Problem Desciption: 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 original string by deleting some (can be none) of the characters without disturbing the relative positions of the remaining c...
#include<iostream>#include<cstdio>#include<algorithm>#include<cstring>using namespace std;constint maxn=1000+5;int n,m;int dp[maxn][maxn];char s1[maxn],s2[maxn];intmain(){while(scanf("%s%s",s1,s2)==2){n=strlen(s1);//s1串长度m=strlen(s2);//s2串长度memset(dp,0,sizeof(dp...
A String is a subsequenceof a given String, that is generated by deleting some character of a given string without changing its order. Examples: Input : abc Output : a, b, c, ab, bc, ac, abc Input : aaa Output : a, aa, aaa. Recommended: Please try your approach on {IDE} first...
The longest palindromic subsequence (LPS) problem is the problem of finding the longest subsequence of a string (a subsequence is obtained by deleting some of the characters from a string without reordering the remaining characters) which is also a palindrome. In general, the longest palindromic ...
Given a stringsand a stringt, check ifsis subsequence oft. You may assume that there is only lower case English letters in bothsandt.tis potentially a very long (length ~= 500,000) string, andsis a short string (<=100). A subsequence of a string is a new string which is formed fr...
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 subsequen...B. Longest Palindrome---思维(暴力) Returning back to problem solving, Gildong is now st...
Problem A sequence of N positive integers (10 < N < 100 000), each of them less than or equal 10000, and a positive integer S (S < 100 000 000) are given. Write a program to find the minimal length of the subsequence of consecutive elements of the sequence, the sum of which is...
A subsequence of a string is a new string which is formed from the original string by deleting some (can be none) of the characters without disturbing the relative positions of the remaining characters. (ie, "ace" is a subsequence of "abcde" while "aec" is not). ...
String Merging ProblemsLCS ProblemThe known 2-string LCS problem is generalized to finding a Longest Common Subsequence (LCS) for a set of strings. A new, general approach that systematically enumerates common subsequences is proposed for the solution. Assuming a finite symbol set, it is shown ...
Here, we are going to learn the solution to find number of times a string occurs as a subsequence – which is a popular interview question based on dynamic programming.