Struct MinCostFlow

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pub struct MinCostFlow { /* private fields */ }
Expand description

最小費用流

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impl MinCostFlow

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pub fn new(size: usize) -> Self

頂点数sizeの空のMinCostFlowを返す。

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pub fn add_edge(&mut self, u: usize, v: usize, cap: u64, cost: i64)

頂点uから頂点vに容量cap・費用costの辺を張る。

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pub fn min_cost_flow( &mut self, src: usize, sink: usize, f: u64, ) -> Result<i64, (u64, i64)>

始点srcから終点sinkへ流量fを流して、その最小費用を求める。

流量fを流しきれるとき、Okに最小費用を包んで返す。 そうでないとき、Errに流せた流量とその最小費用のペアを包んで返す。

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pub fn get_edges(&self, i: usize) -> Vec<(usize, u64, i64)>

頂点iに接続する辺を、(終点, 流量, 費用)の形で返す。

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impl Clone for MinCostFlow

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fn clone(&self) -> MinCostFlow

Returns a copy of the value. Read more
1.0.0 · Source§

fn clone_from(&mut self, source: &Self)

Performs copy-assignment from source. Read more

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impl<T> Any for T
where T: 'static + ?Sized,

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where T: ?Sized,

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fn borrow_mut(&mut self) -> &mut T

Mutably borrows from an owned value. Read more
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impl<T> CloneToUninit for T
where T: Clone,

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unsafe fn clone_to_uninit(&self, dest: *mut u8)

🔬This is a nightly-only experimental API. (clone_to_uninit)
Performs copy-assignment from self to dest. Read more
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impl<T> From<T> for T

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fn from(t: T) -> T

Returns the argument unchanged.

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impl<T, U> Into<U> for T
where U: From<T>,

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fn into(self) -> U

Calls U::from(self).

That is, this conversion is whatever the implementation of From<T> for U chooses to do.

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where T: Clone,

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type Owned = T

The resulting type after obtaining ownership.
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fn to_owned(&self) -> T

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type Error = Infallible

The type returned in the event of a conversion error.
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fn try_from(value: U) -> Result<T, <T as TryFrom<U>>::Error>

Performs the conversion.
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impl<T, U> TryInto<U> for T
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type Error = <U as TryFrom<T>>::Error

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Performs the conversion.