time limit per test2 seconds memory limit per test256 megabytes inputstandard input outputstandard output While Mahmoud and Ehab were practicing for IOI, they found a problem which name was Longest common subsequence. They solved it, and then Ehab ch…

A. Mahmoud and Longest Uncommon Subsequence 题目连接: http://codeforces.com/contest/766/problem/A Description While Mahmoud and Ehab were practicing for IOI, they found a problem which name was Longest common subsequence. They solved it, and then Ehab ch…

地址:http://codeforces.com/contest/766/problem/A A题: A. Mahmoud and Longest Uncommon Subsequence time limit per test 2 seconds memory limit per test 256 megabytes input standard input output standard output While Mahmoud and Ehab were practicing for IO…

A. Mahmoud and Longest Uncommon Subsequence time limit per test 2 seconds memory limit per test 256 megabytes input standard input output standard output While Mahmoud and Ehab were practicing for IOI, they found a problem which name was Longest comm…

A. Mahmoud and Longest Uncommon Subsequence time limit per test 2 seconds memory limit per test 256 megabytes input standard input output standard output While Mahmoud and Ehab were practicing for IOI, they found a problem which name was Longest comm…

time limit per test2 seconds memory limit per test256 megabytes inputstandard input outputstandard output Mahmoud wrote a message s of length n. He wants to send it as a birthday present to his friend Moaz who likes strings. He wrote it on a magical…

time limit per test4 seconds memory limit per test256 megabytes inputstandard input outputstandard output Mahmoud wants to write a new dictionary that contains n words and relations between them. There are two types of relations: synonymy (i. e. the…

time limit per test2 seconds memory limit per test256 megabytes inputstandard input outputstandard output Mahmoud has n line segments, the i-th of them has length ai. Ehab challenged him to use exactly 3 line segments to form a non-degenerate triangl…

[题目链接]:http://codeforces.com/contest/766/problem/E [题意] 定义树上任意两点之间的距离为这条简单路径上经过的点; 那些点上的权值的所有异或; 求任意两点之间的距离和; [题解] 权值最大为1e6 所以每个点的权值的二进制形式最多20位左右; 则我们可以对权值的二进制形式的每一位独立考虑; 我们枚举第i位; 并且在计算的时候只考虑这第i位; 可以做树形dp; 算出穿过当前这个节点的路径(并且以其为lca->最高点) 异或和的二进制形式在第i为上权…

[题意概述] 找两个字符串的最长不公共子串. [题目分析] 两个字符串的最长不公共子串就应该是其中一个字符串本身,那么判断两个字符串是否相等,如果相等,那么肯定没有公共子串,输出"-1".否则就是两个字符串中长的最长的长度. [AC] #include<bits/stdc++.h> using namespace std; int main() { ],str2[]; scanf("%s%s",str1,str2); ) printf("-1\…

time limit per test3 seconds memory limit per test256 megabytes inputstandard input outputstandard output A string t is called nice if a string "2017" occurs in t as a subsequence but a string "2016" doesn't occur in t as a subsequence…

521. Longest Uncommon Subsequence I[easy] Given a group of two strings, you need to find the longest uncommon subsequence of this group of two strings. The longest uncommon subsequence is defined as the longest subsequence of one of these strings and…

[LeetCode]522. Longest Uncommon Subsequence II 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.cn/ 题目地址:https://leetcode.com/problems/longest-uncommon-subsequence-ii/description/ 题目描述: Given a list of strings, you…

problem 521. Longest Uncommon Subsequence I 最长非共同子序列之一 题意: 两个字符串的情况很少,如果两个字符串相等,那么一定没有非共同子序列,反之,如果两个字符串不等,那么较长的那个字符串就是最长非共同子序列. solution: class Solution { public: int findLUSlength(string a, string b) { ; return max(a.size(), b.size()); } }; or class…

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/longest-uncommon-subsequence-i/description/ 题目描述 Given a group of two strings, you need to find the longest uncommon subsequence of this g…

[codeforces 415D]Mashmokh and ACM 题意:美丽数列定义:对于数列中的每一个i都满足:arr[i+1]%arr[i]==0 输入n,k(1<=n,k<=2000),问满足[数列长度是k && 数列中每一个元素arr[i]在1~n之间 && 数列中元素可以重复]的数列有多少个?结果对10^9+7取余 解题思路:dp[i][j]表示长度是j,最后一位是i的种数 if(kk%i==0) dp[kk][j+1]+=dp[i][j] #inc…

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/3949 访问. 给定两个字符串,你需要从这两个字符串中找出最长的特殊序列.最长特殊序列定义如下:该序列为某字符串独有的最长子序列(即不能是其他字符串的子序列). 子序列可以通过删去字符串中的某些字符实现,但不能改变剩余字符的相对顺序.空序列为所有字符串的子序列,任何字符串为其自身的子序列. 输入为两个字符串,输出最长特殊序列的长度.如果不存在,则返回 -1. 输入…

Given a group of two strings, you need to find the longest uncommon subsequence of this group of two strings. The longest uncommon subsequence is defined as the longest subsequence of one of these strings and this subsequence should not be any subseq…

Given a list of strings, you need to find the longest uncommon subsequence among them. The longest uncommon subsequence is defined as the longest subsequence of one of these strings and this subsequence should not be any subsequence of the other stri…

Given a group of two strings, you need to find the longest uncommon subsequence of this group of two strings. The longest uncommon subsequence is defined as the longest subsequence of one of these strings and this subsequence should not be any subseq…

Given a group of two strings, you need to find the longest uncommon subsequence of this group of two strings. The longest uncommon subsequence is defined as the longest subsequence of one of these strings and this subsequence should not be any subseq…

Given a list of strings, you need to find the longest uncommon subsequence among them. The longest uncommon subsequence is defined as the longest subsequence of one of these strings and this subsequence should not be any subsequence of the other stri…

题目描述 给定两个字符串,你需要从这两个字符串中找出最长的特殊序列.最长特殊序列定义如下:该序列为某字符串独有的最长子序列(即不能是其他字符串的子序列). 子序列可以通过删去字符串中的某些字符实现,但不能改变剩余字符的相对顺序.空序列为所有字符串的子序列,任何字符串为其自身的子序列. 输入为两个字符串,输出最长特殊序列的长度.如果不存在,则返回 -1. 示例 : 输入: "aba", "cdc" 输出: 3 解析: 最长特殊序列可为 "aba"…

题目要求 Given a group of two strings, you need to find the longest uncommon subsequence of this group of two strings. The longest uncommon subsequence is defined as the longest subsequence of one of these strings and this subsequence should not be anysu…

Given a list of strings, you need to find the longest uncommon subsequence among them. The longest uncommon subsequence is defined as the longest subsequence of one of these strings and this subsequence should not be any subsequence of the other stri…

原题链接在这里:https://leetcode.com/problems/longest-uncommon-subsequence-ii/#/description 题目: Given a list of strings, you need to find the longest uncommon subsequence among them. The longest uncommon subsequence is defined as the longest subsequence of o…

原题链接在这里:https://leetcode.com/problems/longest-uncommon-subsequence-i/#/description 题目: Given a group of two strings, you need to find the longest uncommon subsequence of this group of two strings. The longest uncommon subsequence is defined as the lo…

Given a group of two strings, you need to find the longest uncommon subsequence of this group of two strings. The longest uncommon subsequence is defined as the longest subsequence of one of these strings and this subsequence should not be any subseq…

题目: anysubsequence of the other strings. A subsequence is a sequence that can be derived from one sequence by deleting some characters without changing the order of the remaining elements. Trivially, any string is a subsequence of itself and an empty…

Question 521. Longest Uncommon Subsequence I Solution 题目大意:给两个字符串,找出非共同子串的最大长度 思路:字符串相等就返回-1,不等就返回长度大的那个长度 Java实现: public int findLUSlength(String a, String b) { int aLength = a.length(); int bLength = b.length(); if (aLength != bLength) return Math.…