个垂直边缘之一画线,这样显然是没有穿过一块砖的. 示例: 输入: [[1,2,2,1], [3,1,2], [1,3,2], [2,4], [3…

砖墙 你的面前有一堵方形的.由多行砖块组成的砖墙. 这些砖块高度相同但是宽度不同.你现在要画一条自顶向下的.穿过最少砖块的垂线. 砖墙由行的列表表示. 每一行都是一个代表从左至右每块砖的宽度的整数列表. 如果你画的线只是从砖块的边缘经过,就不算穿过这块砖.你需要找出怎样画才能使这条线穿过的砖块数量最少,并且返回穿过的砖块数量. 你不能沿着墙的两个垂直边缘之一画线,这样显然是没有穿过一块砖的. 示例: 输入: [[1,2,2,1], [3,1,2], [1,3,2], [2,4], [3,1,2]…

题目大意:用1*2的砖头建n*2的墙,问有多少种不同的砖头排列方式?与斐波那契序列相似. #include <cstdio> #define MAXN 60 #define N 50 unsigned int F[MAXN]; int main() { #ifdef LOCAL freopen("in", "r", stdin); #endif F[] = ; F[] = ; ; i <= N; i++) F[i] = F[i-] + F[i-];…

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…

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++ 517. Super Washing Machines You have n super washing machines on a line. Initially, each washing machine has some dresses or is empty. For each move, you could choose any m (1 ≤ m ≤ n) washing machines,…

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~ 如果各位看官们,大神们发现了任何错误,或是代码无法通过OJ,或是有更好的解法,或是有任何疑问,意见和建议的话,请一定要在对应的帖子下面评论区留言告知博主啊(如果不方便注册博客园的话,可以下载下文提到的APP,在Feedback中给博主发邮件交流哈),同时也请大家踊跃地,大量地,盲目地提供各个题目的follow up一起讨论哈,多谢多谢,祝大家刷得愉快…

1. 557. Reverse Words in a String III 分割字符串,翻转. class Solution { public: string reverseWords(string s) { int n = s.size(); ) return s; string res; ; n += ; s += " "; ; while(i < n) { last = i; while(i < n && s[i] != ' ') i++; strin…

Hash Table基础 哈希表(Hash Table)是常用的数据结构,其运用哈希函数(hash function)实现映射,内部使用开放定址.拉链法等方式解决哈希冲突,使得读写时间复杂度平均为O(1). HashMap(std::unordered_map).HashSet(std::unordered_set)的原理与Hash Table一样,它们的用途广泛.用法灵活,接下来侧重于介绍它们的应用. 相关LeetCode题: 706. Design HashMap  题解  705. Des…

请点击页面左上角 -> Fork me on Github 或直接访问本项目Github地址:LeetCode Solution by Swift    说明:题目中含有$符号则为付费题目. 如:[Swift]LeetCode156.二叉树的上下颠倒 $ Binary Tree Upside Down 请下拉滚动条查看最新 Weekly Contest!!! Swift LeetCode 目录 | Catalog 序        号 题名Title 难度     Difficulty  两数之…

[1]Two Sum (2018年11月9日,k-sum专题,算法群衍生题) 给了一个数组 nums, 和一个 target 数字,要求返回一个下标的 pair, 使得这两个元素相加等于 target . 题解:我这次最大范围的优化代码, hash-table + one pass,时间复杂度 O(N),空间复杂度 O(N).重点在于动态找,一边生成hash-table的同时去找答案,不是先生成hash-table再开始找答案. //这种类似 hash 的能用 unordered_map 就不要…

Description Once upon a time there was a greedy King who ordered his chief Architect to build a wall around the King's castle. The King was so greedy, that he would not listen to his Architect's proposals to build a beautiful brick wall with a perfec…

原文链接:https://www.dreamwings.cn/poj1113/2832.html Wall Time Limit: 1000MS   Memory Limit: 10000K Total Submissions: 34026   Accepted: 11591 Description Once upon a time there was a greedy King who ordered his chief Architect to build a wall around the…

Wall Time Limit: 2000/1000 MS (Java/Others)    Memory Limit: 65536/32768 K (Java/Others)Total Submission(s): 3139    Accepted Submission(s): 888 Problem Description Once upon a time there was a greedy King who ordered his chief Architect to build a w…

Wall Time Limit: 1000MS   Memory Limit: 10000K Total Submissions: 28462   Accepted: 9498 Description Once upon a time there was a greedy King who ordered his chief Architect to build a wall around the King's castle. The King was so greedy, that he wo…

http://poj.org/problem?id=1113 答案是凸包周长+半径为l的圆的周长... 证明?这是个坑.. #include <cstdio> #include <cstring> #include <cmath> #include <string> #include <iostream> #include <algorithm> #include <queue> #include <set>…

Wall Time Limit: 1000MS Memory Limit: 10000K Total Submissions: 32360 Accepted: 10969 Description Once upon a time there was a greedy King who ordered his chief Architect to build a wall around the King's castle. The King was so greedy, that he would…

题目链接:http://acm.hdu.edu.cn/showproblem.php?pid=1348 Wall Time Limit: 2000/1000 MS (Java/Others)    Memory Limit: 65536/32768 K (Java/Others) Total Submission(s): 3386    Accepted Submission(s): 968 Problem Description Once upon a time there was a gre…

Wall Time Limit: 1000MS   Memory Limit: 10000K Total Submissions: 26286   Accepted: 8760 Description Once upon a time there was a greedy King who ordered his chief Architect to build a wall around the King's castle. The King was so greedy, that he wo…

[题目] Description Once upon a time there was a greedy King who ordered his chief Architect to build a wall around the King's castle. The King was so greedy, that he would not listen to his Architect's proposals to build a beautiful brick wall with a p…

Time Limit: 1000MS   Memory Limit: 10000K Total Submissions: 27110   Accepted: 9045 Description Once upon a time there was a greedy King who ordered his chief Architect to build a wall around the King's castle. The King was so greedy, that he would n…

Wall Time Limit: 1000MS   Memory Limit: 10000K Total Submissions: 31199   Accepted: 10521 Description Once upon a time there was a greedy King who ordered his chief Architect to build a wall around the King's castle. The King was so greedy, that he w…

Wall Time Limit: 2000/1000 MS (Java/Others)    Memory Limit: 65536/32768 K (Java/Others) Total Submission(s): 3779    Accepted Submission(s): 1066 Problem Description Once upon a time there was a greedy King who ordered his chief Architect to build a…