Summary

There is no need to initialize variables to their default values

Vulnerability Details

DSCEngine.sol lines 118, 353 initialise uint256 i=0 when i will be default value 0 at the start of each loop iteration

Impact

Gas Savings: Not much but this initialization adds more operations that are unnecessary increasing costs

Tools Used

Manual Analysis

Recommendations

DSCEngine.sol line 118 change to for (uint256 i; ....etc ) {
DSCEngine.sol line 353 change to for (uint256 i; ....etc) {