Answered: Write a python program to store first…

Database System Concepts

7th Edition

ISBN:9780078022159

Author:Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan

Publisher:Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan

Chapter1: Introduction

Section: Chapter Questions

Problem 1PE

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Write a python program to store first year student percentage(in float) in array. Write function for sorting array of floating point numbers in ascending order using quick sort and display top five scores.

import array as arr

# Accept the % marks of the students

def accept_perc():

a = arr.array('f', [])

no_stud = int(input("Enter the number of Students : "))

for i in range(0, no_stud):

a.append(float(input("Enter the First Year % of Student[{0}] : ".format(i))))

return a

# Print the % marks of the Students

def print_perc(a):

for i in range(0, len(a)):

print("\t {0:.2f}".format(a[i]), end=" ")

print()

# Quick Sort Partition function

def partition(a, start, end):

pivot = a[start]

low = start + 1

high = end

while True:

# If the current value we're looking at is larger than the pivot

# it's in the right place (right side of pivot) and we can move left,

# to the next element.

# We also need to make sure we haven't surpassed the low pointer, since that

# indicates we have already moved all the elements to their correct side of the pivot

# Continue from here

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