1293: [SCOI2009]生日礼物Time Limit:10 SecMemory Limit:162 MBSubmit:983Solved:526[Submit][Status]Description小西有一条很长的彩带，彩带上挂着各式各样的彩珠。已知彩珠有N个，分为K种。简单的说，可以将彩带... Read More
posted @ 2014-08-23 09:14
ZYF-ZYF
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2326: [HNOI2011]数学作业Time Limit:10 SecMemory Limit:128 MBSubmit:955Solved:535[Submit][Status]Description题解：第一次知道矩阵乘法还能这样用，真是太神了！我想到了递推式：f[i]=(f[i-1]*10... Read More
posted @ 2014-08-22 22:51
ZYF-ZYF
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1179: [Apio2009]AtmTime Limit:15 SecMemory Limit:162 MBSubmit:1427Solved:544[Submit][Status]DescriptionInput第一行包含两个整数N、M。N表示路口的个数，M表示道路条数。接下来M行，每行两个整数... Read More
posted @ 2014-08-22 20:48
ZYF-ZYF
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做树链剖分最头疼的就是LCA的特殊性，有必要自己证明一下，否则用着不踏实，以求x到y的sum为例，z=lca(x,y)procedure solvesum; begin ans:=0; while ch' ' do read(ch); readln(x,y); while top... Read More
posted @ 2014-08-22 09:25
ZYF-ZYF
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1146: [CTSC2008]网络管理NetworkTime Limit:50 SecMemory Limit:162 MBSubmit:1724Solved:524[Submit][Status]DescriptionM公司是一个非常庞大的跨国公司，在许多国家都设有它的下属分支机构或部门。为了让... Read More
posted @ 2014-08-22 09:01
ZYF-ZYF
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1984: 月下“毛景树”Time Limit:20 SecMemory Limit:64 MBSubmit:713Solved:245[Submit][Status]Description毛毛虫经过及时的变形，最终逃过的一劫，离开了菜妈的菜园。 毛毛虫经过千山万水，历尽千辛万苦，最后来到了小小的绍... Read More
posted @ 2014-08-22 00:03
ZYF-ZYF
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题目就不抄了，终于用c++A了这道题有几点需要注意的1.k 2 #include 3 #include 4 #include 5 #include 6 #include 7 #include 8 #include 9 #include 10 #include 11 #define i... Read More
posted @ 2014-08-21 17:11
ZYF-ZYF
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1579: [Usaco2009 Feb]Revamping Trails 道路升级Time Limit:10 SecMemory Limit:64 MBSubmit:1251Solved:337[Submit][Status]Description每天,农夫John需要经过一些道路去检查牛棚N里面... Read More
posted @ 2014-08-21 17:02
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1674: [Usaco2005]Part AcquisitionTime Limit:5 SecMemory Limit:64 MBSubmit:259Solved:114[Submit][Status]DescriptionThe cows have been sent on a mission... Read More
posted @ 2014-08-21 17:00
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1631: [Usaco2007 Feb]Cow PartyTime Limit:5 SecMemory Limit:64 MBSubmit:459Solved:338[Submit][Status]Description农场有N(1≤N≤1000)个牛棚，每个牛棚都有1只奶牛要参加在X牛棚举行的奶... Read More
posted @ 2014-08-21 12:48
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