Lab 2: Data Types & Arithmetic
Today’s lab has us playing with data types.
Problem 0:
Which of the following are valid variable names? Feel free to
compile and check for errors.
int 4variable;
int intVariable;
int variable;
int variable 1;
int variable ;
int i 4;
Problem 1:
double a = 1.0e2;
double b = .01;
printf(”a in scienfitic %e\n”,a);
printf(”b in scienfitic %e\n”,b);
printf(”a in standard %f\n”,a);
printf(”b in standard %e\n”,b);
Record the output from the above code:
Problem 2:
Given:
int a = 1;
int b = 2;
int c = 3;
int result;
For each expression write down what you expect to get as the
solution. Then code the expression and write down what out-
put of the program is using:
printf(”Output %d\n”, result );
(1) result =a−5∗b/c + 1
Expected:
Executed:
(2) result =a−5∗b/(c+ 1)
Expected:
Executed:
(3) result =a−5∗(b/c)+1
Expected:
Executed:
(4) result = (a−5) ∗b/c + 1
Expected:
CPS 196: Introduction to C (Summer 2009) Page 1
