OJ Board

what's wrong..????
:roll: :roll:
#include <sys/types.h>
#include <sys/stat.h>
#include <fcntl.h>
#include <stdio.h>
#include<io.h>

void main()
{
#ifndef ONLINE_JUDGE
close(0);
open("data.txt",O_RDONLY);
close(1);open("jwb.txt",O_WRONLY|O_CREAT, 0600);
#endif
int a,b,c,beres=0;
int poin1=1 ...