Thread: How to find digit place in number

How to figure out digit place in given number

Example
Input
Input number: 6294Output
digit place 1: 6
digit place 2: 2
digit place 3: 9
digit place 2: 4
What is logic to find digit place in number given number

Originally Posted by stahta01

I would use the logic commonly used to reverse the order or digits.
In example, the code to change "6294" to "4926".

Good point. I had not this idea how to change "6294" to "4926" like first see the number in last digit is 4 so store then store it in another variable then see second last digit is 9 then store value in variable

Originally Posted by stahta01

The way to change "6294" to "4926" in simple beginner code;

Uses divide by 10 and modulus by 10. The % percent sign is the C modulus operator.

Tim S.

I can do it but I am looking another way

Code:

#include<stdio.h>

int main (void)
{
	unsigned int number = 6294;
    int	reverse=0; 
	
	while (number != 0)
	{
		reverse = reverse * 10;


		reverse = reverse + number % 10;


		number   = number / 10;
	}


	printf("Reverse number is = %d \n", reverse);
		
	return 0;
}

Reverse number is = 4926

Do you know any another way like I was saying ?

How about this, just uses inter math.
If the division return zero then you know the number does not take up that place holder

6294/1000=6

6294-6*1000= 294 subtract last result to get next number

294/100=2

294-200=94

94/10=9

94-90=4

4/1=4

4-4*1=0 your done !