Given a string containing digits from 2-9 inclusive, return all possible letter combinations that the number could represent. Return the answer in any order.A mapping of digits to letters (just like on the telephone buttons) is given below. Note that 1 does not map to any letters. Example 1:Input: digits = "23"Output: ["ad","ae","af","bd","be","bf","cd","ce","cf"]Example 2:Input: digits = ""Output: []Example 3:Input: digits = "2"Output: ["a","b","c"] Constraints:0 <= digits.length <= 4digits[i] is a digit in the range ['2', '9']

Given an n-digit number(all digits are unique), write a working  code to generate permutations of all numbers possible using one or more digits from the input number.Eg: Input: 123Output:123121321233132123132213231312321

Digits in the number given in front of the following questions are to be coded based on the digit and the conditions given below:Digit 2 9 4 6 3 8 1 7 5 0Code P M R K T V B W F DConditions:(1) If both the first and the last digits of a number are odd numbers, they should be coded as 'Z'.(2) If both the first and the last digits of a number are even numbers, they should be coded as 'A'.Now based on the above information find out which of the combinations is the coded form of the given number in each question.372528:ZWPFVZZWPFVBTWPFVZAWPFVA

A message containing letters from A-Z can be encoded into numbers using the following mapping:'A' -> "1"'B' -> "2"...'Z' -> "26"To decode an encoded message, all the digits must be grouped then mapped back into letters using the reverse of the mapping above (there may be multiple ways). For example, "11106" can be mapped into:"AAJF" with the grouping (1 1 10 6)"KJF" with the grouping (11 10 6)Note that the grouping (1 11 06) is invalid because "06" cannot be mapped into 'F' since "6" is different from "06".Given a string s containing only digits, return the number of ways to decode it.The test cases are generated so that the answer fits in a 32-bit integer. Example 1:Input: s = "12"Output: 2Explanation: "12" could be decoded as "AB" (1 2) or "L" (12).Example 2:Input: s = "226"Output: 3Explanation: "226" could be decoded as "BZ" (2 26), "VF" (22 6), or "BBF" (2 2 6).Example 3:Input: s = "06"Output: 0Explanation: "06" cannot be mapped to "F" because of the leading zero ("6" is different from "06"). Constraints:1 <= s.length <= 100s contains only digits and may contain leading zero(s).

Suppose we want to choose 5 letters, without replacement, from 9 distinct letters. If the order of the choices is relevant, how many ways can this be done?2 points

Write a python program to accept three distinct digits and print all possible combinations from the digits, using arbitrary arguments in a function.