The first line of input contains an integer T, denoting the number of test cases. close, link Problem Description. Letter Combinations of a Phone Number. By zxi on December 29, 2017. Experience. Title: Letter Combinations of a Phone Number Source: leetcode.com Given a digit string, return all possible letter combinations that the number could represent. Platform to practice programming problems. Given 23. ………………. We place every possible character for current digit and recur for remaining digits. Print all strings of maximum length from an array of strings, Append digits to the end of dupicate strings to make all strings in an array unique, All possible strings of any length that can be formed from a given string, Print all possible strings that can be made by placing spaces, Check if all strings of an array can be made same by interchanging characters, Count all possible strings that can be generated by placing spaces, Print all strings from given array that can be typed using keys from a single row of a QWERTY keyboard, Number of common base strings for two strings, Check whether an array of strings can correspond to a particular number X, Maximum number of strings that can be formed with given zeros and ones, Check if a string can be split into two strings with same number of K-frequent characters, Data Structures and Algorithms – Self Paced Course, Ad-Free Experience – GeeksforGeeks Premium, We use cookies to ensure you have the best browsing experience on our website. LintCode & LeetCode. New. Output: For each test case, print all permutations of a given string S with single space and all permutations should be in lexicographically increasing order. close, link A mapping of digit to letters (just like on the telephone buttons) is given below. Let’s say a queue. 5359 491 Add to List Share. The letters assigned to “2” are “ABC” and to “3” are “DEF” therefore the combination of letters will be “ad”, “ae”, “af”, “bd”, “be”, “bf”, “cd”, “ce” and “cf” 0. Get hold of all the important DSA concepts with the DSA Self Paced Course at a student-friendly price and become industry ready. Input:Digit string "23" Letter Combinations of a Phone Number LeetCode coding solution. A mapping of digit to letters (just like on the telephone buttons) is being followed. ; A mapping of digit to letters (just like on the telephone buttons) is given below. A mapping of digit to letters (just like on the telephone buttons) is given below. Iterative Letter Combinations of a Phone Number, Python program to check if a string has at least one letter and one number, Python | Find longest consecutive letter and digit substring, Python regex to find sequences of one upper case letter followed by lower case letters, Python | Find the list elements starting with specific letter, Python | Ways to check if given string contains only letter, Python - Words with Particular Rear letter, Python - Eliminate Capital Letter Starting words from String, Python - Count of Words with specific letter, Python Program to Removes Every Element From A String List Except For a Specified letter, Python program to capitalize the first letter of every word in the file, Move all occurence of letter 'x' from the string s to the end using Recursion, Python | Combinations of elements till size N in list, Print all the combinations of a string in lexicographical order, Python | Find Mixed Combinations of string and list, Python - Combinations of sum with tuples in tuple list, Print all possible combinations of the string by replacing '$' with any other digit from the string, Count possible combinations of pairs with adjacent elements from first N numbers, Python - Odd or Even elements combinations Summations in Matrix, Python - All Possible unique K size combinations till N, Python - All pair combinations of 2 tuples, Data Structures and Algorithms – Self Paced Course, Ad-Free Experience – GeeksforGeeks Premium, We use cookies to ensure you have the best browsing experience on our website.