The contest will start on December 13, 2024 at 10:00pm UTC+6:00 and will run for
1 hour .
The contest will be rated for all the participants making at least one submission. The rating changes will be applied once the contest ends.
It is open for everyone to participate.
Contest Link: Calibration Round #61 | Gonitzoggo
why can’t I participate in the contest?
same here
although i have registered
The contest begins at 10!
There are some issues with Problem D and E. Gonitzoggo team should be more careful about the problems of Calibration Round. It’s rated.
In Problem D,
The area [GDEF]=4. But a+\sqrt{b}=4 has infinitely many solutions. So, there is no absolute answer to this question.
In Problem E,
AC=2r, so, AC is the diameter and \angle AOC=180\degree. And given, \angle AOC=2\angle BOD. So, \angle BOD=90\degree.
Clearly, OB=OD=r.
Using Pythagoras,
BD=\sqrt{r^2+r^2}
And given, BD=r\sqrt{3},
That leads to,
r\sqrt{2}=r\sqrt{3}
\Rightarrow \sqrt{2}=\sqrt{3}
That’s a mathematical contradiction.
mollamdkashem22 to contest end howar por scoreboard e 11th number e chilo ekhon o 4th e keno?
Contest er rating kokhn dibe …(im new hr)