PolandBall and Gifts
It’s Christmas time! PolandBall and his friends will be giving themselves gifts. There are n Balls overall. Each Ball has someone for whom he should bring a […]
Gifts
Kuroni and the Gifts
Kuroni has $n$ daughters. As gifts for them, he bought $n$ necklaces and $n$ bracelets: the $i$-th necklace has a brightness $a_i$, where all the […]
