write a program that prompts the user to input three numbers. The program should then output the numbers in nondescending order.
Week 4: Iteration and Repetition - Exercises Help
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1. (TCO 5) The following is what type of loop?
Declare Integer n = 1
Declare Integer s = 0
Declare Integer number
Declare String keepGoing = "y"
While keepGoing == "y"
Display "Enter an integer."
Input number
Set s = s + number
Set n = n + 1
Display "Keep going? (Enter y or yes or n for no.)"
Input keepGoing
End While
(Points: 1)
count controlled pre-test
count controlled post-test
condition controlled pre-test
condition controlled post-test
2. (TCO 5) Which variable is the accumulator for the following loop?
Declare Integer n = 1
Declare Integer s = 0
Declare Integer number
Declare String keepGoing = "y"
While keepGoing == "y"
Display "Enter an integer."
Input number
Set s = s + number
Set n = n + 1
Display "Keep going? (Enter y or yes or n for no.)"
Input keepGoing
End While
(Points: 1)
n
s
number
keepGoing
3. (TCO 5) Which variable is the counter for the following loop?
Declare Integer n = 1
Declare Integer s = 0
Declare Integer number
Declare String keepGoing = "y"
While keepGoing == "y"
Display "Enter an integer."
Input number
Set s = s + number
Set n = n + 1
Display "Keep going? (Enter y for yes or n for no.)"
Input keepGoing
End While
(Points: 1)
n
s
number
keepGoing
4. (TCO 5) To which variable is the sentinel value assigned in the following loop?
Declare Integer n = 1
Declare Integer s = 0
Declare Integer number
Declare String keepGoing = "y"
While keepGoing == "y"
Display "Enter an integer."
Input number
Set s = s + number
Set n = n + 1
Display "Keep going? (Enter y for yes or n for no.)"
Input keepGoing
End While
(Points: 1)
n
s
number
keepGoing
5. (TCO 5) If the user enters 3, y, 6, y, 7 and n when prompted, what will be displayed by the pseudocode program?
Declare Integer n = 0
Declare Integer s = 0
Declare Integer number
Declare String keepGoing = "y"
While keepGoing == "y"
Display "Enter an integer."
Input number
Set s = s + number
Set n = n + 1
Display "Keep going? (Enter y for yes or n for no.)"
Input keepGoing
End While
Display n, " ", s
(Points: 1)
7 7
3 16
4 16
7 16
6. (TCO 5) Assume the user enters 3 when prompted to enter the number of values. What value will be displayed by the pseudocode program?
Declare Integer counter = 1
Declare Integer maxValue
Declare Integer s = 0
Display "Enter the number of values"
input maxValue
While counter <= maxValue
Set s = s + 2
End While
Display s
(Points: 1)
2
6
8
No value will be displayed, it is an infinite loop
7. (TCO 5) What value will be displayed by the following pseudocode program?
Declare Integer counter
Declare Integer accumulator = 0
For counter = 1 to 3
Set accumulator = accumulator + counter
End For
Display accumulator
(Points: 1)
9
6
3
0
8. (TCO 5) Which type of loop will always execute at least once? (Points: 1)
While
For
Do-While
Any pretest loop
9. (TCO 5) Which of the following is not found in a For loop? (Points: 1)
sentinel
counter
accumulator
loop body
10. (TCO 5) One of the following four types of loops can be used for any repetition structure needed in a program. (Points: 1)
For loop
While loop
Do-While loop
Do-Until loop
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To write a program that prompts the user to input three numbers and outputs them in nondescending (ascending) order, you can use the following steps:
1. Prompt the user to input three numbers.
2. Read the input from the user and store them in separate variables.
3. Compare the three variables and determine their order.
4. Print the variables in nondescending (ascending) order.
Here's an example program in Python:
```python
# Step 1: Prompt the user to input three numbers
num1 = int(input("Enter the first number: "))
num2 = int(input("Enter the second number: "))
num3 = int(input("Enter the third number: "))
# Step 2: Read the input and store them in separate variables
# Step 3: Determine the order of the numbers
if num1 <= num2 and num1 <= num3:
smallest = num1
if num2 <= num3:
middle = num2
largest = num3
else:
middle = num3
largest = num2
elif num2 <= num1 and num2 <= num3:
smallest = num2
if num1 <= num3:
middle = num1
largest = num3
else:
middle = num3
largest = num1
else:
smallest = num3
if num1 <= num2:
middle = num1
largest = num2
else:
middle = num2
largest = num1
# Step 4: Print the numbers in ascending order
print("Numbers in nondescending order:", smallest, middle, largest)
```
This program prompts the user to enter three numbers, then it compares and arranges them in ascending order using if-else conditions. Finally, it prints the numbers in nondescending (ascending) order.
You can run this program and test it by inputting different sets of three numbers.