Let N be a positive integer. There is a numerical sequence of length 3N, a=(a1,a2,…,a3N). Snuke is constructing a new sequence of length 2N, a', by re ...
分类：
其他好文 时间：
2019-01-25 14:08:29
阅读次数：
114
Description On a table are cards, with a positive integer printed on the front and back of each card (possibly different). We flip any number of cards ...
分类：
其他好文 时间：
2019-01-24 23:05:09
阅读次数：
237
1008 Elevator （20 分） The highest building in our city has only one elevator. A request list is made up with N positive numbers. The numbers denote at ...
分类：
其他好文 时间：
2019-01-24 15:37:21
阅读次数：
144
1127 ZigZagging on a Tree （30 分） Suppose that all the keys in a binary tree are distinct positive integers. A unique binary tree can be determined by ...
分类：
其他好文 时间：
2019-01-22 14:26:39
阅读次数：
687
C. Classy Numbers C. Classy Numbers time limit per test 3 seconds memory limit per test 256 megabytes input standard input output standard output C. C ...
分类：
其他好文 时间：
2019-01-22 13:15:12
阅读次数：
202
#Given a set of distinct positive integers, find the largest subset such that every pair (Si, Sj) of elements in this subset satisfies:#Si % Sj = 0 or ...
分类：
其他好文 时间：
2019-01-22 00:34:37
阅读次数：
192
Three companies decided to order a billboard with pictures of their logos. A billboard is a big square board. A logo of each company is a rectangle of ...
分类：
其他好文 时间：
2019-01-20 00:59:14
阅读次数：
335
Given a number of different denominations of coins (e.g., 1 cent, 5 cents, 10 cents, 25 cents), get all the possible ways to pay a target number of ce ...
分类：
其他好文 时间：
2019-01-19 11:27:05
阅读次数：
111
题目: Given a pair of positive integers, for example, 6 and 110, can this equation 6 = 110 be true? The answer is yes, if 6 is a decimal number and 110 ...
分类：
其他好文 时间：
2019-01-18 13:58:46
阅读次数：
218
``` Write a program to check whether a given number is an ugly number`. Ugly numbers are positive numbers whose prime factors only include 2, 3, 5. Fo ...
分类：
其他好文 时间：
2019-01-18 10:19:24
阅读次数：
181
