Quick Loop Problems:

Counting Loops

1) Write a program to keep asking for a number 10 times. After the 10 times, print the sum of all 10 numbers.

2) Write a program to ask for a name 3 times. Print the name each time. When you are done, print "I am done."

3)Interest Program (on Powerpoint for counting loops)

• Write a program that calculates the interest that the Canarsie Indians would have accumulated if they had put the $24 that they had received for Manhattan Island in the bank at 5% interest.
• Input - none; all the values are fixed
• Output - Year and Principle
• Other Information -
  • Principle is initially 24
  • Interest = Interest Rate * Principle
  • New Principle = Old Principle + Interest

4) A program to calculate Grade Point Average (on Powerpoint for counting loops)

• Example – Professor Smith gives n tests during the term and uses a grading system, where each test is 1/n of the course grade. Assuming that that the average of the test grades translate into a letter grade as follows:
  • Test Average Letter Grade
  • 90.0+ A
  • 80-89.9 B
  • 70-79.9 C
  • 60-69.9 D
  • below 60.0 F
• write a program that will calculate a student's grade.

  Input - Number of tests and the student's test grades
  Output – Test average and course grade
  Other information
  A 90+ average is an “A”.
  A 80-90 average is a “B”.
  A 70-80 average is a “C”.
  A 60-70 average is a “D”
  An average below 60 is an “F”.
  Test average = Sum of the test grade/ Number of tests
    Our first step is to write out our initial algorithm:
  1. Find the number of tests
  2. Find the average of n tests
  3. Find the corresponding letter grade and print it out.