摘要:
John Doe has a crooked fence, consisting ofnrectangular planks, lined up from the left to the right: the plank that goesi-th(1 ≤ i ≤ n)(from left to r... 阅读全文
摘要:
You're playing a game called Osu! Here's a simplified version of it. There arenclicks in a game. For each click there are two outcomes: correct or bad... 阅读全文