zxiaopp的专栏

Oil DepositsTime Limit: 2000/1000 MS (Java/Others)    Memory Limit: 65536/32768 K (Java/Others)Total Submission(s): 15489    Accepted Submission(s): 8888Problem DescriptionThe GeoSurvC

棋盘问题Time Limit: 1000MS Memory Limit: 10000KTotal Submissions: 29625 Accepted: 14690Description在一个给定形状的棋盘（形状可能是不规则的）上面摆放棋子，棋子没有区别。要求摆放时任意的两个棋子不能放在棋盘中的同一行或者同一列，请编程求解对

A Knight's JourneyTime Limit: 1000MS Memory Limit: 65536KTotal Submissions: 36767 Accepted: 12489DescriptionBackground The knight is getting bored of seeing the s

Following OrdersTime Limit: 1000MS Memory Limit: 10000KTotal Submissions: 4348 Accepted: 1751DescriptionOrder is an important concept in mathematics and in comp

GolygonsImagine a country whose cities have all their streets laid out in a regular grid. Now suppose that a tourist with an obsession for geometry is planning expeditions to several such cities.

The Center City fire department collaborates with the transportation department to maintain maps of the city which reflects the current status of the city streets. On any given day, several streets ar

Tempter of the BoneTime Limit: 2000/1000 MS (Java/Others)    Memory Limit: 65536/32768 K (Java/Others)Total Submission(s): 85142    Accepted Submission(s): 23196Problem DescriptionThe

FatMouse and CheeseTime Limit: 2000/1000 MS (Java/Others)    Memory Limit: 65536/32768 K (Java/Others)Total Submission(s): 5669    Accepted Submission(s): 2302Problem DescriptionFatMou

Prime Ring ProblemTime Limit: 4000/2000 MS (Java/Others)    Memory Limit: 65536/32768 K (Java/Others)Total Submission(s): 31783    Accepted Submission(s): 14053Problem DescriptionA rin

ZipperTime Limit: 2000/1000 MS (Java/Others)    Memory Limit: 65536/32768 K (Java/Others)Total Submission(s): 7572    Accepted Submission(s): 2671Problem DescriptionGiven three strings

N皇后问题Time Limit: 2000/1000 MS (Java/Others)    Memory Limit: 32768/32768 K (Java/Others)Total Submission(s): 10703    Accepted Submission(s): 4797Problem Description在N*N的方格棋盘放置了N个皇后，使得