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cf 305A
E -Strange AdditionTime Limit:2000MSMemory Limit:262144KB64bit IO Format:%I64d & %I64uSubmitStatusPracticeCodeForces 305AAppoint description:Descripti...
分类:其他好文   时间:2015-01-12 11:34:03    阅读次数:176
cf 305B
F -Continued FractionsTime Limit:2000MSMemory Limit:262144KB64bit IO Format:%I64d & %I64uSubmitStatusPracticeCodeForces 305BAppoint description:Descri...
分类:其他好文   时间:2015-01-12 11:32:27    阅读次数:201
cf 500B
B -New Year PermutationTime Limit:2000MSMemory Limit:262144KB64bit IO Format:%I64d & %I64uSubmitStatusPracticeCodeForces 500BAppoint description:Descr...
分类:其他好文   时间:2015-01-12 09:14:46    阅读次数:142
cf 12B
B -Correct Solution?Time Limit:2000MSMemory Limit:262144KB64bit IO Format:%I64d & %I64uSubmitStatusPracticeCodeForces 12BAppoint description:Descripti...
分类:其他好文   时间:2015-01-10 21:04:23    阅读次数:190
cf 47B
G -CoinsTime Limit:2000MSMemory Limit:262144KB64bit IO Format:%I64d & %I64uSubmitStatusPracticeCodeForces 47BAppoint description:DescriptionOne day Va...
分类:其他好文   时间:2015-01-10 21:00:54    阅读次数:220
cf 12A
A -Super AgentTime Limit:2000MSMemory Limit:262144KB64bit IO Format:%I64d & %I64uSubmitStatusPracticeCodeForces 12AAppoint description:DescriptionTher...
分类:其他好文   时间:2015-01-10 20:58:22    阅读次数:195
cf 47A
F -Triangular numbersTime Limit:2000MSMemory Limit:262144KB64bit IO Format:%I64d & %I64uSubmitStatusPracticeCodeForces 47AAppoint description:Descript...
分类:其他好文   时间:2015-01-10 20:56:57    阅读次数:159
CF 19C 思维题STL应用
http://codeforces.com/problemset/problem/19/C Once Bob saw a string. It contained so many different letters, that the letters were marked by numbers, but at the same time each letter ...
分类:其他好文   时间:2015-01-07 23:36:29    阅读次数:221
BZOJ 3850: ZCC Loves Codefires【贪心】
Though ZCC has many Fans, ZCC himself is a crazy Fan of a coder, called "Memset137".It was on Codefires(CF), an online competitive programming site, t...
分类:其他好文   时间:2015-01-07 16:35:55    阅读次数:269
[Everyday Mathematics]20150117
设 $f:\bbR^{n\times n}\to\bbR$ 适合 $$\bex f(cA+B)=cf(A)+f(B),\quad f(AB)=f(BA),\quad\forall\ c\in\bbR,\ A,B\in \bbR^{n\times n}. \eex$$
分类:其他好文   时间:2015-01-07 09:17:50    阅读次数:118
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