3NF 分解过程 (伪代码)let Fc be the canonical cover(最小函数依赖集) for F, i = 0 for each FD α → β Fc do if (none of Rj , j = 1, 2, . . . , i contains αβ) then i++Ri =...
An Easy Physics Problem Time Limit: 2000/1000 MS (Java/Others) Memory Limit: 65536/65536 K (Java/Others) Total Submission(s): 3840 Accepted Submission(s...
题目描述:There are 1000 buckets, one and only one of them contains poison, the rest are filled with water. They all look the same. If a pig drinks that poison it w...
A. Lucky Yeartime limit per test:1 secondmemory limit per test:256 megabytesinput:standard inputoutput:standard outputApart from having lots of holidays th...
B. Interesting drinktime limit per test:2 secondsmemory limit per test:256 megabytesinput:standard inputoutput:standard outputVasiliy likes to rest after a...