学步园

//题意：把n*n分成n个形状不一样的图形，用G.Y,B,R给这些矩形上色（如果相邻俩个图形颜色一样，就和并在一起了，不成立），存在输出n*n的矩形（用G,Y,B,R表示），不存在输出No solution！； //思路：2,3,4不成立，6要自己构造，其它基本都是一个思路，大致上图片的意思，具体思路大家输出来看看，我也不知道该怎么描述； #include <cstdio> #include <cstring> #include <algorithm> #include <iostream...

Cash Machine Time Limit: 1000MS   Memory Limit: 10000K Total Submissions: 22011   Accepted: 7723 Description A Bank plans to install a machine for cash withdrawal. The machine is able to deliver appropriate @ bills for a requested cash amount. The machine uses exactly N distinct bill denominations, say Dk, k=1,N, and for each denomination Dk the machine has a supply of nk bills. F...

Divisibility Time Limit: 1000MS   Memory Limit: 10000K Total Submissions: 9199   Accepted: 3197 Description Consider an arbitrary sequence of integers. One can place + or - operators between integers in the sequence, thus deriving different arithmetical expressions that evaluate to different values. Let us, for example, take the sequence: 17, 5, -21, 15. There are eight possible e...

Balance Time Limit: 1000MS   Memory Limit: 30000K Total Submissions: 8227   Accepted: 5000 Description Gigel has a strange "balance" and he wants to poise it. Actually, the device is different from any other ordinary balance.  It orders two arms of negligible weight and each arm's length is 15. Some hooks are attached to these arms and Gigel wants to hang up some weights from his c...

Tian Ji -- The Horse Racing Time Limit: 5000MS   Memory Limit: 65536K Total Submissions: 9328   Accepted: 2866 Description Here is a famous story in Chinese history.  That was about 2300 years ago. General Tian Ji was a high official in the country Qi. He likes to play horse racing with the king and others.  Both of Tian and the king have three horses in different classes, namely, ...

Mayor's posters Time Limit: 1000MS   Memory Limit: 65536K Total Submissions: 33753   Accepted: 9788 Description The citizens of Bytetown, AB, could not stand that the candidates in the mayoral election campaign have been placing their electoral posters at all places at their whim. The city council has finally decided to build an electoral wall for placing the posters and introduce...

Candies Time Limit: 1500MS   Memory Limit: 131072K Total Submissions: 20467   Accepted: 5421 Description During the kindergarten days, flymouse was the monitor of his class. Occasionally the head-teacher brought the kids of flymouse’s class a large bag of candies and had flymouse distribute them. All the kids loved candies very much and often compared the numbers of candies they ...

Is the Information Reliable? Time Limit: 3000MS   Memory Limit: 131072K Total Submissions: 9890   Accepted: 3067 Description The galaxy war between the Empire Draco and the Commonwealth of Zibu broke out 3 years ago. Draco established a line of defense called Grot. Grot is a straight line with N defense stations. Because of the cooperation of the stations, Zibu’s Marine Glory can...

King Time Limit: 1000MS   Memory Limit: 10000K Total Submissions: 8777   Accepted: 3305 Description Once, in one kingdom, there was a queen and that queen was expecting a baby. The queen prayed: ``If my child was a son and if only he was a sound king.'' After nine months her child was born, and indeed, she gave birth to a nice son.  Unfortunately, as it used to happen in royal fami...

Dining Time Limit: 2000MS   Memory Limit: 65536K Total Submissions: 7589   Accepted: 3472 Description Cows are such finicky eaters. Each cow has a preference for certain foods and drinks, and she will consume no others. Farmer John has cooked fabulous meals for his cows, but he forgot to check his menu against their preferences. Although he might not be able to stuff everybody, he ...