CNOlympics Token Logo

NO.1 [CNOlympics] Token

About NO.1

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Token 2 years

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CN Olympics 2022 on BSC!

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Laser Scorebeta Last Audit: 5 February 2022

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Token seems to be anonymous. As long as we are unable to find website score is limited.


Unable to find manual contract audit (e.g. Certik, PeckShield, Solidity...)

CNOlympics.swapBack() (CNOlympics.sol#305-374) sends eth to arbitrary user
Dangerous calls:
- (success) = address(marketingFeeReceiver).call{gas: 30000,value: amountETHMarketing}() (CNOlympics.sol#349-352)
- (success,None) = address(buyBackFeeReceiver).call{gas: 30000,value: amountETHBuyBack}() (CNOlympics.sol#353-356)
- (success,None) = address(ecosystemFeeReceiver).call{gas: 30000,value: amountETHEco}() (CNOlympics.sol#357-360)
Ensure that an arbitrary user cannot withdraw unauthorized funds.

Additional information: link

Reentrancy in CNOlympics._transferFrom(address,address,uint256) (CNOlympics.sol#220-269):
External calls:
- swapBack() (CNOlympics.sol#251)
- router.swapExactTokensForETHSupportingFeeOnTransferTokens(amountToSwap,0,path,address(this),block.timestamp) (CNOlympics.sol#327-333)
- (success) = address(marketingFeeReceiver).call{gas: 30000,value: amountETHMarketing}() (CNOlympics.sol#349-352)
- (success,None) = address(buyBackFeeReceiver).call{gas: 30000,value: amountETHBuyBack}() (CNOlympics.sol#353-356)
- (success,None) = address(ecosystemFeeReceiver).call{gas: 30000,value: amountETHEco}() (CNOlympics.sol#357-360)
- router.addLiquidityETH{value: amountETHLiquidity}(address(this),amountToLiquify,0,0,autoLiquidityReceiver,block.timestamp) (CNOlympics.sol#365-372)
External calls sending eth:
- swapBack() (CNOlympics.sol#251)
- (success) = address(marketingFeeReceiver).call{gas: 30000,value: amountETHMarketing}() (CNOlympics.sol#349-352)
- (success,None) = address(buyBackFeeReceiver).call{gas: 30000,value: amountETHBuyBack}() (CNOlympics.sol#353-356)
- (success,None) = address(ecosystemFeeReceiver).call{gas: 30000,value: amountETHEco}() (CNOlympics.sol#357-360)
- router.addLiquidityETH{value: amountETHLiquidity}(address(this),amountToLiquify,0,0,autoLiquidityReceiver,block.timestamp) (CNOlympics.sol#365-372)
State variables written after the call(s):
- _gonBalances[sender] = _gonBalances[sender].sub(gonAmount) (CNOlympics.sol#254)
- _gonBalances[recipient] = _gonBalances[recipient].add(gonAmountReceived) (CNOlympics.sol#259-261)
- gonAmountReceived = takeFee(sender,gonAmount,isSell) (CNOlympics.sol#256-258)
- _gonBalances[address(this)] = _gonBalances[address(this)].add(feeAmount) (CNOlympics.sol#297-299)
Apply the check-effects-interactions pattern.

Additional information: link

CNOlympics.swapBack().success (CNOlympics.sol#349) is written in both
(success) = address(marketingFeeReceiver).call{gas: 30000,value: amountETHMarketing}() (CNOlympics.sol#349-352)
(success,None) = address(buyBackFeeReceiver).call{gas: 30000,value: amountETHBuyBack}() (CNOlympics.sol#353-356)
CNOlympics.swapBack().success (CNOlympics.sol#349) is written in both
(success,None) = address(buyBackFeeReceiver).call{gas: 30000,value: amountETHBuyBack}() (CNOlympics.sol#353-356)
(success,None) = address(ecosystemFeeReceiver).call{gas: 30000,value: amountETHEco}() (CNOlympics.sol#357-360)
CNOlympics.swapBack().success (CNOlympics.sol#349) is written in both
(success,None) = address(ecosystemFeeReceiver).call{gas: 30000,value: amountETHEco}() (CNOlympics.sol#357-360)
success = false (CNOlympics.sol#362)
Fix or remove the writes.

Additional information: link


Combination 1: Reentrancy vulnerabilities + Functions that send Ether to arbitraty destination. Usual for scams. May be justified by some complex mechanics (e.g. rebase, reflections). DYOR & manual audit are advised.

Contract ticker (NO.1) contains non-alphanumeric characters.
Not a direct threat, but may indicate unreliable intentions of developer. Non-alphanumeric chars (,.;!#*&") are extremely rare among low risk tokens.

CNOlympics.swapBack() (CNOlympics.sol#305-374) performs a multiplication on the result of a division:
-contractTokenBalance = _gonBalances[address(this)].div(_gonsPerFragment) (CNOlympics.sol#312-314)
-amountToLiquify = contractTokenBalance.mul(dynamicLiquidityFee).div(totalFee).div(2) (CNOlympics.sol#315-318)
CNOlympics.setMaxWalletToken(uint256,uint256) (CNOlympics.sol#449-454) performs a multiplication on the result of a division:
-gonMaxWallet = TOTAL_GONS.div(_denom).mul(_num) (CNOlympics.sol#453)
CNOlympics.setSwapBackSettings(bool,uint256,uint256) (CNOlympics.sol#472-479) performs a multiplication on the result of a division:
-gonSwapThreshold = TOTAL_GONS.div(_denom).mul(_num) (CNOlympics.sol#478)
CNOlympics.getLiquidityBacking(uint256) (CNOlympics.sol#563-571) performs a multiplication on the result of a division:
-liquidityBalance = _gonBalances[pair].div(_gonsPerFragment) (CNOlympics.sol#568)
-accuracy.mul(liquidityBalance.mul(2)).div(getCirculatingSupply()) (CNOlympics.sol#569-570)
CNOlympics.slitherConstructorVariables() (CNOlympics.sol#18-583) performs a multiplication on the result of a division:
-gonMaxWallet = TOTAL_GONS.div(100).mul(2) (CNOlympics.sol#55)
Consider ordering multiplication before division.

Additional information: link

CNOlympics.swapBack() (CNOlympics.sol#305-374) ignores return value by router.addLiquidityETH{value: amountETHLiquidity}(address(this),amountToLiquify,0,0,autoLiquidityReceiver,block.timestamp) (CNOlympics.sol#365-372)
Ensure that all the return values of the function calls are used.

Additional information: link

CNOlympics.setMaster(address) (CNOlympics.sol#168-170) should emit an event for:
- master = _master (CNOlympics.sol#169)
Emit an event for critical parameter changes.

Additional information: link

CNOlympics.changeAntiDumpPercentage(uint256) (CNOlympics.sol#150-153) should emit an event for:
- antiDumpPercentage = percentage (CNOlympics.sol#152)
CNOlympics.changeAntiSniperPercentage(uint256) (CNOlympics.sol#155-158) should emit an event for:
- antiSniperPercentage = percentage (CNOlympics.sol#157)
CNOlympics.setMaxWalletToken(uint256,uint256) (CNOlympics.sol#449-454) should emit an event for:
- gonMaxWallet = TOTAL_GONS.div(_denom).mul(_num) (CNOlympics.sol#453)
CNOlympics.setSwapBackSettings(bool,uint256,uint256) (CNOlympics.sol#472-479) should emit an event for:
- gonSwapThreshold = TOTAL_GONS.div(_denom).mul(_num) (CNOlympics.sol#478)
CNOlympics.setTargetLiquidity(uint256,uint256) (CNOlympics.sol#481-484) should emit an event for:
- targetLiquidity = target (CNOlympics.sol#482)
- targetLiquidityDenominator = accuracy (CNOlympics.sol#483)
CNOlympics.setFees(uint256,uint256,uint256,uint256,uint256) (CNOlympics.sol#498-512) should emit an event for:
- ecosystemFee = _ecosystemFee (CNOlympics.sol#505)
- liquidityFee = _liquidityFee (CNOlympics.sol#506)
- buyBackFee = _buyBackFee (CNOlympics.sol#507)
- marketingFee = _marketingFee (CNOlympics.sol#508)
- totalFee = ecosystemFee.add(liquidityFee).add(marketingFee).add(buyBackFee) (CNOlympics.sol#509)
- feeDenominator = _feeDenominator (CNOlympics.sol#510)
Emit an event for critical parameter changes.

Additional information: link

CNOlympics.setMaster(address)._master (CNOlympics.sol#168) lacks a zero-check on :
- master = _master (CNOlympics.sol#169)
CNOlympics.setFeeReceivers(address,address,address,address)._autoLiquidityReceiver (CNOlympics.sol#515) lacks a zero-check on :
- autoLiquidityReceiver = _autoLiquidityReceiver (CNOlympics.sol#520)
CNOlympics.setFeeReceivers(address,address,address,address)._ecosystemFeeReceiver (CNOlympics.sol#516) lacks a zero-check on :
- ecosystemFeeReceiver = _ecosystemFeeReceiver (CNOlympics.sol#521)
CNOlympics.setFeeReceivers(address,address,address,address)._marketingFeeReceiver (CNOlympics.sol#517) lacks a zero-check on :
- marketingFeeReceiver = _marketingFeeReceiver (CNOlympics.sol#522)
CNOlympics.setFeeReceivers(address,address,address,address)._buyBackFeeReceiver (CNOlympics.sol#518) lacks a zero-check on :
- buyBackFeeReceiver = _buyBackFeeReceiver (CNOlympics.sol#523)
CNOlympics.clearStuckBalance(uint256,address).adr (CNOlympics.sol#534) lacks a zero-check on :
- address(adr).transfer((amountETH * amountPercentage) / 100) (CNOlympics.sol#536-538)
Check that the address is not zero.

Additional information: link

CNOlympics.swapBack() (CNOlympics.sol#305-374) has external calls inside a loop: path[1] = router.WETH() (CNOlympics.sol#323)
CNOlympics.swapBack() (CNOlympics.sol#305-374) has external calls inside a loop: router.swapExactTokensForETHSupportingFeeOnTransferTokens(amountToSwap,0,path,address(this),block.timestamp) (CNOlympics.sol#327-333)
CNOlympics.swapBack() (CNOlympics.sol#305-374) has external calls inside a loop: (success) = address(marketingFeeReceiver).call{gas: 30000,value: amountETHMarketing}() (CNOlympics.sol#349-352)
CNOlympics.swapBack() (CNOlympics.sol#305-374) has external calls inside a loop: (success,None) = address(buyBackFeeReceiver).call{gas: 30000,value: amountETHBuyBack}() (CNOlympics.sol#353-356)
CNOlympics.swapBack() (CNOlympics.sol#305-374) has external calls inside a loop: (success,None) = address(ecosystemFeeReceiver).call{gas: 30000,value: amountETHEco}() (CNOlympics.sol#357-360)
CNOlympics.swapBack() (CNOlympics.sol#305-374) has external calls inside a loop: router.addLiquidityETH{value: amountETHLiquidity}(address(this),amountToLiquify,0,0,autoLiquidityReceiver,block.timestamp) (CNOlympics.sol#365-372)
Favor pull over push strategy for external calls.

Additional information: link

Reentrancy in CNOlympics.constructor() (CNOlympics.sol#112-142):
External calls:
- pair = IDEXFactory(router.factory()).createPair(router.WETH(),address(this)) (CNOlympics.sol#115-118)
State variables written after the call(s):
- _allowedFragments[address(this)][address(router)] = uint256(- 1) (CNOlympics.sol#119)
- _gonBalances[msg.sender] = TOTAL_GONS (CNOlympics.sol#123)
- _gonsPerFragment = TOTAL_GONS.div(_totalSupply) (CNOlympics.sol#124)
- _isFeeExempt[msg.sender] = true (CNOlympics.sol#127)
- _isFeeExempt[address(this)] = true (CNOlympics.sol#128)
- _isMaxWalletExempt[pair] = true (CNOlympics.sol#130)
- _isMaxWalletExempt[DEAD] = true (CNOlympics.sol#131)
- _isMaxWalletExempt[address(this)] = true (CNOlympics.sol#132)
- _isMaxWalletExempt[msg.sender] = true (CNOlympics.sol#133)
- _isMaxWalletExempt[owner()] = true (CNOlympics.sol#134)
- _totalSupply = INITIAL_FRAGMENTS_SUPPLY (CNOlympics.sol#122)
- autoLiquidityReceiver = 0x000000000000000000000000000000000000dEaD (CNOlympics.sol#136)
- buyBackFeeReceiver = 0x37668335b3A9d0511CE23EA4e6a4d598b92ccA46 (CNOlympics.sol#139)
- ecosystemFeeReceiver = 0x37668335b3A9d0511CE23EA4e6a4d598b92ccA46 (CNOlympics.sol#138)
- initialDistributionFinished = false (CNOlympics.sol#126)
- marketingFeeReceiver = 0x37668335b3A9d0511CE23EA4e6a4d598b92ccA46 (CNOlympics.sol#137)
- pairContract = InterfaceLP(pair) (CNOlympics.sol#120)
Apply the check-effects-interactions pattern.

Additional information: link

cooldownEnabled(bool,uint8) should be declared external:
- CNOlympics.cooldownEnabled(bool,uint8) (CNOlympics.sol#144-148)
changeAntiDumpPercentage(uint256) should be declared external:
- CNOlympics.changeAntiDumpPercentage(uint256) (CNOlympics.sol#150-153)
changeAntiSniperPercentage(uint256) should be declared external:
- CNOlympics.changeAntiSniperPercentage(uint256) (CNOlympics.sol#155-158)
rescueToken(address,uint256) should be declared external:
- CNOlympics.rescueToken(address,uint256) (CNOlympics.sol#526-532)
name() should be declared external:
- ERC20Detailed.name() (ERC20Detailed.sol#22-24)
symbol() should be declared external:
- ERC20Detailed.symbol() (ERC20Detailed.sol#26-28)
decimals() should be declared external:
- ERC20Detailed.decimals() (ERC20Detailed.sol#30-32)
renounceOwnership() should be declared external:
- Ownable.renounceOwnership() (Ownable.sol#31-34)
transferOwnership(address) should be declared external:
- Ownable.transferOwnership(address) (Ownable.sol#36-38)
Use the external attribute for functions never called from the contract.

Additional information: link

Reentrancy in CNOlympics._transferFrom(address,address,uint256) (CNOlympics.sol#220-269):
External calls:
- swapBack() (CNOlympics.sol#251)
- router.swapExactTokensForETHSupportingFeeOnTransferTokens(amountToSwap,0,path,address(this),block.timestamp) (CNOlympics.sol#327-333)
- (success) = address(marketingFeeReceiver).call{gas: 30000,value: amountETHMarketing}() (CNOlympics.sol#349-352)
- (success,None) = address(buyBackFeeReceiver).call{gas: 30000,value: amountETHBuyBack}() (CNOlympics.sol#353-356)
- (success,None) = address(ecosystemFeeReceiver).call{gas: 30000,value: amountETHEco}() (CNOlympics.sol#357-360)
- router.addLiquidityETH{value: amountETHLiquidity}(address(this),amountToLiquify,0,0,autoLiquidityReceiver,block.timestamp) (CNOlympics.sol#365-372)
External calls sending eth:
- swapBack() (CNOlympics.sol#251)
- (success) = address(marketingFeeReceiver).call{gas: 30000,value: amountETHMarketing}() (CNOlympics.sol#349-352)
- (success,None) = address(buyBackFeeReceiver).call{gas: 30000,value: amountETHBuyBack}() (CNOlympics.sol#353-356)
- (success,None) = address(ecosystemFeeReceiver).call{gas: 30000,value: amountETHEco}() (CNOlympics.sol#357-360)
- router.addLiquidityETH{value: amountETHLiquidity}(address(this),amountToLiquify,0,0,autoLiquidityReceiver,block.timestamp) (CNOlympics.sol#365-372)
Event emitted after the call(s):
- Transfer(sender,address(this),feeAmount.div(_gonsPerFragment)) (CNOlympics.sol#300)
- gonAmountReceived = takeFee(sender,gonAmount,isSell) (CNOlympics.sol#256-258)
- Transfer(sender,recipient,gonAmountReceived.div(_gonsPerFragment)) (CNOlympics.sol#263-267)
Reentrancy in CNOlympics.constructor() (CNOlympics.sol#112-142):
External calls:
- pair = IDEXFactory(router.factory()).createPair(router.WETH(),address(this)) (CNOlympics.sol#115-118)
Event emitted after the call(s):
- Transfer(address(0x0),msg.sender,_totalSupply) (CNOlympics.sol#141)
Apply the check-effects-interactions pattern.

Additional information: link

CNOlympics._transferFrom(address,address,uint256) (CNOlympics.sol#220-269) uses timestamp for comparisons
Dangerous comparisons:
- require(bool,string)(cooldownTimer[recipient] < block.timestamp,buy Cooldown exists) (CNOlympics.sol#227)
CNOlympics.takeFee(address,uint256,bool) (CNOlympics.sol#284-303) uses timestamp for comparisons
Dangerous comparisons:
- isSell && antiDump && block.timestamp < LaunchTimestamp + SellTaxDuration (CNOlympics.sol#290)
- antiSniper && block.timestamp < LaunchTimestamp + BuyTaxDuration (CNOlympics.sol#293)
Avoid relying on block.timestamp.

Additional information: link

CNOlympics.swapping() (CNOlympics.sol#82-86) has costly operations inside a loop:
- inSwap = true (CNOlympics.sol#83)
CNOlympics.swapping() (CNOlympics.sol#82-86) has costly operations inside a loop:
- inSwap = false (CNOlympics.sol#85)
Use a local variable to hold the loop computation result.

Additional information: link

CNOlympics.transferToAddressETH(address,uint256) (CNOlympics.sol#541-545) is never used and should be removed
SafeMath.mod(uint256,uint256) (SafeMath.sol#53-56) is never used and should be removed
SafeMathInt.abs(int256) (SafeMathInt.sol#34-37) is never used and should be removed
SafeMathInt.add(int256,int256) (SafeMathInt.sol#28-32) is never used and should be removed
SafeMathInt.div(int256,int256) (SafeMathInt.sol#16-20) is never used and should be removed
SafeMathInt.mul(int256,int256) (SafeMathInt.sol#8-14) is never used and should be removed
SafeMathInt.sub(int256,int256) (SafeMathInt.sol#22-26) is never used and should be removed
Remove unused functions.

Additional information: link

CNOlympics.totalFee (CNOlympics.sol#61-62) is set pre-construction with a non-constant function or state variable:
- ecosystemFee.add(liquidityFee).add(marketingFee).add(buyBackFee)
Remove any initialization of state variables via non-constant state variables or function calls. If variables must be set upon contract deployment, locate initialization in the constructor instead.

Additional information: link

Pragma version^0.7.4 (CNOlympics.sol#7) allows old versions
Pragma version^0.7.4 (ERC20Detailed.sol#2) allows old versions
Pragma version^0.7.4 (IDEXFactory.sol#2) allows old versions
Pragma version^0.7.4 (IDEXRouter.sol#2) allows old versions
Pragma version^0.7.4 (IERC20.sol#2) allows old versions
Pragma version^0.7.4 (InterfaceLP.sol#2) allows old versions
Pragma version^0.7.4 (Ownable.sol#2) allows old versions
Pragma version^0.7.4 (SafeMath.sol#2) allows old versions
Pragma version^0.7.4 (SafeMathInt.sol#2) allows old versions
Deploy with any of the following Solidity versions: 0.5.16 - 0.5.17, 0.6.11 - 0.6.12, 0.7.5 - 0.7.6 Use a simple pragma version that allows any of these versions. Consider using the latest version of Solidity for testing.

Additional information: link

Low level call in CNOlympics.swapBack() (CNOlympics.sol#305-374):
- (success) = address(marketingFeeReceiver).call{gas: 30000,value: amountETHMarketing}() (CNOlympics.sol#349-352)
- (success,None) = address(buyBackFeeReceiver).call{gas: 30000,value: amountETHBuyBack}() (CNOlympics.sol#353-356)
- (success,None) = address(ecosystemFeeReceiver).call{gas: 30000,value: amountETHEco}() (CNOlympics.sol#357-360)
Avoid low-level calls. Check the call success. If the call is meant for a contract, check for code existence

Additional information: link

Parameter CNOlympics.cooldownEnabled(bool,uint8)._status (CNOlympics.sol#144) is not in mixedCase
Parameter CNOlympics.cooldownEnabled(bool,uint8)._interval (CNOlympics.sol#144) is not in mixedCase
Parameter CNOlympics.setMaster(address)._master (CNOlympics.sol#168) is not in mixedCase
Parameter CNOlympics.setLP(address)._address (CNOlympics.sol#172) is not in mixedCase
Parameter CNOlympics.enableTransfer(address)._addr (CNOlympics.sol#429) is not in mixedCase
Parameter CNOlympics.setFeeExempt(address)._addr (CNOlympics.sol#433) is not in mixedCase
Parameter CNOlympics.checkFeeExempt(address)._addr (CNOlympics.sol#437) is not in mixedCase
Parameter CNOlympics.setMaxWalletExempt(address)._addr (CNOlympics.sol#441) is not in mixedCase
Parameter CNOlympics.checkMaxWalletExempt(address)._addr (CNOlympics.sol#445) is not in mixedCase
Parameter CNOlympics.setMaxWalletToken(uint256,uint256)._num (CNOlympics.sol#449) is not in mixedCase
Parameter CNOlympics.setMaxWalletToken(uint256,uint256)._denom (CNOlympics.sol#449) is not in mixedCase
Parameter CNOlympics.setSwapBackSettings(bool,uint256,uint256)._enabled (CNOlympics.sol#473) is not in mixedCase
Parameter CNOlympics.setSwapBackSettings(bool,uint256,uint256)._num (CNOlympics.sol#474) is not in mixedCase
Parameter CNOlympics.setSwapBackSettings(bool,uint256,uint256)._denom (CNOlympics.sol#475) is not in mixedCase
Parameter CNOlympics.setFees(uint256,uint256,uint256,uint256,uint256)._ecosystemFee (CNOlympics.sol#499) is not in mixedCase
Parameter CNOlympics.setFees(uint256,uint256,uint256,uint256,uint256)._liquidityFee (CNOlympics.sol#500) is not in mixedCase
Parameter CNOlympics.setFees(uint256,uint256,uint256,uint256,uint256)._buyBackFee (CNOlympics.sol#501) is not in mixedCase
Parameter CNOlympics.setFees(uint256,uint256,uint256,uint256,uint256)._marketingFee (CNOlympics.sol#502) is not in mixedCase
Parameter CNOlympics.setFees(uint256,uint256,uint256,uint256,uint256)._feeDenominator (CNOlympics.sol#503) is not in mixedCase
Parameter CNOlympics.setFeeReceivers(address,address,address,address)._autoLiquidityReceiver (CNOlympics.sol#515) is not in mixedCase
Parameter CNOlympics.setFeeReceivers(address,address,address,address)._ecosystemFeeReceiver (CNOlympics.sol#516) is not in mixedCase
Parameter CNOlympics.setFeeReceivers(address,address,address,address)._marketingFeeReceiver (CNOlympics.sol#517) is not in mixedCase
Parameter CNOlympics.setFeeReceivers(address,address,address,address)._buyBackFeeReceiver (CNOlympics.sol#518) is not in mixedCase
Variable CNOlympics._isFeeExempt (CNOlympics.sol#34) is not in mixedCase
Variable CNOlympics._isMaxWalletExempt (CNOlympics.sol#35) is not in mixedCase
Variable CNOlympics.DEAD (CNOlympics.sol#65) is not in mixedCase
Variable CNOlympics.ZERO (CNOlympics.sol#66) is not in mixedCase
Variable CNOlympics.BuyTaxDuration (CNOlympics.sol#93) is not in mixedCase
Variable CNOlympics.SellTaxDuration (CNOlympics.sol#94) is not in mixedCase
Variable CNOlympics.LaunchTimestamp (CNOlympics.sol#282) is not in mixedCase
Function IDEXRouter.WETH() (IDEXRouter.sol#7) is not in mixedCase
Follow the Solidity naming convention.

Additional information: link

Variable IDEXRouter.addLiquidity(address,address,uint256,uint256,uint256,uint256,address,uint256).amountADesired (IDEXRouter.sol#12) is too similar to IDEXRouter.addLiquidity(address,address,uint256,uint256,uint256,uint256,address,uint256).amountBDesired (IDEXRouter.sol#13)
Prevent variables from having similar names.

Additional information: link

CNOlympics.constructor() (CNOlympics.sol#112-142) uses literals with too many digits:
- autoLiquidityReceiver = 0x000000000000000000000000000000000000dEaD (CNOlympics.sol#136)
CNOlympics.slitherConstructorVariables() (CNOlympics.sol#18-583) uses literals with too many digits:
- DEAD = 0x000000000000000000000000000000000000dEaD (CNOlympics.sol#65)
CNOlympics.slitherConstructorVariables() (CNOlympics.sol#18-583) uses literals with too many digits:
- ZERO = 0x0000000000000000000000000000000000000000 (CNOlympics.sol#66)
Use: Ether suffix, Time suffix, or The scientific notation

Additional information: link

CNOlympics.MAX_SUPPLY (CNOlympics.sol#104) is never used in CNOlympics (CNOlympics.sol#18-583)
SafeMathInt.MAX_INT256 (SafeMathInt.sol#6) is never used in SafeMathInt (SafeMathInt.sol#4-39)
Remove unused state variables.

Additional information: link

CNOlympics.BuyTaxDuration (CNOlympics.sol#93) should be constant
CNOlympics.DEAD (CNOlympics.sol#65) should be constant
CNOlympics.SellTaxDuration (CNOlympics.sol#94) should be constant
CNOlympics.ZERO (CNOlympics.sol#66) should be constant
Add the constant attributes to state variables that never change.

Additional information: link

Holders:


Token seems to be untradeable: there is no PancakeSwap trading pair and no trading volumes. Ignore for presale.


Number of Binance Smart Chain (BSC) token holders is less than 100. Token is either dead or inactive. Ignore for presale.


Unable to find Twitter account


Telegram account has less than 100 subscribers


Unable to find Blog account (Reddit or Medium)


Unable to find Youtube account


Unable to find Discord account


Unable to find website, listings and other project-related information


Young tokens have high risks of scam / price dump / death


Token has no active CoinGecko listing / rank


Token has no active CoinMarketCap listing / rank

Price for NO.1