CO211: Modern Programming I

Suggested Answers to Homework Problems

All the answers represent one of many potential correct methods for solving the problems assigned in class. Just because your program doesn’t look like these programs does not mean that the program is incorrect or invalid.

Book Exercises

• Exercise 2.21 Convert celsius to fahrenheit
• Exercise 2.33 Calculate the interest on a credit card payment
• Exercise 2.34 Age-based ideal heartrate for aerobic training
• Exercise 3.22 Blue & Red Checkerboard
• Exercise 3.23 Blue block tower
• Exercise 3.25 Reformatting a phone number from ddd-ddd-dddd to (ddd) ddd-dddd
• Exercise 3.27 Combined water and sewer bill
• Exercise 3.29 Treasury bill Interest calculator
• Exercise 4.27 Determine if an integer is negative, positive or zero
• Exercise 4.28 Determine if a pair of integers are both positive, negative, or one each positive and negative
• Exercise 4.48 Fix the broken code to count the inputs larger than the first
• Exercise 4.50 Display rectangles to user specification
• Exercise 4.57 Count the number of negative, positive and zero inputs
• Exercise 4.58 Find the largest and smallest value in a set of values
• Exercise 5.43 Accumulate interest on a deposit
• Exercise 6.29 Coin-change functions
• Exercise 6.30 MakeChange function & program
• Exercise 6.44 Sum of integers between two integers
• Exercise 6.52 Pig Latin translating function
• Exercise 7.14 Verify access codes
• Exercise 7.25 Convert time as hh:mm:ss to seconds
• Exercise 7.26 Using 7.25, calculate the elapsed time (in seconds) of two times formatted as hh:mm:ss
• Exercise 8.14 Display spatial relationships

Non-book Exercises

• Name & Email program
• Big-letter Initials program
• Block-border and text
• Leap-year determination
• Triangle 1: Inverted, left-justified right triangles to user spec.
• Triangle 2: Inverted, right-justified right triangles to user spec.
• High/Low/Average of numbers from an input file
• Integer-count Histogram
• Program with functions to prompt & get input and to compare three arguments to determine the largest
• Write and test an implementation of the date class
• Print the smallest and largest values in an array
• Find the length of a “c-style” string
• Search for a matching element in an array