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UVA 10069 ---Distinct Subsequences +DP+大数
可以定义dp[i][j]表示第一个串的前i个字符中含有第二个串的前j个字符的总情况数; 则:如dp[i][j]=dp[i-1][j],如果str1[i]==str2[j]则dp[i][j]+=dp[i-1][j-1]; 初始时讲所有的dp[i][0]赋值为1,其他为0。 然后这个题目需要用到大数,可以用C++重载运算符,或者是java的大数类; 我用的是java,第一次用java的大数,感...
分类:其他好文   时间:2015-01-27 16:20:39    阅读次数:161
CSU 1354 Distinct Subsequences 求不相同子序列的和 dp
题目链接:点击打开链接 Description     Give a positive number, count the sum of the distinct subsequence of it, moreover, any subsequence should not contain leading zeroes except it is zero.    ...
分类:其他好文   时间:2015-01-24 20:08:06    阅读次数:240
Distinct Subsequences -- from Leetcode
Problem:Given a stringSand a stringT, count the number of distinct subsequences ofTinS.A subsequence of a string is a new string which is formed from ...
分类:其他好文   时间:2015-01-24 15:44:24    阅读次数:179
CSU 1354 Distinct Subsequences 求不同子序列和 dp
题目链接:点击打开链接 题意: 给定一个长整数 求所有不同的子序列和。 思路: dp[i]表示以i数字为结尾的序列的和 num[i]表示以i数字为结尾的序列个数 import java.io.PrintWriter; import java.util.ArrayList; import java.util.Arrays; import java.util.Collections; i...
分类:其他好文   时间:2015-01-23 20:10:12    阅读次数:164
Distinct Subsequences (dp)
Given a stringSand a stringT, count the number of distinct subsequences ofTinS.A subsequence of a string is a new string which is formed from the orig...
分类:其他好文   时间:2015-01-22 19:53:56    阅读次数:168
[leetcode] Distinct Subsequences
Distinct SubsequencesGiven a stringSand a stringT, count the number of distinct subsequences ofTinS.A subsequence of a string is a new string which is...
分类:其他好文   时间:2015-01-20 15:07:57    阅读次数:164
[Leetcode][JAVA] Distinct Subsequences
Given a stringSand a stringT, count the number of distinct subsequences ofTinS.A subsequence of a string is a new string which is formed from the orig...
分类:编程语言   时间:2015-01-09 06:56:19    阅读次数:239
[leetcode]Distinct Subsequences
问题描述: Given a string S and a string T, count the number of distinct subsequences of T in S. A subsequence of a string is a new string which is formed from the original string by deleting some...
分类:其他好文   时间:2015-01-05 21:58:33    阅读次数:185
【目录】Leetcode
不知不觉居然已经写了200多篇随笔了,现在查找的时候经常要翻好久,很不方便。故给自己做个目录~Leetcode1、动态规划Palindrome Partitioning II(hard) ☆Distinct Subsequences(hard)Edit Distance (hard)Interlea...
分类:其他好文   时间:2015-01-02 14:32:34    阅读次数:183
[leetcode] Distinct Subsequences
题目:(DP)Given a stringSand a stringT, count the number of distinct subsequences ofTinS.A subsequence of a string is a new string which is formed from t...
分类:其他好文   时间:2015-01-02 10:55:22    阅读次数:120
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