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Alchemix contest - UnusualTurtle's results

A protocol for self-repaying loans with no liquidation risk.

General Information

Platform: Code4rena

Start Date: 05/05/2022

Pot Size: $125,000 DAI

Total HM: 17

Participants: 62

Period: 14 days

Judge: leastwood

Total Solo HM: 15

Id: 120

League: ETH

Findings Distribution

Researcher Performance

Rank: 59/62

Findings: 1

Award: $89.21

🌟 Selected for report: 0

🚀 Solo Findings: 0

External Links

Code4rena Contest Page Github Contest Repository Github Findings Repository Alchemix

Findings Information

🌟 Selected for report: IllIllI

Also found by: 0v3rf10w, 0x1f8b, 0x4non, 0xDjango, 0xNazgul, 0xf15ers, 0xkatana, 0xsomeone, AlleyCat, BowTiedWardens, Cityscape, Fitraldys, Funen, GimelSec, Hawkeye, JC, MaratCerby, MiloTruck, Randyyy, TerrierLover, Tomio, UnusualTurtle, WatchPug, Waze, _Adam, augustg, bobirichman, catchup, csanuragjain, ellahi, fatherOfBlocks, hake, hansfriese, horsefacts, ignacio, joestakey, kenta, mics, oyc_109, robee, samruna, sashik_eth, sikorico, simon135, throttle

Awards

89.2136 DAI - $89.21

Labels

bug

G (Gas Optimization)

External Links

Link to GitHub issue

Use != 0 instead of > 0

POC

https://github.com/code-423n4/2022-05-alchemix/blob/71abbe683dfd5c0686b7e594fb4f78a14b668d8b/contracts-full/AlchemistV2.sol#L707

https://github.com/code-423n4/2022-05-alchemix/blob/71abbe683dfd5c0686b7e594fb4f78a14b668d8b/contracts-full/AlchemistV2.sol#L810

impact

Using != 0 is slightly cheaper than > 0.

use ++i instead of i++

POC

https://github.com/code-423n4/2022-05-alchemix/blob/71abbe683dfd5c0686b7e594fb4f78a14b668d8b/contracts-hardhat/AlchemistV2.sol#L1355

https://github.com/code-423n4/2022-05-alchemix/blob/71abbe683dfd5c0686b7e594fb4f78a14b668d8b/contracts-full/ThreePoolAssetManager.sol#L353

impact

Gas: ++i costs less gas compared to i++

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