HackerRank Collections.namedtuple() solution in python

In this Collections.namedtuple() problem we need to develop a python program that can use the namedtuple module from python and print them on the output screen.

Problem solution in Python 2 programming.

# Enter your code here. Read input from STDIN. Print output to STDOUT
from collections import namedtuple
N = int(raw_input())
headers = raw_input()
student = namedtuple('Student',headers)
students = []
for i in range(N):
    students.append(student(*raw_input().split()))
print sum(list(map(lambda x: float(x.MARKS),students)))/len(students)

Problem solution in Python 3 programming.

N, headers, total = int(input()), list(input().split()), 0
for _ in range(N):
    total += int(list(input().split())[headers.index('MARKS')])
print(total/N)

Problem solution in pypy programming.

# Enter your code here. Read input from STDIN. Print output to STDOUT
from collections import namedtuple
n, Student = input(), namedtuple('Student', raw_input())
print "%.2f" %( sum([float(stud.MARKS) for stud in [Student(*raw_input().split()) for _ in xrange(n)]]) / n )

Problem solution in pypy3 programming.

num_students = int(input())
relevant_pos = None
total = 0
for num in range(num_students + 1):
    if num == 0:
        titles = list(filter(lambda el: el != '', input().split(' ')))
        relevant_pos = titles.index('MARKS')
        continue
    total += int(list(filter(lambda el: el != '', input().split(' ')))[relevant_pos])

print(round(float(total) / num_students, 2))