Problem Name: Python - Decorators 2 - Name Directory

Problem Link:  

In this HackerRank Functions in PYTHON problem solution,

Let's use decorators to build a name directory! You are given some information about N people. Each person has a first name, last name, age and sex. Print their names in a specific format sorted by their age in ascending order i.e. the youngest person's name should be printed first. For two people of the same age, print them in the order of their input.

For Henry Davids, the output should be:

Mr. Henry Davids


For Mary George, the output should be:


Ms. Mary George


Input Format

The first line contains the integer N, the number of people.

N lines follow each containing the space separated values of the first name, last name, age and sex, respectively.


0 <= N <=  10

Output Format

Output N names on separate lines in the format described above in ascending order of age.

Sample Input


Mike Thomson 20 M
Robert Bustle 32 M
Andria Bustle 30 F


Sample Output


Mr. Mike Thomson
Ms. Andria Bustle
Mr. Robert Bustle



For sorting a nested list based on some parameter, you can use the itemgetter library. You can read more about it here.





Code Examples

#1 Code Example with Python Programming

Code - Python Programming

def person_lister(f):
    def inner(people):
        return [*map(f, list(sorted(people, key=lambda p: int(p[2]))))]
    return inner
Copy The Code & Try With Live Editor


[Solved] Standardize Mobile Number Using Decorators in PYTHON solution in Hackerrank
[Solved] Arrays in PYTHON solution in Hackerrank