CSC111 Homework 4 2015b

--D. Thiebaut (talk) 20:48, 27 September 2015 (EDT)

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Once again, you have to work in programming pair mode for this assignment. This assignment is due on Thursday 10/8/15, at 11:55 p.m.

Make sure you use a main() function in all your programs!

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Problem #1

Write a program named hw4_1.py that prompts the user for her first and last name, and outputs a computer account made of the first initial of her first name, plus her last name, all in lowercase, plus a number equal to the number of characters in the string just created. Make sure there's a blank line before the output of the account name. This line will be used by the grading program to spot your output.

Example 1

    First name? Allie
    Last name? BABA

    Your computer account name is: ababa5 

Example 2

    First name? kathleen 
    Last name? MCCARTNEY

    Your computer account name is: kmccartney10 

• Submit your program to HW 4 PB 1 on Moodle.

Problem #2

Write a program called hw4_2.py that prompts the user for her first and last name, and outputs a computer account made of the first initial of her first name, plus her last name, all in lowercase. But now we want the computer account to be exactly 8 characters long. If the user names are too short, your program will pad it with the character '#'.

Example

    First name? Allie 
    Last name? BABA
 
    Your computer account name is: ababa### 

    First name? Al 
    Last name? Gus 

    Your computer account name is:agus#### 

    First name? Alma 
    Last name? Verylongname 

    Your computer account name is: averylon 

• Submit your program to HW 4 PB 2 on Moodle.

Problem #3

Write a program called hw4_3.py that prompts the user for her first and last name, and outputs a computer account made of the first initial of her first name, plus her last name, all in lowercase. We want the computer account to be exactly 8 characters long, but this time it is padded with the current year (2015 for us). We assume the user name will always have at least 3 characters.

Example

    First name? Allie 
    Last name? BABA 

    Your computer account name is: ababa201 

    First name? Al 
    Last name? Gus 

    Your computer account name is: agus2015 

    First name? Alma 
    Last name? Verylongname 

    Your computer account name is: averylon 

• Submit your program to HW 4 PB 3 on Moodle.

Problem #4

Write a program called hw4_4.py that prompts the user for her first and last name, and outputs a triangle made with her name, padded with dots in front of it, as illustrated below. There is no limit on the length of the first and last names. Notice that there is a blank line between the input section and the output section.

Example

First name? Maria
Last name? LUCE
 
........M
.......Ma
......Mar
.....Mari
....Maria
...MariaL
..MariaLU
.MariaLUC
MariaLUCE

• Submit your program to HW 4 PB 4 on Moodle.

A Reminder on the Output Generated by Moodle

When Moodle compares the output of your program to the output of the solution program, it uses a special code for displaying the result. Here is an example of a submitted program that doesn't quite work correctly:

- ..............
.............R
............RO
...........ROM
..........ROME
.........ROMEO
........ROMEOV
.......ROMEOVA
......ROMEOVAL
.....ROMEOVALE
....ROMEOVALEN
...ROMEOVALENT
..ROMEOVALENTI
.ROMEOVALENTIN
+ ROMEOVALENTINO

• The lines that start with a minus sign are the lines output by your program, that are not present in the solution output. These lines are extra lines that your program should not generate.
• The lines that start with a plus sign are the lines output by the solution program, that should be present in your output, but aren't.
• The lines that do not start with a plus or a minus are lines that are correctly output by your program.
• The lines above indicate that the submitted program is generating an extra line at the beginning of the output, and missing a line at the end.

Problem #5

Write a program called hw4_5.py that prompts the user to enter a date representing the beginning and end of a semester, in the form mmdd-mmddyyyy, and displays it back as dd month yyyy to dd month yyyy, where month is the first 3 letters of the name of the month, in English.

Example

Enter date of semester: 0129-05012015

29 Jan to 1 May 2015

Note that the day for May is 1, and not 01.

• Submit your program to HW 4 PB 5 on Moodle.

Problem #6

Write a program called hw4_6.py that asks the user for several pieces of information about some famous person, and outputs the information as illustrated below.

Example

Please enter first name: Sophia
Please enter last name:  SMITH
Please enter date of birth (yyyymmdd): 17960827
Please enter date of death( yyyymmdd): 18700602
Please enter accomplishment: Funded Smith College, the largest member of the seven sisters.

Sophia Smith (August 27, 1796 -- June 2, 1870)
Funded smith college, the largest member of the seven sisters.

• Note that the name is formatted correctly, even if the user enters all uppercase or lowercase letters for the name.
• Submit your program to HW 4 PB 6 on Moodle.

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Solution Programs

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# hw4sol.py
# D. Thiebaut
# Solution program(s) for Homework 4, 2015
# The solution organizes the individual solutions
# into functions, but you didn't have to do that for
# solving the problems.
# Just comment out the appropriate line in the the main()
# function to energize the solution for a give problem..

# solution for Problem 1
def problem1():
    fName = input( "Your first name? " )
    lName = input( "Your last name? " )
    print( )
    full  = fName[0] + lName
    full = full.lower()
    print( "Your computer account: {0:1}{1:1}".format( full, len(full) ) )

# solution for Problem 2
def problem2():
    fName = input( "Your first name? " )
    lName = input( "Your last name? " )
    full  = fName[0] + lName + "zzzzzzzz"
    full = full[0:8].lower()
    print( full)

# solution for Problem 3
def problem3():
    fName = input( "Your first name? " )
    lName = input( "Your last name? " )
    full  = fName[0] + lName + "20152015"
    full = full[0:8].lower()
    print( full)

# solution for Problem 4
def problem4():
    fName = input( "Your first name? " )
    lName = input( "Your last name? " )
    name = fName + lName
    noChars = len( name )
    for i in range( 1, noChars+1 ):
        noSpaces = noChars - i
        spaces = '.' * noSpaces
        print( spaces + name[0:i] )

# solution for Problem 5
def problem5():
    # define the list of months as a list of strings
    monthNames = ["January", "February", "March", "April", 
                  "May", "June", "July", "August",
                  "September", "October", "November", "December"]
    
    # get the date from the user
    date = input( "Enter date: " )

    # extract the different variables from the date
    month = date[0:2]
    day   = date[2:4]
    year  = date[4: ]
    dayInt = int( day )
    monthIndex = int( month ) - 1
    monthStr   = monthNames[ monthIndex ][0:3]

    # display result
    print( dayInt, monthStr, year )


# solution for Problem 6
def problem6():
    # define the list of months as a string of 3-char names
    monthNames = "JanFebMarAprMayJunJulAugSepOctNovDec"

    # get the date from the user
    date = input( "Enter date: " )

    # extract the different variables from the date
    month = date[0:2]
    day   = date[2:4]
    year  = date[4: ]
    dayInt = int( day )
    monthIndex = int( month ) - 1
    monthStr   = monthNames[ monthIndex*3 : monthIndex*3+3]

    # display result
    print( dayInt, monthStr, year )


 
# main program.
# Calls all the functions that solve the different problems.
# Comment out the lines you want to actually activate the
# function you are interested in.

def main():
    problem1()
    #problem2()
    #problem3()
    #problem4()
    #problem5()
    #problem6()

main()

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