Homework Answers

Write a Python program that asks the user to enter a series of 20 numbers. The program should store the numbers in a list. It should have the following functions:

• find_lowest(list): finds and returns the lowest number in the list. Do not use any built-in function.
• find_highest(list): finds and returns the highest number in the list. Do not use any built-in function.
• calculate_total(list): calculates and returns the total of the numbers in the list. Do not use any built-in function.

The program should call the functions mentioned above and display the lowest, highest and total values in the list. It should also calculate and display the average of the numbers in the list

6.9.(Write a program using string functions)

Write a program that takes nouns and forms their plurals on the basis of these rules:

a. If a noun ends in “y”, remove the”y” and add “ies”

b. If a noun ends in "s”, “ch” or “sh”, add "es”

c. In all other cases, just add “s”

6.8.

Write a program that will accept the currency value and the name of the country and will

display the equivalent in U.S. dollar, based on the given list:

COUNTRY CURRENCY U.S EQUIVALENT

British Pound 0.6 U.S. dollar

Canadian Dollar 1.3 U.S. dollar

Japanese Yen 140 U.S. dollar

German Mark 1.7 U.S. dollar

Philippines Peso 53 U.S. dollar

Write a program to overload operators in the same program by writing suitable operator member

functions for following expression:

O7= ((O1 % O2)>(O3 || O4) - (O5>O6)) [Here O1,O2,O3,O4,O5,O6 and O7 are objects of a class

“overloading”, and this class is having one integer data member]

6.6.

Write a program using string functions that will accept the name of the country as input value and will display the corresponding capital. Here is the list of the countries and their

capitals.

COUNTRY CAPITAL

Canada Ottawa

United States Washington D.C.

U.S.S.R. Moscow

Italy Rome

Philippines Manila

Write a program to take input for n number of doctor records and write records of all cardiologists in

a file named: “record1”. Also write records of all those doctors in another file named: “record2” who are

taking salary more than INR 80,000. After writing records in both files, merge their contents in another

file: “finalrecord” and read all records of “finalrecord” file and display on screen. [Attributes of doctor:

doc_id, doc_name, doc_specialization, doc_salary]

6.5.

Write a simple decryption program using string functions which will apply the Substitution Method. Here is the given Substitution Table.

Substitution Table:

* A

$ E

/ I

+ O

-­‐ U

Encrypted message: m$$t m$ *t 9:00 *.m. /n th$ p*rk

Decrypted message: meet me at 9:00 a.m. in the park

6.4.

Write a simple encryption program using string functions which apply the substitution method. Here is the given Substitution Table.

Substitution Table: A *

E $

I /

O +

U -­‐

Sample input/output dialogue:

Enter message: meet me at 9:00 a.m. in the park

Encrypted message: m$$t m$ *t 9:00 *.m. /n th$ p*rk

6.3.

Write a program using string function that determines if the input word is a palindrome.

A palindrome is a word that produces the same word when it is reversed.

Sample input/output dialogue:

Enter a word: AMA

Reversed: AMA “It is a palindrome”

Enter a word: STI

Reversed: ITS “It is not a palindrome