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## Discussion of Problem 1344. Gigantic Turnip

Posted by ftc 22 Jun 2008 18:17
Please check test #20 for this problem. It seems to be incorrect. There is a pulley X which is connected to Y, but Y is not connected to X. I think so, because i got WA20, then added such code and got AC.
Code:
for (i = 0; i < n; i++)
{
if (blk[i].y > 0)
{
int t = blk[i].y - 1;
if ((blk[t].x1 != i + 1) && (blk[t].y != i + 1) && (blk[t].x2 != i + 1))
{
cout << "1.0000";
return;
}
}
if (blk[i].x1 > 0)
{
int t = blk[i].x1 - 1;
if ((blk[t].x1 != i + 1) && (blk[t].y != i + 1) && (blk[t].x2 != i + 1))
{
cout << "1.0000";
return;
}
}
if (blk[i].x2 > 0)
{
int t = blk[i].x2 - 1;
if ((blk[t].x1 != i + 1) && (blk[t].y != i + 1) && (blk[t].x2 != i + 1))
{
cout << "1.0000";
return;
}
}
}
Test 20 is corrected. Thank you. (-)
Posted by Sandro (USU) 23 Jun 2008 13:47