Show the output of the following programs as printed out by the computer. 1) #in

Question

Show the output of the following programs as printed out by the computer.

1) #include

int main (void)

{

int *x,*y,*z, i;

int a[10]={9,8,7,3,4,5,6,7,8,9};

x= y = z =a;

for (i=0;i<8; i +=2)

            printf("The value of a = %d ", a[i]);

   printf(" case 1, X: %d , X: %d Y: %d Z: %d ", *x+3, *(x+3), *y , *z );

   printf(" case 3, value is: %d ", *x+5 );

return 0;

}

#include

#include

int main ( )

{

char s1[20 ]="Have a ";

char s2 [   ] = "Nice day";

char s3 [40] = " ";

printf("s1= %s s2= %s ", s1, s2);

printf( " strcat ( s1, s2) = %s", strcat (s1, s2));

printf(" strncat (s3, s1, 6) = %s", strncat (s3, s1, 6) );

return 0;

}

Complete the following program as specified. This will be an example of pointer arithmetic. For e.g

#include

int main (void)

{

            /* Local Definitions */

            char *pDays[7];

            char **pLast;

            char **pWalker;

            /* Statements */

            pDays[0] = "Sunday";

            pDays[1] = "Monday";

            …

            pDays[6] = "Saturday";

            /* Print the elements of above array so that your output would be */

            /*

            The days of the week

            Sunday

            Monday

            Tuesday

            Wednesday

            Thursday

            Friday

            Saturday */

            return 0;

}

Given the code fragments, complete the program as directed in the comments. For e.g.

#include

      typedef struct

         {

         int numerator;

          int denominator;

         } FRACTION;

int main (void)

{

/*Step 1. Create 3 objects of given structure( Suppose Fr1, Fr2, and Fr3*/

/*Step 2. Write the statement to scan the values from the keyboard for fields of the first two objects- Fr1, and Fr2, */

/*Step 3. Multiply the numerator fields of Fr1 and Fr2 . And store the result in the numerator field of Fr3*/

return 0;

}

Explanation / Answer

1. The output of the first part is:

The value of a = 9

The value of a = 7

The value of a = 4

The value of a = 6

case 1, X: 12 , X: 3 Y: 9 Z: 9

case 3, value is: 14

Here is the second part of the same question:

s1= Have a s2= Nice day

strcat ( s1, s2) = Have a Nice day

strncat (s3, s1, 6) = Have a

Here is the code for weekdays program:

char *pDays[7];
char **pLast;
char **pWalker;

/* Statements */
pDays[0] = "Sunday";
pDays[1] = "Monday";
pDays[2] = "Tuesday";
pDays[3] = "Wednesday";
pDays[4] = "Thursday";
pDays[5] = "Friday";
pDays[6] = "Saturday";

/* Print the elements of above array so that your output would be */
printf("The days of the week ");
for(int i = 0; i < 7; i++)
printf("%s ", *(pDays + i));

And the output for the last program is:

#include <stdio.h>
typedef struct
{
int numerator;
int denominator;
} FRACTION;
int main (void)
{
/*Step 1. Create 3 objects of given structure( Suppose Fr1, Fr2, and Fr3*/
FRACTION Fr1, Fr2, Fr3;
/*Step 2. Write the statement to scan the values from the keyboard for fields of the first two objects- Fr1, and Fr2, */
printf("Enter the numerator for the first fraction: ");
scanf("%i", &Fr1.numerator);
printf("Enter the denominator for the first fraction: ");
scanf("%i", &Fr1.denominator);
printf("Enter the numerator for the second fraction: ");
scanf("%i", &Fr2.numerator);
printf("Enter the denominator for the second fraction: ");
scanf("%i", &Fr2.denominator);
/*Step 3. Multiply the numerator fields of Fr1 and Fr2 . And store the result in the numerator field of Fr3*/
Fr3.numerator = Fr1.numerator * Fr2.numerator;
Fr3.denominator = Fr1.denominator * Fr2.denominator;
printf("The product is: %i/%i ", Fr3.numerator, Fr3.denominator);
return 0;
}

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