### [poi2011]bzoj 2277 —— strongbox·[洛谷3518]

·问题描述· 有一个密码箱，0到n-1中的某些数是它的密码。且满足：如果a和b都是它的密码，那么（a+b）%n也是它的密码。某人试了k次密码，前k-1次都失败了，最后一次成功。 问：该密码箱最多有多少个密码？ ·输入格式· 输入第一行两个整数分别表示n，k。 第二行为k个用空格隔开的非负整数，表示每

### poj1958——Strange Towers of Hanoi

The teacher points to the blackboard (Fig. 4) and says: "So here is the problem: There are three towers: A, B and C. There are n disks. The number n i

### poj2299——Ultra-QuickSort

Description In this problem, you have to analyze a particular sorting algorithm. The algorithm processes a sequence of n distinct integers by swapping

### poj2018——Best Cow Fences

Description Farmer John's farm consists of a long row of N (1 <= N <= 100,000)fields. Each field contains a certain number of cows, 1 <= ncows <= 2000

### poj2279——Mr. Young's Picture Permutations

Description Mr. Young wishes to take a picture of his class. The students will stand in rows with each row no longer than the row behind it and the le

### poj1456——Supermarket

Supermarket Time Limit: 2000MS Memory Limit: 65536K Total Submissions: 14656 Accepted: 6656 Description A supermarket has a set Prod of products on sa

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