A Active-matrix主动矩阵 Adapter cards适配卡 Advanced application高级应用 Analytical graph分析图表 Analyze分析 Animations动画 Application software 应用软件 Arithmetic operati ...
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其他好文 时间:
2018-02-06 21:33:08
阅读次数:
202
Any case of shuffling of n cards can be described with a permutation of 1 to n. Thus there are totally n! cases of shuffling. Now suppose there are 5 ...
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其他好文 时间:
2018-02-06 21:32:50
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216
A Active-matrix主动矩阵 Adapter cards适配卡 Advanced application高级应用 Analytical graph分析图表 Analyze分析 Animations动画 Application software 应用软件 Arithmetic operati ...
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其他好文 时间:
2018-02-06 21:30:30
阅读次数:
201
You have 4 cards each containing a number from 1 to 9. You need to judge whether they could operated through *, /, +, -, (, )to get the value of 24. E ...
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其他好文 时间:
2018-02-01 00:08:35
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184
Your friend has n cards. You know that each card has a lowercase English letter on one side and a digit on the other. Currently, your friend has laid ...
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其他好文 时间:
2018-01-27 00:37:19
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186
Description Alice and Bob have a set of N cards labelled with numbers 1 ... N (so that no two cards have the same label) and a shuffle machine. We ass ...
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其他好文 时间:
2018-01-24 22:08:42
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187
1004: [HNOI2008]Cards Description 小春现在很清闲,面对书桌上的N张牌,他决定给每张染色,目前小春只有3种颜色:红色,蓝色,绿色.他询问Sun有 多少种染色方案,Sun很快就给出了答案.进一步,小春要求染出Sr张红色,Sb张蓝色,Sg张绝色.他又询问有多少种方 案,S ...
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其他好文 时间:
2018-01-19 23:21:46
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192
1042. Shuffling Machine (20) Shuffling is a procedure used to randomize a deck of playing cards. Because standard shuffling techniques are seen as wea ...
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系统相关 时间:
2018-01-17 22:29:35
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289
题目描述 用三种颜色染一个长度为 $n=Sr+Sb+Sg$ 序列,要求三种颜色分别有 $Sr,Sb,Sg$ 个。给出 $m$ 个置换,保证这 $m$ 个置换和置换 ${1,2,3,...,n\choose 1,2,3,...,n}$ 构成一个置换群,求置换后不同构的序列个数模 $p$ 。 $0\le ...
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其他好文 时间:
2018-01-17 01:25:12
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155