# Tag Archives: LCS

## Longest Repeated SubsequenceOctober 10, 2017

iven a string, print the longest repeating subseequence such that the two subsequence don’t have same string character at same position, i.e., any i’th character… Read More »

## Longest Common Subsequence with at most k changes allowedOctober 5, 2017

Given two sequence P and Q of numbers. The task is to find Longest Common Subsequence of two sequence if we are allowed to change… Read More »

## Shortest possible combination of two stringsAugust 24, 2017

Compute the shortest string for a combination of two given strings such that the new string consist of both the strings as its subsequences. Examples… Read More »

## Shortest Uncommon SubsequenceMay 26, 2017

Given two strings S and T, find length of the shortest subsequence in S which is not a subsequence in T. If no such subsequence… Read More »

## Minimum number of deletions and insertions to transform one string into anotherMay 21, 2017

Given two strings ‘str1’ and ‘str2’ of size m and n respectively. The task is to remove/delete and insert minimum number of characters from/in str1… Read More »

## Count ways to increase LCS length of two strings by oneApril 3, 2017

Given two strings of lower alphabet characters, we need to find the number of ways to insert a character in the first string such that… Read More »

## LCS (Longest Common Subsequence) of three stringsJanuary 20, 2017

Given 3 strings of all having length < 100,the task is to find the longest common sub-sequence in all three given sequences. Examples: Input :… Read More »

## Print all longest common sub-sequences in lexicographical orderNovember 13, 2016

You are given two strings.Now you have to print all longest common sub-sequences in lexicographical order? Examples: Input : str1 = “abcabcaa”, str2 = “acbacba”… Read More »

## Longest common subsequence with permutations allowedOctober 23, 2016

Given two strings in lowercase, find the longest string whose permutations are subsequences of given two strings. The output longest string must be sorted. Examples:… Read More »

## Minimum Cost To Make Two Strings IdenticalAugust 26, 2016

Given two strings X and Y, and two values costX and costY. We need to find minimum cost required to make the given two strings… Read More »

## Find if string is K-Palindrome or not | Set 2July 18, 2016

Given a string, find out if the string is K-Palindrome or not. A K-palindrome string transforms into a palindrome on removing at most k characters… Read More »

## Printing Shortest Common SupersequenceJuly 7, 2016

Given two strings X and Y, print the shortest string that has both X and Y as subsequences. If multiple shortest supersequence exists, print any… Read More »

## Longest Common Increasing Subsequence (LCS + LIS)June 18, 2016

Prerequisites : LCS, LIS Given two arrays, find length of the longest common increasing subsequence [LCIS] and print one of such sequences (multiple sequences may… Read More »

## A Space Optimized Solution of LCSApril 16, 2016

Given two strings, find the length of longest subsequence present in both of them. Examples: LCS for input Sequences “ABCDGH” and “AEDFHR” is “ADH” of… Read More »

## Shortest Common SupersequenceJuly 4, 2015

Given two strings str1 and str2, find the shortest string that has both str1 and str2 as subsequences.