# Coin selection algorithm

## Algorithm overview

The arhitecture of coin selection is designed to allow adjust coin selection based on the coins selected before (for
example: the coin selector gives us a selection of UTxO, then we can adjust the fee based on the selected UTxO and
trigger coin selection again).

- We start coin selection with the biggest UTxO, then, if the change would produce a smaller UTxO than the smallest
  existing UTxO, we add the smalles UTxO to the selection.
- To optimize multiasset selection, we try to remove UTxOs from selection until no removal is possible.

Note that the algorithm ensures the smallest UTxO after transaction will be bigger (or at least equal) than the smallest
UTxO before.

## Implementation:

[builder/CoinSelector.ts](./builder/CoinSelector.ts)

## Test:

[builder/CoinSelector.test.ts](./builder/CoinSelector.test.ts)


@emurgo/dullahan

stackchain

vsubhuman

abdelkrimdev

lisicky_emurgo

twwu123

cryptotitan

jarstorm

dullahan

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@emurgo/dullahan

Coin selection algorithm

Algorithm overview

Implementation:

Test:

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