Platform: Code4rena
Start Date: 20/09/2022
Pot Size: $30,000 USDC
Total HM: 12
Participants: 198
Period: 3 days
Judge: 0xean
Total Solo HM: 2
Id: 164
League: ETH
Rank: 166/198
Findings: 1
Award: $9.09
🌟 Selected for report: 0
🚀 Solo Findings: 0
🌟 Selected for report: IllIllI
Also found by: 0v3rf10w, 0x040, 0x1f8b, 0x4non, 0x85102, 0xA5DF, 0xDanielC, 0xNazgul, 0xSmartContract, 0xbepresent, 0xc0ffEE, 0xsam, 2997ms, AkshaySrivastav, Amithuddar, Atarpara, Aymen0909, B2, Bnke0x0, CertoraInc, Chom, ChristianKuri, CodingNameKiki, Deivitto, Diana, DimitarDimitrov, Diraco, Funen, JC, JLevick, JohnSmith, Junnon, KIntern_NA, Lambda, MasterCookie, Matin, Noah3o6, Ocean_Sky, OptimismSec, RaymondFam, Respx, ReyAdmirado, RockingMiles, Rohan16, Rolezn, Ruhum, Saintcode_, Satyam_Sharma, Sm4rty, SnowMan, SooYa, Sta1400, StevenL, Tadashi, Tagir2003, TomJ, Tomio, Tomo, V_B, Waze, WilliamAmbrozic, Yiko, __141345__, a12jmx, adriro, ajtra, ak1, async, aysha, beardofginger, bobirichman, brgltd, bulej93, c3phas, carrotsmuggler, caventa, ch0bu, cryptostellar5, cryptphi, csanuragjain, d3e4, delfin454000, dharma09, djxploit, durianSausage, eighty, emrekocak, erictee, exd0tpy, fatherOfBlocks, francoHacker, gianganhnguyen, gogo, got_targ, hxzy, ignacio, ikbkln, imare, indijanc, jag, jpserrat, karanctf, ladboy233, leosathya, lucacez, lukris02, m9800, malinariy, martin, medikko, mics, millersplanet, mrpathfindr, nalus, natzuu, neko_nyaa, oyc_109, pauliax, peanuts, pedroais, peiw, pfapostol, prasantgupta52, rbserver, ret2basic, rokinot, rotcivegaf, rvierdiiev, sach1r0, samruna, seyni, slowmoses, subtle77, supernova, tgolding55, tibthecat, tnevler, w0Lfrum, yaemsobak, zishansami
9.086 USDC - $9.09
-> X = X + Y IS CHEAPER THAN X += Y (same for X = X - Y IS CHEAPER THAN X -= Y)
https://github.com/code-423n4/2022-09-vtvl/blob/main/contracts/token/VariableSupplyERC20Token.sol#:~:text=mintableSupply%20%2D%3D%20amount%3B https://github.com/code-423n4/2022-09-vtvl/blob/main/contracts/VTVLVesting.sol#:~:text=vestAmt%20%2B%3D%20_claim.cliffAmount%3B https://github.com/code-423n4/2022-09-vtvl/blob/main/contracts/VTVLVesting.sol#:~:text=vestAmt%20%2B%3D%20linearVestAmount%3B https://github.com/code-423n4/2022-09-vtvl/blob/main/contracts/VTVLVesting.sol#:~:text=numTokensReservedForVesting%20%2B%3D%20allocatedAmount%3B https://github.com/code-423n4/2022-09-vtvl/blob/main/contracts/VTVLVesting.sol#:~:text=usrClaim.amountWithdrawn%20%2B%3D%20amountRemaining%3B https://github.com/code-423n4/2022-09-vtvl/blob/main/contracts/VTVLVesting.sol#:~:text=debt%22%20gets%20reduced-,numTokensReservedForVesting%20%2D%3D%20amountRemaining%3B,-//%20After%20the%20%22books
->SPLITTING REQUIRE() STATEMENTS THAT USE && SAVES GAS
https://github.com/code-423n4/2022-09-vtvl/blob/main/contracts/VTVLVesting.sol#:~:text=at%20the%20_startTimestamp-,require(,)%2C%20%22INVALID_CLIFF%22)%3B,-Claim%20memory%20_claim https://github.com/code-423n4/2022-09-vtvl/blob/main/contracts/VTVLVesting.sol#:~:text=require(_startTimestamps.,)%3B
-> ++i costs less gas compared to i++ or i += 1 (Also --i costs less gas compared to i--- or i -= 1)
->USING BOOLS FOR STORAGE INCURS OVERHEAD