CSM217: C for Computer Scientists

Lecture 1: Exercises

Exercise 1 
main() {
  printf("Hello, world\n");
}
The program above prints "Hello, world" (without the quotation marks) and a new line when you run it. Copy the program into a file, and run it. Experiment with leaving out parts of the program to see what error messages you get.

You can visit the Common C Compiler Errors page to see what error messages you'd get if you are compiling the program using gcc running on Solaris. The error messages you actually get may be different if you compile the program using a different compiler.

Exercise 2

Experiment to find out what happens when printf's argument string contains \c, where c is some character not listed in Lecture 1.

Typical Errors

Exercise 3

Use the formula C = (5/9)(F-32) to convert Fahrenheit temperatures (F) to Celsius (C). Use values of F in the range 0 <= F >= 300, in steps of 20. Your output should look like:

0   -17
20  -6
40  4
60  15
80  26
100 37
120 48
140 60
160 71
180 82
200 93
220 104
240 115
260 126
280 137
300 148
The solution is here, or else you can mail me.

Exercise 4

Modify the temperature conversion program to print a heading about the table. The solution is here, or else you can mail me.