If a five digit number is input through the keyboard write a program to the reverse the number.

/* Reverse digits of a 5- digits number.*/

#include<stdio.h>

int main()

{

int n ,d5,d4,d3,d2,d1;

long int revnum;

printf("\n Enter a five digit number (less than 32767):");

scanf("%d",&n);

d5=n%10; //5th digit

n=n/10; //remaining digits

d4=n%10; //4th digits

n=n/10; //remaining digit

d3=n%10; //3th digits

n=n/10; //remaining digits

d2=n%10; //2th digits

n=n/10; //remaining digits

d1=n%10; //1th digits

revnum=d5*10000+d4*1000+d3*100+d2*10+d1;

//specifier %Id is used for a printing a long integer

printf("The reverse number is %1d\n",revnum);

return 0 ;

}

output--- Enter a five digit number (less than 32767): 1 2 3 4 5

The reverse number is: 5 4 3 2 1

paper of size A0 has dimensions 1189 mm X 841 mm .Each subsequent size A(n) is defined as A(n-1) cut in half parallel to its shorter sides .Thus paper of size A1 would have dimensions 841 mm X 594 mm .Write a program to calculate the print paper sizes A0,A1,A2,.........A8.

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