Write a C program that prompts the user to enter an integer, and then prints out

Question

Write a C program that prompts the user to enter an integer, and then prints out its decimal digits, each one on a separate line, starting with the least signicant (rightmost) digit. Each printed line should indicate which of the digits is being printed. Note that the user can input either a positive or a negative integer: the inputs n and -n, where n is an integer, should produce exactly the same output. Here are three sample runs of this program.

Enter an integer: 512
Digit (1): 2
Digit (2): 1
Digit (3): 5

Enter an integer: 0
Digit (1): 0

Enter an integer: -16
Digit (1): 6
Digit (2): 1

Hint: You can use the integer division and modulo operators to parse a positive integer into its digits.
For example, n%10 produces the least signicant digit of n, while n/10 deletes this digit.

Explanation / Answer

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#include <stdio.h>
#include <conio.h>
int main()
{int n,digit,i;
printf("Enter a number: ");
scanf("%d",&n);
if(n<0)
   n*=-1;
i=0;
while(n>0||i==0)
   {i++;
    digit=n%10;
   printf("Digit (%d): %d ",i,digit);
   n/=10;
   }
getch();
return 0;
}

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