- The problem can be solved using dynamic programming. - Let dp[i][j] represent the number of distinct subsequences of the first i characters of string s that match the first j characters of string t.

Given two strings s and t, return the number of distinct subsequences of s which equals t. The test cases are generated so that the answer fits on a 32-bit signed integer.

We independently review everything we recommend. When you buy through our links, we may earn a commission. Learn more› By Doug Mahoney Doug Mahoney is a writer covering home-improvement topics, ...

Have you ever heard of FINDSTR and Select-String? Select-String is a cmdlet that is used to search text & the patterns in input strings & files. It is similar to grep on Linux & FINDSTR on Windows. In ...

For many, it was its use in the film Platoon. For others, it was William Orbit’s Pieces in a Modern Style project. But very few of us can claim to have first experienced Barber’s Adagio for Strings in ...