- 8 (p. 94) The following if statement is unnecessarily complicated. Simplify it as much as possible.
(Hint: The entire statement can be replaced by a single assignment.) if (age >=13)
if (age <=19)
teenage = true
else
teenage = false
else if (age < 13)
teenage = false
- 11 (p. 97) Write a program that asks the user for a two-digit number, and then prints the English word for the number:
Enter a two-digit number: 45 you entered the number forty-five.
Hint: Break the number into two digits. Use one switch statement to print the word for the first digit (“twenty”, “thirty”, and so forth). Use a second switch statement to print the word for the second digit. Don’t forget that the numbers between 11 and 19 require special treatment.
- 1-3 (p. 121) What output does each of the following program fragment produce?
(a) i = 1; (b) i = 9384; (c) i = 5; while (i <= 128) { do { j = i – 1;
printf(“%d “, i); printf(“%d “, i); for (; i > 0, j > 0; –i, j = i-1) i *= 2; i /= 10; printf(“%d “, i);
} } while (i > 0);
- What output does each of the following flowcharts produce? Write a program fragment in C for each
of the flowcharts, and submit the codes online. of the flowcharts, and submit the codes online.
- 11 (p. 124) The value of the mathematical constant can be expressed as an infinite series:
Write a program that approximate by computing the value of
where n is an integer entered by the user. Save and submit the program as a3 epsilon0.c.
- 12∗ (p. 124) The attached flowchart a3 epsilon.rap provides a modified solution to Q3.5. It allows for continuous addition of terms until the current term becomes less than a small (floating-point) number ε entered by the user. Write an equivalent program in C, and save and submit the program as a3 epsilon1.c.
(Hint: In implementation, be careful with different types between the two sides of an assignment statement.)
