OJ Board

Maybe the testcases aren't correct. I don't think the problem is that difficult...
The only thing I can come up with is that there is some trick with the format, although I copy-pasted it and I am getting WA...

Anyone has some correct i/o for problem 580? thx a lot!!!!

Thx a lot! I found this function on the Internet but didn't know very well how it worked. Now I got AC. Thx a lot!!!

Hi people. I got PE in that program and when I run it i think it outputs in a correct way. Anyone knows the reason

Oh thx sorry I read wrong the problem. I didn't look i was looking only for the odd terms . thx a lot. I got AC now.

I am trying to solve this so easy problem but I keep getting wrong answer. plz can someone tell me why?? Thx!
#include <stdio.h>
#include <stdlib.h>

int main()
{
long t, a,b,c=0,r;
scanf("%d",&t);
while (t>0){
c++;
scanf("%d", &a);
scanf("%d", &b);
/*r=(1+(b-a)/2)*((a+b)/2);*/
r=0;
while ...

Hi people;
In all the problems I have submitted via web (156,397,562,10071) I always got the "Can't be judged" error, and these problems are currently being solved by other people. I just don't know what to do about it. Can please someone help me?
thx!