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(共28篇)
【CodeForces - 501C】Misha and Forest (思维构造,树,数学异或)
题干: Let's define a forest as a non-directed acyclic graph (also without loops and parallel edges). One day Misha played with the forest consisting of...
2018-12-27
0
454
【CodeForces - 507B】Amr and Pins(思维贪心,几何问题)
题干: Amr loves Geometry. One day he came up with a very interesting problem. Amr has a circle of radius r and center in point (x, y). He wants the ci...
2018-12-27
0
613
【牛客 - 315B】 勇气获得机(二叉树性质,思维,知识点,tricks)
题干: 妞妞听说Nowcoder Girl女生编程挑战赛要开始了, 但是她没有足够的勇气报名参加, 牛牛为了帮助妞妞,给她准备一台勇气获得机。初始的时候妞妞的勇气值是0, 勇气获得机有两个按钮: 1、N按钮: 如果当期拥有的勇气值为x, 按下之后勇气值将变为2*x+1, 2、G按钮: 如果...
2018-12-26
0
613
【牛客 - 289H】约会(思维,数学,奇偶数,水题)
题干: Hang等了一年,终于,朝气蓬勃的小学妹来了,在开学当天,就成功打入协会迎新群,在Hang的魅力(死皮赖脸)之下,有个小学妹要和他面基了,小学妹说,她就在这个学校里,让Hang过去找她 假设,在二维坐标的每个点,都有一个女生,但是Hang不知道哪个是和他约会小学妹 所以他在每一个位...
2018-12-17
0
449
【CodeForces - 1084C】The Fair Nut and String(思维,组合数学)
题干: The Fair Nut found a string ss. The string consists of lowercase Latin letters. The Nut is a curious guy, so he wants to find the number of stric...
2018-12-11
0
495
【CodeForces - 312C】The Closest Pair (思维)
题干: Currently Tiny is learning Computational Geometry. When trying to solve a problem called "The Closest Pair Of Points In The Plane", he ...
2018-11-29
0
773
【CodeForces - 278C 】Learning Languages(并查集,思维)
题干: The "BerCorp" company has got n employees. These employees can use m approved official languages for the formal correspondence. The lan...
2018-11-20
0
585
【CodeForces - 270C】Magical Boxes (思维,进制,有坑)
题干: Emuskald is a well-known illusionist. One of his trademark tricks involves a set of magical boxes. The essence of the trick is in packing the box...
2018-11-18
0
532
【51Nod - 1344】走格子 (思维)
题干: 有编号1-n的n个格子,机器人从1号格子顺序向后走,一直走到n号格子,并需要从n号格子走出去。机器人有一个初始能量,每个格子对应一个整数Aii,表示这个格子的能量值。如果Aii > 0,机器人走到这个格子能够获取Aii个能量,如果Aii < 0,走到这个格子需要消耗相应的能量,...
2018-11-11
0
474
【CodeForces - 227C】Flying Saucer Segments (思维)
题干: An expedition group flew from planet ACM-1 to Earth in order to study the bipedal species (its representatives don't even have antennas on their ...
2018-11-03
0
613
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