Find all words that follow the same order of characters as given pattern
Given a list of words and a pattern, find all words in the list that follows the same order of characters as that of the pattern.
Category: String
Find all possible combinations by replacing given digits with characters of the corresponding list
Given n lists of characters and a number whose digits lie between 1 and n, print all possible combinations by replacing its digits with the characters of the corresponding list.
Find all possible combinations of words formed from the mobile keypad
Given a sequence of numbers between 2 and 9, print all possible combinations of words formed from the mobile keypad with some digits associated with each key.
Find all possible palindromic substrings of a string
Given a string, find all possible palindromic substrings in it. The problem differs from the problem of finding the possible palindromic subsequence. Unlike subsequences, substrings are required to occupy consecutive positions within the original string.
Isomorphic Strings
Given two strings, determine whether they are isomorphic. Two strings, X and Y, are called isomorphic if all occurrences of each character in X can be replaced with another character to get Y and vice-versa.
Find all interleaving of given strings
Find all interleavings of given strings that can be formed from all the characters of the first and second string where the order of characters is preserved.
Find all binary strings that can be formed from a wildcard pattern
Given a binary pattern containing ? wildcard character at a few positions, find all possible combinations of binary strings that can be formed by replacing the wildcard character by either 0 or 1.
Determine whether two strings are anagram or not
Given two strings, determine if they are anagrams or not. Two strings X and Y are anagrams if by rearranging the letters of X, we can get Y using all the original letters of X exactly once.
Convert a number into a corresponding excel column name
Given a positive number, convert the number to the corresponding Excel column name.
Check if strings can be derived from each other by circularly rotating them
Check if a given string can be derived from another string by circularly rotating it. The rotation can be in a clockwise or anti-clockwise rotation.
Check if a repeated subsequence is present in a string or not
Given a string, check if a repeated subsequence is present in it or not. The repeated subsequence should have a length of 2 or more.
Longest Palindromic Substring Problem
Given a string, find the maximum length contiguous substring of it that is also a palindrome.