转载自:https://www.cnblogs.com/huashanqingzhu/p/7423745.html 题目链接:http://poj.org/problem?id=1458 题目大意:给出两个字符串,求出这样的一个最长的公共子序列的长度:子序列中的每个字符都能在两个原串中找到,而且每个字符的先后顺序和原串中的先后顺序一致. 输入有若干行,每行是两个字符串.对每一行输入的两个字符串,输出最长公共子串的长度. Sample Inputabcfbc abfcabprogramming c…

题目链接:http://poj.org/problem?id=1458 题目大意:给出两个字符串,求出这样的一个最长的公共子序列的长度:子序列中的每个字符都能在两个原串中找到,而且每个字符的先后顺序和原串中的先后顺序一致. 输入有若干行,每行是两个字符串.对每一行输入的两个字符串,输出最长公共子串的长度. Sample Inputabcfbc abfcabprogramming contest abcd mnp Sample Output420 算法分析 参考1:北大郭炜老师mooc课程参考2:…

POJ1159,动态规划经典题目,很适合初学者入门练手. 求:为了使字符串左右对称,应该插入的最小字符数目. 设字符串为S1 S2 S3 - Sn. 这个字符串有n个字符,根据DP的基本思路,减少问题规模.如果S1和Sn匹配,则只关心S2 S3 -Sn-1,就这样问题规模减少了.如果S1和Sn不匹配,那就有两种办法. 方法1:加入S1',字符串成S1S2 S3 - Sn S1',则问题转化为S2 S3 - Sn. 方法2:加入Sn',字符串成Sn'S1S2 S3 - Sn,则问题转化为S1 S3…

Common Subsequence POJ-1458 //最长公共子序列问题 #include<iostream> #include<algorithm> #include<cstdio> #include<cstring> #include<string> using namespace std; string a,b; int dp[1003][1003]; int main(){ while(cin>>a>>b){…

link:http://poj.org/problem?id=1458 最基础的那种 #include <iostream> #include <cstdio> #include <cstdlib> #include <cstring> #include <cmath> #include <cctype> #include <algorithm> #include <queue> #include <de…

//Accepted 4112 KB 16 ms //最长公共子串 #include <cstdio> #include <cstring> #include <iostream> using namespace std; ; int dp[imax_n][imax_n]; char s1[imax_n]; char s2[imax_n]; int len1,len2; int max(int a,int b) { return a>b?a:b; } void D…

Problem Description A subsequence of a given sequence is the given sequence with some elements (possible none) left out. Given a sequence X = <x1, x2, ..., xm> another sequence Z = <z1, z2, ..., zk> is a subsequence of X if there exists a stri…

Common Subsequence Time Limit: 1000MS   Memory Limit: 10000K Total Submissions: 45763   Accepted: 18737 Description A subsequence of a given sequence is the given sequence with some elements (possible none) left out. Given a sequence X = < x1, x2, ..…

Common Subsequence Time Limit: 1000MS   Memory Limit: 10000K Total Submissions: 37551   Accepted: 15023 Description A subsequence of a given sequence is the given sequence with some elements (possible none) left out. Given a sequence X = < x1, x2, ..…

Common Subsequence Time Limit: 1000MS   Memory Limit: 10000K Total Submissions: 37614   Accepted: 15058 Description A subsequence of a given sequence is the given sequence with some elements (possible none) left out. Given a sequence X = < x1, x2, ..…