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Number Sequence（HDU1005）
Number SequenceTime Limit: 2000/1000 MS (Java/Others) Memory Limit: 65536/32768 K (Java/Others)Total Submission(s): 70207 Accepted Submission(s): 16285Problem DescriptionA number sequence is def原创 2013-08-16 09:04:33 · 418 阅读 · 0 评论 -
The 3n + 1 problem（HDU1032）
The 3n + 1 problemTime Limit: 2000/1000 MS (Java/Others) Memory Limit: 65536/32768 K (Java/Others)Total Submission(s): 16462 Accepted Submission(s): 6061Problem DescriptionProblems in Compu原创 2013-08-16 09:04:56 · 562 阅读 · 0 评论 -
Eddy\'s research I(HDU1164)
Eddy's research ITime Limit: 2000/1000 MS (Java/Others) Memory Limit: 65536/32768 K (Java/Others)Total Submission(s): 4570 Accepted Submission(s): 2736Problem DescriptionEddy's interest is very原创 2013-08-16 09:04:51 · 525 阅读 · 0 评论 -
椭圆相交问题
描述最近天文学家发现了一对奇特的卫星，分别命名为A和B。我们知道，卫星通常以椭圆轨道移动，A和B也一样。但是他们的轨迹非常特殊： （1）他们的轨迹在同一平面，具有相同的圆心。 （2）连接两个焦点组成的部分互相垂直。 如果我们将中心标为O，A的焦点为F1和F2，我们就可以建立笛卡尔坐标，O点为圆心，通过F1和F2的为X轴。 下面是一个例子： 天文学家想了解卫星更多东西，他们决定计算其相交面积。不幸原创 2013-08-16 09:04:54 · 2111 阅读 · 0 评论 -
不可摸数(HDU1999)
不可摸数Time Limit: 2000/1000 MS (Java/Others) Memory Limit: 65536/32768 K (Java/Others)Total Submission(s): 6240 Accepted Submission(s): 1619Problem Descriptions(n)是正整数n的真因子之和，即小于n且整除n的因子和.例如s(12)=原创 2013-08-16 09:04:47 · 1116 阅读 · 0 评论 -
A + B Problem II（HDU1002）
A + B Problem IITime Limit: 2000/1000 MS (Java/Others) Memory Limit: 65536/32768 K (Java/Others)Total Submission(s): 138369 Accepted Submission(s): 26247Problem DescriptionI have a very simple p原创 2013-08-16 09:04:29 · 504 阅读 · 0 评论 -
The calculation of GPA (HDU1202)
The calculation of GPATime Limit: 2000/1000 MS (Java/Others) Memory Limit: 65536/32768 K (Java/Others)Total Submission(s): 14162 Accepted Submission(s): 3291Problem Description每学期的期末，大家都会忙于计算自己的原创 2013-08-16 09:04:45 · 971 阅读 · 0 评论 -
Rightmost Digit（HDU1061）
Rightmost DigitTime Limit: 2000/1000 MS (Java/Others) Memory Limit: 65536/32768 K (Java/Others)Total Submission(s): 23184 Accepted Submission(s): 8836Problem DescriptionGiven a positive integer原创 2013-08-16 09:04:42 · 579 阅读 · 0 评论 -
Fibonacci Again(HDU1021)
Fibonacci AgainTime Limit: 2000/1000 MS (Java/Others) Memory Limit: 65536/32768 K (Java/Others)Total Submission(s): 25104 Accepted Submission(s): 12153Problem DescriptionThere are another kind o原创 2013-08-16 09:04:38 · 474 阅读 · 0 评论 -
Encoding(HDU1020)
EncodingTime Limit: 2000/1000 MS (Java/Others) Memory Limit: 65536/32768 K (Java/Others)Total Submission(s): 18463 Accepted Submission(s): 7947Problem DescriptionGiven a string containing only '原创 2013-08-16 09:04:36 · 551 阅读 · 0 评论 -
Let the Balloon Rise（HDU1004）
Let the Balloon RiseTime Limit: 2000/1000 MS (Java/Others) Memory Limit: 65536/32768 K (Java/Others)Total Submission(s): 48681 Accepted Submission(s): 17381Problem DescriptionContest time again!原创 2013-08-16 09:04:31 · 464 阅读 · 0 评论 -
A hard puzzle(HDU1097)
A hard puzzleTime Limit: 2000/1000 MS (Java/Others) Memory Limit: 65536/32768 K (Java/Others)Total Submission(s): 22701 Accepted Submission(s): 7957Problem Descriptionlcy gives a hard puzzle to原创 2013-08-16 09:04:49 · 516 阅读 · 0 评论 -
Max Sum
Max SumTime Limit : 3000/1000ms (Java/Other) Memory Limit : 65535/32768K (Java/Other)Total Submission(s) : 6 Accepted Submission(s) : 4Font: Times New Roman | Verdana | GeorgiaFont Size: ←原创 2014-01-17 13:45:51 · 724 阅读 · 0 评论 -
Segment
SegmentTime Limit : 3000/1000ms (Java/Other) Memory Limit : 65535/32768K (Java/Other)Total Submission(s) : 5 Accepted Submission(s) : 2Font: Times New Roman | Verdana | GeorgiaFont Size: ←原创 2014-01-17 14:44:09 · 1026 阅读 · 0 评论