OJ Board

you get integer overflow

Although I have seen all the threads about 10055, I still cannot figure out the problem it is.
[pascal]
var
a,b:longint;
begin
while not eof do
begin
readln(a,b);
if a>b then writeln(a-b)
else writeln(b-a)
end
end.
[/pascal]

Can anyone slove my problem? Thanks.

The input numbers are not greater than 2^32

Longint only gives you numbers up to 2^31-1,
Cardinal only gives you up to 2^32-1

So...

so....
Use real!

But... Turbo Pascal doesn't have Cardinal.
Can anyone teach me how to use this type?

...Use real?

I can solve that by using real!
Thanks For help!

I tried the input 4294967296 0
and it returned 4294967296.

I tested with the GNU G++ and Dev C++ compiler and it worked fine.

However, I got WA...

[cpp]
// ACM Problem 10055
// Hashmat the brave warrior
// Done by Teh Ming Han

#include <iostream.h>

using namespace std;

int main(){
while (!cin.eof()){
unsigned long long int i=0,j=0,ch=0;

cin>>i>>j;
if (i>j)ch = i-j;
else ch=j-i;
cout<<ch<<endl;
}
return 0;
}[/cpp]

SO WHY DO I GET WRONG ANSWER?

Why don't you guys simply use double?

Are you sure you did not get WA for using double?
And did you read the question carefully?

Ming Han

Ok. I finally got accepted for this question.

For those who got WA, here are some good hints:
1. use long long data type.
2. create your own abs() function.

Happy programmmng.

Ming Han

Try to use float data type. [/c]

long long should do.

Hi guys! I got a Time Limit Exceeded the last I posted this code for p10055. Any idea why it happened ???

[cpp]---CODE WAS CUT---[/cpp]

try instead of Best regards
Dominik

I think Dominik means this: