Practice>Python>Built-Ins>Zipped!

hackerrank.com

Zipped!

Problem link : https://www.hackerrank.com/challenges/zipped/problem

Difficulty : Easy

Tip

• The important thing regarding zip(), is that zip() exchange x dimension and y dimension of matrix like list
• Normally, we place each student in the first column of each row
• However, in the problem description, whole students are placed in the row

Solution

# Enter your code here. Read input from STDIN. Print output to STDOUT N, X = map(int, input().split(' ')) subjects = [] for _ in range(X): subjects.append(map(float, input().split(' '))) students = zip(*subjects) for student in students: m = sum(student) / len(student) print(m)