Tag: Tabulation

Maximum Length Snake Sequence

Given a square matrix, print maximum length snake sequence in it. A Snake sequence is defined as a sequence of numbers where each new number, which can only be located to the right or down of the current number, is either plus or minus one.

Longest Decreasing Subsequence Problem

The longest decreasing subsequence problem is to find a subsequence of a given sequence in which the subsequence’s elements are in sorted order, highest to lowest, and in which the subsequence is as long as possible.

Longest Common Subsequence of K-sequences

The longest common subsequence (LCS) problem is the problem of finding the longest subsequence that is present in given two sequences in the same order. i.e. find a longest sequence which can be obtained from the first original sequence by deleting some items, and from the second original sequence by deleting other items.

Longest Increasing Subsequence using LCS

The longest increasing subsequence problem is to find a subsequence of a given sequence in which the subsequence’s elements are in sorted order, lowest to highest, and in which the subsequence is as long as possible. This subsequence is not necessarily contiguous, or unique.  

Find Longest Bitonic Subarray in an array

The longest bitonic subarray problem is to find a subarray of a given sequence in which the subarray’s elements are first sorted in in increasing order, then in decreasing order, and the subarray is as long as possible. Strictly ascending or descending subarrays are also accepted.