7/31/2019 C Question and Answer

1/4

*Q.1 (b) Write a C program using pointers to read in an array of integers and print its elements in

reverse order.[June-2005, Set-2, Unit-3, Q.No.-5]

Ans. :

Program to read integers into an array and reversing them using pointers.*/#include

#include

#define MAX 30void main()

{int size,i,arr[MAX];int *ptr;

clrscr();

ptr=&arr[0];

printf("Enter the size of array: ");scanf("%d",&size);

printf("\nEnter %d integers into array:\n",size);

for(i=0;i=0;i--)

{

printf("\nElement%d is %d :",i,*ptr);

ptr--;}

getch();

}

*Q.1 (b) An electric power distributioncompany charges its domestic consumers as follows:

Consumption Units Rate of Charge

0-200 Rs.0.50 per unit201-400 Rs.100 plus Rs.0.65 per unit excess 200

7/31/2019 C Question and Answer

2/4

401-600 Rs.230 plus Rs.0.80 per unit excess of 400.Write a C program that reads the customer number and power consumed and prints the amount

to be paid by the customer. [Nov./Dec.-2005,Set-3, Unit-1, Q.No.-34]

Ans. : */#include

#include

void main(){

int n, p;

float amount;

clrscr();printf("Enter the customer number: ");

scanf("%d",&n);

printf("Enter the power consumed: ");scanf("%d",&p);

if(p>=0 && p200 && p400 && p

7/31/2019 C Question and Answer

3/4

#include#include

void main()

{int a[10];

int i,sum=0;

int *p;printf("Enter 10 elements:\n");

for(i=0;i

7/31/2019 C Question and Answer

4/4

scanf("%f",&set.st.percentage);clrscr();

printf("The student details are:\n");

printf("Name : %s", set.st.name);printf("\nRollno : %d", set.st.rollno);

printf("\nSex : %c", set.st.sex);

printf("\nPercentage : %f", set.st.percentage);getch();

}