How To Count Digits Between any numbers[Urgent]

Hi Dps
I am automating an statistic forumala,
i am an BSCS student i want a help
that suppose i have integers from 1 to 10 or 2 to 5
b/w 2 to 5 there are there are 5 digits ie 2,3,4,5
how i can count them in C only with C,,, Which function i have to use and what function i have to use to add whole column in C
Thanks In Advance

 

2 to 5 -> 2,3,4,5 -> 4 ?
Or do you mean something else ?
Anyway, try to do your homework yourself.

 

any way it is 4 digits i want to count them by C it is not my home work it is i am practicing

 

sorry but if you can not solve this one by yourself you will never learn I think.

 

Here's the logic.
Do the increment from the small number to the big number

for (i=small number,small_number -> big number){
i++;
if (i<big number) count++;
}

 

the formula is much easier, you just need 1 small formula.

bignumber - smallnumber + 1

 

that would be much easier but not reliable. what if the number is negative?

 

you're right but the answer is still simplier

bignumber - (smallnumber - 1)

 

can't you get it simply by (5-2)+1 ?

So in general (big number - small number) + 1

 

yes, is also right

 

Since you are going to use C for this, you can easily get this done without considering the numbers as below. abs is used to get the absolute value of the difference.

#include <math.h>

abs(number_1 - number_2) + 1