where are the errors the pseudocode debugging exercise
// This application reads student typing test data
// including number of errors on the test, and the number
// of words typed per minute. Grades are assigned based
// on the following table:
// Errors
// Speed 0 1 2 or more
// 0–30 C D F
// 31–50 C C F
// 51–80 B C D
// 81–100 A B C
// 101 and up A A B
start
Declarations
num MAX_ERRORS = 2
num errors
num wordsPerMinute
num grades[5][3] = {"C", "D", "F"},
{"C", "C", "F"},
{"B", "C", "D"},
{"A", "B", "C"},
{"A", "A", "B"}
num LIMITS = 5
num speedLimits[LIMITS] = 0, 31, 51, 81, 101
num row
output "Enter number of errors on the test "
input errors
if errors = MAX_ERRORS then
errors > MAX_ERRORS
endif
output "Enter the speed in words per minute "
input wordsPerMinute
while row < LIMITS AND wordsPerMinute >= speedLimits[row]
row = row + 1
endwhile
row = row - 1
output "Your grade is ", grades[errors][row]
stop
// This application reads student typing test data
// including number of errors on the test, and the number
// of words typed per minute. Grades are assigned based
// on the following table:
// Errors
// Speed 0 1 2 or more
// 0–30 C D F
// 31–50 C C F
// 51–80 B C D
// 81–100 A B C
// 101 and up A A B
start
Declarations
num MAX_ERRORS = 2
num errors
num wordsPerMinute
num grades[5][3] = {{"C", "D", "F"},
{"C", "C", "F"},
{"B", "C", "D"},
{"A", "B", "C"},
{"A", "A", "B"}}
num LIMITS = 5
num speedLimits[LIMITS] = {0, 31, 51, 81, 101}
num row = 0
output "Enter number of errors on the test "
input errors
if errors > MAX_ERRORS then
output "Too many errors!"
endif
output "Enter the speed in words per minute "
input wordsPerMinute
while row < LIMITS AND wordsPerMinute >= speedLimits[row]
row = row + 1
endwhile
row = row - 1
output "Your grade is ", grades[errors][row]
stop
There are a few errors in the pseudocode.
1. Line 15: The condition in the if statement is incorrect. It should be `errors > MAX_ERRORS` instead of `errors = MAX_ERRORS` to check if the number of errors is greater than the maximum allowed errors.
2. Line 22: The initialization of the `speedLimits` array is incorrect. It should be `num speedLimits[LIMITS] = {0, 31, 51, 81, 101}` instead of separate values separated by commas.
3. Line 26: The loop condition should check if `row` is less than or equal to `LIMITS` instead of just less than `LIMITS`. The corrected condition is `while row < LIMITS AND wordsPerMinute >= speedLimits[row]`.
Other than these errors, the pseudocode looks correct.
To identify the errors in the pseudocode, let's go through each section step by step:
1. Declarations:
- The declaration of `num MAX_ERRORS = 2` is correct.
- The declaration of `num errors` is correct.
- The declaration of `num wordsPerMinute` is correct.
- The declaration of the 2-dimensional array `num grades[5][3]` is incorrect. It should be defined with square brackets, not curly brackets.
Corrected line: `num grades[5][3] = {{"C", "D", "F"}, {"C", "C", "F"}, {"B", "C", "D"}, {"A", "B", "C"}, {"A", "A", "B"}}`
- The declaration of `num LIMITS = 5` is correct.
- The declaration of `num speedLimits[LIMITS]` is incorrect. It should be initialized with curly brackets to represent an array.
Corrected line: `num speedLimits[LIMITS] = {0, 31, 51, 81, 101}`
- The declaration of `num row` is correct.
2. Input and Output:
- The output statement `"Enter number of errors on the test "` is correct.
- The input statement `input errors` is correct.
- The `if` statement `if errors = MAX_ERRORS then errors > MAX_ERRORS endif` is incorrect and unnecessary. It can be removed.
Corrected line: `if errors > MAX_ERRORS then `
- The output statement `"Enter the speed in words per minute "` is correct.
- The input statement `input wordsPerMinute` is correct.
3. Loop and Variable Manipulation:
- The while loop `while row < LIMITS AND wordsPerMinute >= speedLimits[row]` is correct.
- The line `row = row - 1` is correct.
4. Final Output:
- The output statement `"Your grade is ", grades[errors][row]` is correct.
Overall, the errors in the pseudocode are:
- Incorrect declaration of the `grades` array.
- Incorrect initialization of the `speedLimits` array.
- Incorrect `if` statement for checking errors against `MAX_ERRORS`.
The corrected pseudocode is:
```
start
Declarations
num MAX_ERRORS = 2
num errors
num wordsPerMinute
num grades[5][3] = {{"C", "D", "F"}, {"C", "C", "F"}, {"B", "C", "D"}, {"A", "B", "C"}, {"A", "A", "B"}}
num LIMITS = 5
num speedLimits[LIMITS] = {0, 31, 51, 81, 101}
num row
output "Enter number of errors on the test "
input errors
if errors > MAX_ERRORS then
output "Error: Number of errors exceeds the maximum allowed."
endif
output "Enter the speed in words per minute "
input wordsPerMinute
while row < LIMITS AND wordsPerMinute >= speedLimits[row]
row = row + 1
endwhile
row = row - 1
output "Your grade is ", grades[errors][row]
stop
```