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Piggy-BankTime Limit: 2000/1000 MS (Java/Others)Memory Limit: 65536/32768 K (Java/Others)Total Submission(s): 9921Accepted Submission(s): 4997Problem DescriptionBefore ACM can do anything, a budget must be prepared and the necessary financial support obtained. The main income for this action comes f 阅读全文
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Bone CollectorTime Limit: 2000/1000 MS (Java/Others)Memory Limit: 32768/32768 K (Java/Others)Total Submission(s): 25042Accepted Submission(s): 10147Problem DescriptionMany years ago , in Teddy’s hometown there was a man who was called “Bone Collector”. This man like to collect varies of bones , such 阅读全文
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Prime Ring ProblemTime Limit: 4000/2000 MS (Java/Others)Memory Limit: 65536/32768 K (Java/Others)Total Submission(s): 23268Accepted Submission(s): 10363Problem DescriptionA ring is compose of n circles as shown in diagram. Put natural number 1, 2, ..., n into each circle separately, and the sum of n 阅读全文
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黄金分割数0.618与美学有重要的关系。舞台上报幕员所站的位置大约就是舞台宽度的0.618处，墙上的画像一般也挂在房间高度的0.618处，甚至股票的波动据说也能找到0.618的影子....黄金分割数是个无理数，也就是无法表示为两个整数的比值。0.618只是它的近似值，其真值可以通过对5开方减去1再除以2来获得，我们取它的一个较精确的近似值：0.618034有趣的是，一些简单的数列中也会包含这个无理数，这很令数学家震惊！134711182947....称为“鲁卡斯队列”。它后面的每一个项都是前边两项的和。如果观察前后两项的比值，即：1/3,3/4,4/7,7/11,11/18...会发现它越来越 阅读全文