问题重述： 2520 is the smallest number that can be divided by each of the numbers from 1 to 10 without any remainder. What is the smallest positive num...
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其他好文 时间：
2014-10-19 16:59:06
阅读次数：
232
ConstraintsTime Limit: 1 secs, Memory Limit: 32 MBDescriptionGive two positive integers a and b, please help us calculate a*b.InputThe first line of t...
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其他好文 时间：
2014-10-16 14:06:42
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135
Happy 2004Time Limit: 2000/1000 MS (Java/Others)Memory Limit: 65536/32768 K (Java/Others)Problem DescriptionConsider a positive integer X,and let S be...
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移动开发 时间：
2014-10-12 21:42:08
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257
Problem Description
The digital root of a positive integer is found by summing the digits of the integer. If the resulting value is a single digit then that digit is the digital root. If the resultin...
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其他好文 时间：
2014-10-12 19:46:59
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205
原文链接正定矩阵是自共轭矩阵的一种。正定矩阵类似复数中的正实数。定义：对于对称矩阵M，当且仅当存在任意向量x，都有若上式大于等于零，则称M为半正定矩阵。正定矩阵记为M>0。也被称为正定二次型正定矩阵的判定1、所有特征值为正数（根据谱定理，若条件成立，必然可以找到对角矩阵的D和正定矩阵P，使M=P^-...
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其他好文 时间：
2014-10-12 19:15:58
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168
题目链接 请猛戳~ Description Given a n × n matrix A and a positive integer k, find the sum S = A + A2 + A3 + … + Ak. Input The input contains exactly one tes...
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其他好文 时间：
2014-10-12 16:44:58
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199
Problem DescriptionGiven a positive integer N, your task is to calculate the sum of the positive integers less than N which are not coprime to N. A .....
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其他好文 时间：
2014-10-11 16:30:15
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172
Find The Multiple
Time Limit: 1000MS
Memory Limit: 10000K
Total Submissions: 18390
Accepted: 7445
Special Judge
Description
Given a positive integer n, write a ...
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其他好文 时间：
2014-10-05 01:33:27
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327
DescriptionIn the two-player game "Two Ends", an even number of cards is laid out in a row. On each card, face up, is written a positive integer. Play...
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其他好文 时间：
2014-09-27 00:10:38
阅读次数：
444
Let us consider sets of positive integers less than or equal to n. Note that all elements of a set are
different. Also note that the order of elements doesnt matter, that is, both {3, 5, 9} and {5, 9...
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其他好文 时间：
2014-09-26 02:35:48
阅读次数：
191
