Zipped in Python | HackerRank Programming Solutions | HackerRank Python Solutions

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Introduction To Python

Python is a widely-used, interpreted, object-oriented, and high-level programming language with dynamic semantics, used for general-purpose programming. It was created by Guido van Rossum, and first released on February 20, 1991.

Python is a computer programming language often used to build websites and software, automate tasks, and conduct data analysis. It is also used to create various machine learning algorithm, and helps in Artificial Intelligence. Python is a general purpose language, meaning it can be used to create a variety of different programs and isn’t specialized for any specific problems. This versatility, along with its beginner-friendliness, has made it one of the most-used programming languages today. A survey conducted by industry analyst firm RedMonk found that it was the most popular programming language among developers in 2020.

Link for the Problem – Zipped in python – HackerRank Solution

Zipped in python – HackerRank Solution

Problem:

zip([iterable, …])
This function returns a list of tuples. The i th tuple contains the i th element from each of the argument sequences or iterables.
If the argument sequences are of unequal lengths, then the returned list is truncated to the length of the shortest argument sequence.
Sample Code :

>>> print zip([1,2,3,4,5,6],'Hacker')
[(1, 'H'), (2, 'a'), (3, 'c'), (4, 'k'), (5, 'e'), (6, 'r')]
>>> 
>>> print zip([1,2,3,4,5,6],[0,9,8,7,6,5,4,3,2,1])
[(1, 0), (2, 9), (3, 8), (4, 7), (5, 6), (6, 5)]
>>> 
>>> A = [1,2,3]
>>> B = [6,5,4]
>>> C = [7,8,9]
>>> X = [A] + [B] + [C]
>>> 
>>> print zip(*X)
[(1, 6, 7), (2, 5, 8), (3, 4, 9)]

Task :

The National University conducts an examination of  N students in X subjects.
Your task is to compute the average scores of each student.

The format for the general mark sheet is:

Student ID → ___1_____2_____3_____4_____5__               
Subject 1   |  89    90    78    93    80
Subject 2   |  90    91    85    88    86  
Subject 3   |  91    92    83    89    90.5
            |______________________________
Average        90    91    82    90    85.5 

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Input Format :

The first line contains N and X separated by a space.
The next X lines contains the space separated marks obtained by students in a particular subject.

Constraints :

• 0 < N <= 100
• 0 < X <= 100

Output Format :

Print the averages of all students on separate lines.
The averages must be correct up to 1 decimal place.

---

Sample Input :

5 3
89 90 78 93 80
90 91 85 88 86  
91 92 83 89 90.5

Sample Output :

90.0 
91.0 
82.0 
90.0 
85.5  

Explanation :

Marks obtained by student 1: 89 90 91
Average marks of student 1:
270 / 3 = 90.0
Marks obtained by student 2: 90 91 92
Average marks of student 2:
273 / 3 = 91.0
Marks obtained by student 3: 78 85 83
Average marks of student 3:
246 / 3 = 82.0
Marks obtained by student 4: 93 88 89
Average marks of student 4:
270 / 3 = 90.0
Marks obtained by student 5: 80 86 90.5
Average marks of student 5:256.5 / 3 = 85.5

Zipped in python – HackerRank Solution

N, X = input().split()

io = list()

for _ in range(int(X)):
    ip = map(float, input().split())
    io.append(ip)

for i in zip(*io): 
    print( sum(i)/len(i) )