Java’s String class encapsulates an array of bytes. A byte can be converted to a char, in which case, String becomes an array of characters used to compose words, sentences, or any other data you want ...

Given a string S and a string T, find the minimum window in S which will contain all the characters in T in complexity O(n). If there is no such window in S that covers all characters in T, return the ...

We construct a matrix to keep track of maximal length suffix of all substrings. We can find the maximal value from this matrix and traverse from that cell diognally upwards till the cell value becomes ...