use variables indtead of array to save gas

[code423n4]

Handle

CertoraInc

Vulnerability details

UniswapHelper.sol (_ensurePriceStability() function)

you save the storage array localFlanQuotes to a local (memory) array, but it is more efficient to save it's 2 elements to 2 local variables (this saves the calculating of the address by the index of the array's element and saves some gas)

code before:

FlanQuote[2] memory localFlanQuotes; //save gas
localFlanQuotes[0] = latestFlanQuotes[0];
localFlanQuotes[1] = latestFlanQuotes[1];

code after:

FlanQuote memory localFlanQuotes0, localFlanQuotes1;
localFlanQuotes0 = latestFlanQuotes[0];
localFlanQuotes1 = latestFlanQuotes[1];