sortArray optimizable

[code423n4]

Handle

gpersoon

Vulnerability details

Impact

The function sortArray is only called by getAnchorPrice() in Router.sol
Then it is only used to get the second element of the sorted array.
With this knowledge it is possible to write a function that is more efficient.
Sort functions are relative expensive functions.

Proof of Concept

Router.sol:
function getAnchorPrice() public view returns (uint anchorPrice) {
....
uint[] memory _sortedAnchorFeed = iUTILS(UTILS()).sortArray(arrayPrices);
anchorPrice = _sortedAnchorFeed[2];

Tools Used

Recommended Mitigation Steps

Make a partial sort function that only returns the required value

[strictly-scarce]

Do you have an example of how to make it better? It's already pretty good for what it does