1249. Ancient NecropolisTime limit: 5.0 secondMemory limit: 4 MBAerophotography data provide a bitmap picture of a hard-to-reach region. According to ...
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其他好文 时间:
2015-12-26 11:28:01
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172
1143. Electric PathTime limit: 1.0 secondMemory limit: 64 MBBackgroundAt the team competition of the 10th national student informatics Olympic, which ...
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2015-12-26 10:05:05
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199
1073. Square CountryTime limit: 1.0 secondMemory limit: 64 MBThere live square people in a square country. Everything in this country is square also. ...
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其他好文 时间:
2015-12-25 21:02:15
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223
1075. Thread in a SpaceTime limit: 1.0 secondMemory limit: 64 MBThere are three points in a 3-dimensional space:A,BandC. All the coordinates of the po...
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其他好文 时间:
2015-12-25 20:59:35
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178
1071. Nikifor 2Time limit: 1.0 secondMemory limit: 64 MBNikifor has a numberx. He doesn't need it. He needs a numbery. Nikifor tries to obtain the req...
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其他好文 时间:
2015-12-25 20:54:59
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217
1070. Local TimeTime limit: 1.0 secondMemory limit: 64 MBSoon the USU team will go to Vancouver to participate in the final of the ACM International C...
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其他好文 时间:
2015-12-25 20:54:23
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229
1069. Prufer CodeTime limit: 0.25 secondMemory limit: 8 MBA tree (i.e. a connected graph without cycles) with vertices is given (N≥2). Vertices of the...
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其他好文 时间:
2015-12-25 20:48:43
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189
1072. RoutingTime limit: 1.0 secondMemory limit: 64 MBThere is a TCP/IP net of several computers. It means that:Each computer has one or more net inte...
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其他好文 时间:
2015-12-25 20:46:36
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218
Sorting the TombstonesTime Limit:1000MSMemory Limit:65536KB64bit IO Format:%I64d & %I64uSubmitStatusPracticeURAL 1252DescriptionThere is time to throw...
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其他好文 时间:
2015-12-18 18:01:08
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247
题意:长度小于100的字符串s只由四种字符"()[]"组成,求以该串为子串的最短的合法串。合法串递归定义为:(1)空串合法(2)如果S合法,则(S)、[S]合法(3)如果A、B合法,则AB合法思路:设dp[i][j]为s(i,j)变为合法串后,合法串的长度或需要添加的字符的个数,状态转移:(1)如果...
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其他好文 时间:
2015-12-14 06:49:00
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247