Q: if a five digit number is input through the keyboard write a program to reverse the number.

By -

# include <stdio.h>
int main()
{
    int n,rem,rev;
   
    printf("enter any number : ");
    scanf("%d",&n);
   
    while(n!=0)              /*condition used until n becomes zero*/
   
    {
        rem= n%10;           /*to find the last digit of no*/
        n=n/10;                   /*as n is int so n/10 also be int*/
        rev=rev*10+rem;    /*to find the reverse of the no entered*/
    }
   
    printf("reverse of no is %d",rev);
   
    return 0;
}
-----------------------------------------
output:

enter any number : 12345
reverse of no is 54321

Comments

Post a Comment

Popular posts from this blog

Q: Two number are input through the keyboard into two two locations C and D. write a program to interchange the contents of C and D.

By -
#include <stdio.h> int main() {     float C,D;    /*C and D are two variables*/         printf("enter value of C and D respectivly:");     scanf("%f%f",&C,&D);         /*steps to interchange value of two variables*/     C=C+D;     D=C-D;     C=C-D;         printf("value of C is %f\nvalue of D is %f\n",C,D);         return 0; } ----------------------------------------- output : enter value of C and D respectivly:5 4 value of C is 4.000000 value of D is 5.000000  
Read more

Q: Consider a currency system in which there are note of seven denominations, namely, Rs. 1, Rs. 2, Rs. 5, Rs. 10, Rs. 50, Rs. 100. if a sum of Rs. N is entered through the keyboard, write a program to compute the smallest number of notes that will combine to give Rs N.

By -
#include <stdio.h> #include <math.h> int main() {     int x,a,b,c,d,e,f;         printf("enter total amount of money\n");     scanf("%d",&x);         /*floor fun is used to get significant value*/         a=floor(x/100);     b=floor((x%100)/50);     c=floor(((x%100)%50)/10);     d=floor((((x%100)%50)%10)/5);     e=floor(((((x%100)%50)%10)%5)/2);     f=floor(((((x%100)%50)%10)%5)%2);         printf("note of 100 = %d\nnote of 50 = %d\nnote of 10 = %d\nnote of 5 = %d\nnote of 2 =                                       %d\nnote of 1 = %d\n",a,b,c,d,e,f); return 0; } ----------------------------------------- output : enter total amount of mon...
Read more