OJ Board

I noticed it, too. The ID of my submission is 4920338.

That post seems no longer true because I got AC with unsigned long longs in C as well. That is, during the judgment, there are now

... no input values for which the intermediate results are too big to fit into a 32-bit number.

[situation]
It could run well in Dev C++, but could't pass the demo of acm.
I already tried my best to find the bug but in vain.
Thanks for helping!


#include <iostream>

using namespace std;

int main(){
int i=0;
int j=0;


while(cin>>i>>j){
int count;
int val=0;
if(i>j){
int tmp;
tmp ...

Me too

Java support is mentioned here. It will be greatly improved in the coming new Judge.

Instead of computing all the cycle lengths in advance, compute one only when necessary.

kamalkishore wrote:i dont know how can i get ID with suffix,

It is mentioned in the registration confirmation e-mail. You should have used it for account validation. Don't you remember it?
　

I agree.

diego andres de barros wrote:instead of while (scanf("%ld %ld",&i,&j)!=EOF)

the correct is while (scanf("%ld %ld",&i,&j)==2)

Both work, actually.

Or use:

I see. I misunderstood its meaning. Thanks a lot.

The input description says:
You can assume that no opperation overflows a 32-bit integer.
But, actually, there is a total of 883 occurrences where a "3n + 1" operation overflows a 32-bit unsigned integer; in particular, a maximum value of 56,991,483,520 will be reached if the original n is 704,511 ...

I had tried to find it, but it wasn't there. I will register again. Thank you very much.

Best regards,
Jin-tong

Maybe, with files, it's easier to understand:
#include <iostream>
#include <fstream>

using namespace std;

int main()
{
ofstream outfile("__test__.txt");

outfile << "You will not see this string till outfile.flush() is run.";
cin.get(); // open __test__.txt to check if it contains the string ...

If you compile on Windows, using "%I64d" instead of "%lld" may work.