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Commit 381b4c8

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Update 01.State-DP.md
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‎Contents/10.Dynamic-Programming/07.State-DP/01.State-DP.md

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- 在集合 $A$ 中删除第 $i$ 位元素(将二进制数第 $i$ 位赋值为 0ドル$):`A = A & ~(1 << i)`
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- 判断集合 $A$ 是否选取了第 $i$ 位元素(判断二进制数第 $i$ 位是否为 1ドル$) :`if A & (1 << i):` 或者 `if (A >> i) & 1:`
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- 将集合 $A$ 设置为空集:`A = 0`
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- 将集合 $A$ 设置为全集:`A = 1 << n`
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- 将集合 $A$ 设置为全集:`A = 1 << n - 1`
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- 求集合 $A$ 的补集:`A = A ^ ((1 << n) - 1)`
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- 求集合 $A$ 与集合 $B$ 的并集:`A | B`
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- 求集合 $A$ 与集合 $B$ 的交集:`A & B`

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