Help In C files

I have to create a ranges out of these lines in file

Input:
------------
9849201348
9849201349
9849201350
9849201400
9849203000
9849209000
9849210000
9849215000
9849220000

output
-------
range 1: 9849201348 to 9849210000

range 2: 9849215000 to 9849220000

Usually there will be millions of lines of code .The numbers will be in sorted order but not in a consecutive manner...like after 9849201350 ,9849201400 may appear...The difference between

9849201400 -9849201350 =50 .If the difference between 2 numbers is greater than 10000 then we have to take the numbers encountered as one range.

i,e range 1: 9849201348 to 9849210000 for the above example...

If i follow the rule like taking the first line in the series and adding 10000 and taking it as one range ..But the number may not be present in the file.so shall i have to go linear way or what...Can anyone please send me the code for getting the output as shown above in C language....

Quote:

---

Can anyone please send me the code for getting the output as shown above in C language....

---

Sure , how much will you pay?

no ideas r what

Oh sure, we have plenty of ideas. No one here however is going to simply do everything for you. Go read the forum announcements and try your post again after you've done some work on it. Mmmm watermelon!

Quzah.

Suppose if i have to read two lines in a loop then how should i do that

for example below r 2 lines and how should i get the values and store them...

9849201348
9849201349


fp=fopen("input.txt","r");

if (fp==NULL)
{
printf ("\n File does not exist....");
exit(0);
}

while (fgets(ln,100,fp)!=NULL)

{

/* Here i get only one line ..... *///


how should i store 2 values and compare that ...

}
pls help me

use code tags
you will find that in the sticky at the top of the forum

1) Go read the announcements like I told you.
2) Use code tags, as the announcements tell you.
3) You could always store them as arrays. There are various ways to compare these.
4) If you yourself were comparing them, how do you do it? Write it out on paper in simple steps. Then try to do those steps in code.

Quzah.