It's easy to create duplicates without realizing it. (I've modified the Sleak tool to find duplicates and am contributing this and other useful Sleak changes back to Eclipse.)
很容易创建副本，而且您可以都没有意识到(我曾修改了Sleak工具使之发现副本，并将此改变以及其他有用的改变添加到Eclipse中。)
Exactly. Mathematicians write 365 30. And what is the number of possible sets of 30 birthdays without any duplicates?
很好，数学家会将其写做365 30。那么30个不重复的生日组合会是多少？
How to populate array from. TXT file without put any duplicates in the array?
如何填充阵列。txt文件没有提出任何重复的数组？
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