recursion

Base conversion program from decimal

#include<stdio.h>

void convert(int dec,int base)

{

if(dec<base)

{

printf(" %d",dec);

return;

}

int n=dec%base;

convert(dec/base,base);

printf(" %d",n);

}

void main()

{

int dec,base;

printf("Enter the decimal number : ");

scanf("%d",&dec);

        printf("Enter the base : ");

        scanf("%d",&base);

        convert(dec,base);

}

         Printing Digits of a Number

function display prints digit in actual order while the function revdisplay prints the digit in reverse order

#include<stdio.h>

void display(int n)

{

if(n<10)

{

printf(" %d",n);

return;

}

int dig=n%10;

display(n/10);

    printf(" %d",dig);

}

void revdisplay(int n)

{

if(n==0)

{

return;

}

int dig=n%10;

    printf(" %d",dig);

revdisplay(n/10);

}

void main()

{

int num;

printf("Enter the number : ");

scanf("%d",&num);

printf("\nDigits of the number in actual order is : ");

display(num);

printf("\nDigits of the number in reverse order is : ");

revdisplay(num);

}