/*
 * Chapter4
 * Assingment
 * John Stile
 */
1. What is printed as the value of x in the following program?

#include <stdio.h>
int main(void)
{
  int xx,yy;
  yy=2;
  xx=5;
  yy=yy*yy; // 2*2=4.  assign 4 to yy
  xx=(yy+4)*(xx-2); // add 4+4=8.  5-2=3, multipy 8*3=24
  printf("The value of xx is %d\n", xx);
  return 0;
}

Answer:
 24 

2. What is the output from the following code fragment?
  int xx,yy;
  xx=10;
  yy=3;
  printf("value of xx is %d\n", xx=3);
  if(xx==yy)
    printf("xx is equal to yy.\n");
  else
    printf("xx is not equal to yy.\n");

Answer:
 Print "value of xx is 3" and carrage return
 Print "is not equal to yy"  

3. Fix the following code fragment:
  int aa,bb;
  float xx,yy;
  aa=27;
  bb=13;
  xx=(float)aa/(bb-4);
  printf("xx is now %f \n", xx);

4. Write a short program that asks the user for an integer then asks for a second integer.
   The program then determins the relationship of the two provided integers, 
   reporting that integer ?? is (larger, smaller, same as) integer??

#include <stdio.h>
int main(void)
{
 int aa, bb; // declare 2 int variables

 printf("Enter an integer\n");
 scanf("%d", &aa);
 printf("Enter another integer\n");
 scanf("%d", &bb);

 if ( aa == bb )
 {
   printf ("The integers are the same. %d==%d\n", aa,bb);
 }
 if ( aa < bb)
 {
    printf ("The integer %d is less than %d\n", aa, bb);
 }
 if ( aa > bb)
 {
    printf ("The integer %d is less than %d\n", bb, aa);
 }

 return 0;
}

5. What is the output by each of the following printf statements?  Explain.
     int A=12;
  a) printf("%d \n", 'A'+A );  // ascii value of A (65), is added to the value stored in variable A (12), and the result is printed as a number (77).
  b) printf("%c\n", 'A' + A);  // ascii value of A (65), is added to the value stored in variable A (12), and the result is printed as a character (M). 
  c) printf("%d \n", 'Z' - A); // ascii value of Z (90), is subtracted from the value stored in variable A (12), and the result is printed as a number (78). 
  d) printf("%c \n", 'Z' - A); //  ascii value of Z (90), is subtracted from the value stored in variable A (12), and the result is printed as a character (W).