HackerRank Zipped! problem solution in python

HackerRank Zipped! problem solution in python – In this Zipped! Problem in Python programming. The National University conducts an examination of N students in X subjects. Your task is to compute the average scores of each student.

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.

HackerRank Zipped! problem solution in Python 2.

N,X = map(int,raw_input().split())
marks = []

for i in xrange(X):
    marks.append(map(float,raw_input().split()))
    
for studentScores in zip(*marks):
    print sum(studentScores)/len(studentScores)

Zipped! solution in Python 3.

# Enter your code here. Read input from STDIN. Print output to STDOUT
n, x = map(int, input().split()) 

sheet = []
for _ in range(x):
    sheet.append( map(float, input().split()) ) 

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

Problem solution in pypy programming.

# Enter your code here. Read input from STDIN. Print output to STDOUT
n, x = map(int, raw_input().split())
all_scores = [map(float, raw_input().split()) for _ in xrange(x)]

for student, score in zip(range(1, n+1), zip(*all_scores)):
    print sum(score)/x

Problem solution in pypy3 programming.

# Enter your code here. Read input from STDIN. Print output to STDOUT
# Enter your code here. Read input from STDIN. Print output to STDOUT
num_of_std,num_of_sbj=map(int,input().split())

all_scores=[]
for _ in range(num_of_sbj):
    all_scores.append(map(float,input().split()))
    
scores_by_std=zip(*all_scores)
avg_scores_by_std=[sum(scores)/num_of_sbj for scores in scores_by_std]
for avg_score in avg_scores_by_std:
    print(avg_score)