sgeteternal
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Trucking
Time Limit: 20000/10000 MS (Java/Others) Memory Limit: 32768/32768 K (Java/Others)Total Submission(s): 796 Accepted Submission(s): 268
Problem Description
A certain local trucking company would like to transport some goods on a cargo truck from one place to another. It is desirable ...
find the safest road
Time Limit: 10000/5000 MS (Java/Others) Memory Limit: 32768/32768 K (Java/Others)Total Submission(s): 1533 Accepted Submission(s): 581
Problem Description
XX星球有很多城市，每个城市之间有一条或多条飞行通道，但是并不是所有的路都是很安全的，每一条路有一个安全系数s,s是在 0 和 1 间的实数(包括0，1)，一条从u 到 v 的通道P 的安全度为Safe(P) = s(e1)*s(e ...
N皇后问题
Time Limit: 2000/1000 MS (Java/Others) Memory Limit: 32768/32768 K (Java/Others)Total Submission(s): 1753 Accepted Submission(s): 769
Problem Description
在N*N的方格棋盘放置了N个皇后，使得它们不相互攻击（即任意2个皇后不允许处在同一排，同一列，也不允许处在与棋盘边框成45角的斜线上。你的任务是，对于给定的N，求出有多少种合法的放置方法。
Input
共有若干行，每行一个正整数N≤10，表示棋盘 ...
Surround the Trees
Time Limit: 2000/1000 MS (Java/Others) Memory Limit: 65536/32768 K (Java/Others)Total Submission(s): 3223 Accepted Submission(s): 1230
Problem Description
There are a lot of trees in an area. A peasant wants to buy a rope to surround all these trees. So at first he must kn ...
开门人和关门人
Time Limit: 2000/1000 MS (Java/Others) Memory Limit: 65536/32768 K (Java/Others)Total Submission(s): 5354 Accepted Submission(s): 2759
Problem Description
每天第一个到机房的人要把门打开，最后一个离开的人要把门关好。现有一堆杂乱的机房签 到、签离记录，请根据记录找出当天开门和关门的人。
Input
测试输入的第一行给出记录的总天数N ( > 0 )。下面列出了N天的记录。 每天的记录在 ...
爆头
Time Limit: 2000/1000 MS (Java/Others) Memory Limit: 65536/32768 K (Java/Others)Total Submission(s): 703 Accepted Submission(s): 245
Problem Description
gameboy是一个CS高手，他最喜欢的就是扮演警察，手持M4爆土匪的头。也许这里有人没玩过CS，有 ...
How Many Fibs?
Time Limit: 2000/1000 MS (Java/Others) Memory Limit: 65536/32768 K (Java/Others)Total Submission(s): 1212 Accepted Submission(s): 501
Problem Description
Recall the definition of the Fibonacci numbers: f1 := 1 f2 := 2 fn := fn-1 + fn-2 (n >= 3) Given two numbers a and b, ca ...
Ignatius and the Princess III
Time Limit: 2000/1000 MS (Java/Others) Memory Limit: 65536/32768 K (Java/Others)Total Submission(s): 4658 Accepted Submission(s): 3263
Problem Description
"Well, it seems the first problem is too easy. I will let you know how foolish you are later." fe ...
Tempter of the Bone
Time Limit: 2000/1000 MS (Java/Others) Memory Limit: 65536/32768 K (Java/Others)Total Submission(s): 23728 Accepted Submission(s): 6527
Problem Description
The doggie found a bone in an ancient maze, which fascinated him a lot. However, when he picked it up, the maze bega ...
Telescope
Time Limit: 1000MS
Memory Limit: 65536K
Total Submissions: 1178
Accepted: 308
Description
Updog is watching a plane object with a telescope. The field of vision in the telescope can be described as a circle. The center is at the origin and the radius is R. The obj ...
Wall
Time Limit: 1000MS
Memory Limit: 10000K
Total Submissions: 18398
Accepted: 5992
Description
Once upon a time there was a greedy King who ordered his chief Architect to build a wall around the King's castle. The King was so greedy, that he would not listen to his Archite ...
Common Subsequence
Time Limit: 2000/1000 MS (Java/Others) Memory Limit: 65536/32768 K (Java/Others)Total Submission(s): 8893 Accepted Submission(s): 3578
Problem Description
A subsequence of a given sequence is the given sequence with some elements (possible none) left out. Given a sequence ...
命运
Time Limit : 2000/1000ms (Java/Other) Memory Limit : 32768/32768K (Java/Other)
Total Submission(s) : 9 Accepted Submission(s) : 4
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Problem Description
穿过幽谷意味着离大魔王lemon已经无限接近了！可谁能想到，yifenfei在斩杀了一些虾兵蟹将后，却再次面临命运大迷宫的考验，这是魔王lemon设下的又一 ...
逃离迷宫
Time Limit: 1000/1000 MS (Java/Others) Memory Limit: 32768/32768 K (Java/Others)Total Submission(s): 3619 Accepted Submission(s): 860
Problem Description
给定一个m × n (m行, n列)的迷宫，迷宫中有两个位置，gloria想从迷宫的一个位置走到另外一个位置，当然迷宫中有些地方是空地，gloria可以穿越，有些地方是障碍，她必须绕行，从迷宫的一个位置，只能走到与它相邻的4个位置中,当然在行走过程中，glori ...
Leftmost Digit
Time Limit: 2000/1000 MS (Java/Others) Memory Limit: 65536/32768 K (Java/Others)Total Submission(s): 5483 Accepted Submission(s): 2080
Problem Description
Given a positive integer N, you should output the leftmost digit of N^N.
Input
The input contains several test ca ...