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Problem Description Ali has taken the Computer Organization and Architecture course this term. He learned that there may be dep... 阅读全文
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Problem Description Like everyone else, cows like to stand close to their friends when queuing for feed. FJ has N (2 =0,此外,根据 M... 阅读全文
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Problem Description Once, in one kingdom, there was a queen and that queen was expecting a baby. The queen prayed: ``If my chil... 阅读全文
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2-SAT 结束了,这两天看了看差分约束系统,原理不难,关键是建图 这两天把差分约束系统的题做一做,下周开始网络流的内容 ... 阅读全文
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Problem Description During the kindergarten days, flymouse was the monitor of his class. Occasionally the head-teacher brought ... 阅读全文
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【概述】 如果一个系统由 n 个变量 m 个约束条件组成,形成 m 个形如 的不等式,其中 ,k 是常数,则称这 m 个不等式为差分约束系统(system of difference constraints),亦即,差分约束系统是求解关于一组变量的特殊不等式... 阅读全文
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Problem Description Here is a procedure's pseudocode: go(int dep, int n, int m) begin output the value of dep. if dep #include... 阅读全文
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Problem Description Farmer John's farm has N barns, and there are some cows that live in each barn. The cows like to drop aroun... 阅读全文
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前几天准备 4 级一直没怎么看,考完了又去新生赛帮忙,2-SAT 基本弄完了,但跟二分结合的题还没刷,周三前刷出来。 ... 阅读全文
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Problem Description John is the only priest in his town. September 1st is the John's busiest day in a year because there is an ... 阅读全文