C Primer Plus®, Third Edition

Chapter 7

1. True: b.

2. 1. number >= 1 && number < 9

   2. ch != 'q' && ch != 'k'

   3. (number >= 1 && number <= 9) && number != 5

   4. (number >= 1 && number <= 9) or else number < 1 || number > 9

3. Line 5: Should be scanf("%d %d", &weight, &height);. Don't forget those &s for scanf(). Also, this line should be preceded by a line prompting input.

   Line 9: What is meant is (height < 72 && height > 64). However, the first part of the expression is unnecessary because height must be less than 72 for the else if to be reached in the first place. Therefore, a simple (height > 64) will serve.

   Line 11: The condition is redundant; the second subexpression (weight not less than or equal to 300) means the same as the first. A simple (weight > 300) is all that is needed. But there is ...