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Module Print Activity has five consecutive If statements and a total of eight comparisons. The algorithm performs all five If statements, even if the first condition happens to be satisfied. It would make more sense to code this module as a set of nested If-Then-Elses. With If-Then-Else, we stop testing as soon as a condition is satisfied. The middle Ifs seem to require compound logical conditions with two parts. However, the If-Then-Else structure makes the two-part conditions unnecessary; we don't execute the elsebranch unless one of the parts is already satisfied. Here's the rewritten module: |
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Print Activity (a better version) |
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Print The recommended activity is
IF temperature > 85
Print swimming.
ELSE IF temperature > 70
Print tennis.
ELSE IF temperature > 32
Print golf.
ELSE IF temperature > 0
Print skiing.
ELSE
Print dancing. |
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Because this algorithm has just one variable, temperature, we won't bother with the list of variables. |
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//******************************************************************
// Activity program
// This program outputs an appropriate activity
// for a given temperature
//******************************************************************
#include <iostream.h>
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