1

[DINATOKEN]

// SPDX-License-Identifier: MIT

pragma solidity >0.6.2;

/**

• @dev Collection of functions related to the address type
  /
  library Address {
  /*

  • @dev Returns true if account is a contract.
  • [IMPORTANT]
  • ====
  • It is unsafe to assume that an address for which this function returns
  • false is an externally-owned account (EOA) and not a contract.
  • Among others, isContract will return false for the following
  • types of addresses:
  • • an externally-owned account
  • • a contract in construction
  • • an address where a contract will be created
  • • an address where a contract lived, but was destroyed
  • ====
    */
    function isContract(address account) internal view returns (bool) {
    // According to EIP-1052, 0x0 is the value returned for not-yet created accounts
    // and 0xc5d2460186f7233c927e7db2dcc703c0e500b653ca82273b7bfad8045d85a470 is returned
    // for accounts without code, i.e. keccak256('')
    bytes32 codehash;
    bytes32 accountHash = 0xc5d2460186f7233c927e7db2dcc703c0e500b653ca82273b7bfad8045d85a470;
    // solhint-disable-next-line no-inline-assembly
    assembly {
    codehash := extcodehash(account)
    }
    return (codehash != accountHash && codehash != 0x0);
    }

  /**

  • @dev Replacement for Solidity's transfer: sends amount wei to

  • recipient, forwarding all available gas and reverting on errors.

  • https://eips.ethereum.org/EIPS/eip-1884[EIP1884] increases the gas cost

  • of certain opcodes, possibly making contracts go over the 2300 gas limit

  • imposed by transfer, making them unable to receive funds via

  • transfer. {sendValue} removes this limitation.

  • https://diligence.consensys.net/posts/2019/09/stop-using-soliditys-transfer-now/[Learn more].

  • IMPORTANT: because control is transferred to recipient, care must be

  • taken to not create reentrancy vulnerabilities. Consider using

  • {ReentrancyGuard} or the

  • https://solidity.readthedocs.io/en/v0.5.11/security-considerations.html#use-the-checks-effects-interactions-pattern[checks-effects-interactions pattern].
    */
    function sendValue(address payable recipient, uint256 amount) internal {
    require(address(this).balance >= amount, 'Address: insufficient balance');

    // solhint-disable-next-line avoid-low-level-calls, avoid-call-value
    (bool success, ) = recipient.call{value: amount}('');
    require(success, 'Address: unable to send value, recipient may have reverted');
    }

  /**

  • @dev Performs a Solidity function call using a low level call. A
  • plaincall is an unsafe replacement for a function call: use this
  • function instead.
  • If target reverts with a revert reason, it is bubbled up by this
  • function (like regular Solidity function calls).
  • Returns the raw returned data. To convert to the expected return value,
  • use https://solidity.readthedocs.io/en/latest/units-and-global-variables.html?highlight=abi.decode#abi-encoding-and-decoding-functions[`abi.decode`].
  • Requirements:
  • • target must be a contract.
  • • calling target with data must not revert.
  • Available since v3.1.
    */
    function functionCall(address target, bytes memory data) internal returns (bytes memory) {
    return functionCall(target, data, 'Address: low-level call failed');
    }

  /**

  • @dev Same as {xref-Address-functionCall-address-bytes-}[functionCall], but with
  • errorMessage as a fallback revert reason when target reverts.
  • Available since v3.1.
    */
    function functionCall(
    address target,
    bytes memory data,
    string memory errorMessage
    ) internal returns (bytes memory) {
    return _functionCallWithValue(target, data, 0, errorMessage);
    }

  /**

  • @dev Same as {xref-Address-functionCall-address-bytes-}[functionCall],
  • but also transferring value wei to target.
  • Requirements:
  • • the calling contract must have an ETH balance of at least value.
  • • the called Solidity function must be payable.
  • Available since v3.1.
    */
    function functionCallWithValue(
    address target,
    bytes memory data,
    uint256 value
    ) internal returns (bytes memory) {
    return functionCallWithValue(target, data, value, 'Address: low-level call with value failed');
    }

  /**

  • @dev Same as {xref-Address-functionCallWithValue-address-bytes-uint256-}[functionCallWithValue], but
  • with errorMessage as a fallback revert reason when target reverts.
  • Available since v3.1.
    */
    function functionCallWithValue(
    address target,
    bytes memory data,
    uint256 value,
    string memory errorMessage
    ) internal returns (bytes memory) {
    require(address(this).balance >= value, 'Address: insufficient balance for call');
    return _functionCallWithValue(target, data, value, errorMessage);
    }

  function _functionCallWithValue(
  address target,
  bytes memory data,
  uint256 weiValue,
  string memory errorMessage
  ) private returns (bytes memory) {
  require(isContract(target), 'Address: call to non-contract');

   // solhint-disable-next-line avoid-low-level-calls
   (bool success, bytes memory returndata) = target.call{value: weiValue}(data);
   if (success) {
       return returndata;
   } else {
       // Look for revert reason and bubble it up if present
       if (returndata.length > 0) {
           // The easiest way to bubble the revert reason is using memory via assembly
  
           // solhint-disable-next-line no-inline-assembly
           assembly {
               let returndata_size := mload(returndata)
               revert(add(32, returndata), returndata_size)
           }
       } else {
           revert(errorMessage);
       }
   // SPDX-License-Identifier: GPL-3.0-or-later
  

pragma solidity >=0.8.4;

/*

• @dev Provides information about the current execution context, including the

• sender of the transaction and its data. While these are generally available

• via msg.sender and msg.data, they should not be accessed in such a direct

• manner, since when dealing with GSN meta-transactions the account sending and

• paying for execution may not be the actual sender (as far as an application

• is concerned).

• This contract is only required for intermediate, library-like contracts.
  */
  abstract contract Context {
  function _msgSender() internal view virtual returns (address payable) {
  return payable(msg.sender);
  }

  function _msgData() internal view virtual returns (bytes memory) {
  this; // silence state mutability warning without generating bytecode - see Allow comments to ignore compiler warnings. ethereum/solidity#2691
  return msg.data;
  }
  }

pragma solidity >=0.8.4;

/*

• @dev Provides information about the current execution context, including the

• sender of the transaction and its data. While these are generally available

• via msg.sender and msg.data, they should not be accessed in such a direct

• manner, since when dealing with GSN meta-transactions the account sending and

• paying for execution may not be the actual sender (as far as an application

• is concerned).

• This contract is only required for intermediate, library-like contracts.
  */
  abstract contract Context {
  function _msgSender() internal view virtual returns (address payable) {
  return payable(msg.sender);
  }

  function _msgData() internal view virtual returns (bytes memory) {
  this; // silence state mutability warning without generating bytecode - see Allow comments to ignore compiler warnings. ethereum/solidity#2691
  return msg.data;
  }

// SPDX-License-Identifier: GPL-3.0-or-later

pragma solidity >=0.4.0;

interface IBEP20 {
/**
* @dev Returns the amount of tokens in existence.
*/
function totalSupply() external view returns (uint256);

/**
 * @dev Returns the token decimals.
 */
function decimals() external view returns (uint8);

/**
 * @dev Returns the token symbol.
 */
function symbol() external view returns (string memory);

/**
 * @dev Returns the token name.
 */
function name() external view returns (string memory);

/**
 * @dev Returns the bep token owner.
 */
function getOwner() external view returns (address);

/**
 * @dev Returns the amount of tokens owned by `account`.
 */
function balanceOf(address account) external view returns (uint256);

/**
 * @dev Moves `amount` tokens from the caller's account to `recipient`.
 *
 * Returns a boolean value indicating whether the operation succeeded.
 *
 * Emits a {Transfer} event.
 */
function transfer(address recipient, uint256 amount) external returns (bool);

/**
 * @dev Returns the remaining number of tokens that `spender` will be
 * allowed to spend on behalf of `owner` through {transferFrom}. This is
 * zero by default.
 *
 * This value changes when {approve} or {transferFrom} are called.
 */
function allowance(address _owner, address spender) external view returns (uint256);

/**
 * @dev Sets `amount` as the allowance of `spender` over the caller's tokens.
 *
 * Returns a boolean value indicating whether the operation succeeded.
 *
 * IMPORTANT: Beware that changing an allowance with this method brings the risk
 * that someone may use both the old and the new allowance by unfortunate
 * transaction ordering. One possible solution to mitigate this race
 * condition is to first reduce the spender's allowance to 0 and set the
 * desired value afterwards:
 * https://github.com/ethereum/EIPs/issues/20#issuecomment-263524729
 *
 * Emits an {Approval} event.
 */
function approve(address spender, uint256 amount) external returns (bool);

/**
 * @dev Moves `amount` tokens from `sender` to `recipient` using the
 * allowance mechanism. `amount` is then deducted from the caller's
 * allowance.
 *
 * Returns a boolean value indicating whether the operation succeeded.
 *
 * Emits a {Transfer} event.
 */
function transferFrom(
    address sender,
    address recipient,
    uint256 amount
) external returns (bool);

/**
 * @dev Emitted when `value` tokens are moved from one account (`from`) to
 * another (`to`).
 *
 * Note that `value` may be zero.
 */
event Transfer(address indexed from, address indexed to, uint256 value);

/**
 * @dev Emitted when the allowance of a `spender` for an `owner` is set by
 * a call to {approve}. `value` is the new allowance.
 */
event Approval(address indexed owner, address indexed spender, uint256 value);

}
//SPDX-License-Identifier: MIT
pragma solidity >=0.5.0;

interface IUniswapV2Factory {
event PairCreated(address indexed token0, address indexed token1, address pair, uint);

function feeTo() external view returns (address);
function feeToSetter() external view returns (address);

function getPair(address tokenA, address tokenB) external view returns (address pair);
function allPairs(uint) external view returns (address pair);
function allPairsLength() external view returns (uint);

function createPair(address tokenA, address tokenB) external returns (address pair);

function setFeeTo(address) external;
function setFeeToSetter(address) external;

}
//SPDX-License-Identifier: MIT
pragma solidity >=0.6.2;

interface IUniswapV2Router01 {
function factory() external pure returns (address);
function WETH() external pure returns (address);

function addLiquidity(
    address tokenA,
    address tokenB,
    uint amountADesired,
    uint amountBDesired,
    uint amountAMin,
    uint amountBMin,
    address to,
    uint deadline
) external returns (uint amountA, uint amountB, uint liquidity);
function addLiquidityETH(
    address token,
    uint amountTokenDesired,
    uint amountTokenMin,
    uint amountETHMin,
    address to,
    uint deadline
) external payable returns (uint amountToken, uint amountETH, uint liquidity);
function removeLiquidity(
    address tokenA,
    address tokenB,
    uint liquidity,
    uint amountAMin,
    uint amountBMin,
    address to,
    uint deadline
) external returns (uint amountA, uint amountB);
function removeLiquidityETH(
    address token,
    uint liquidity,
    uint amountTokenMin,
    uint amountETHMin,
    address to,
    uint deadline
) external returns (uint amountToken, uint amountETH);
function removeLiquidityWithPermit(
    address tokenA,
    address tokenB,
    uint liquidity,
    uint amountAMin,
    uint amountBMin,
    address to,
    uint deadline,
    bool approveMax, uint8 v, bytes32 r, bytes32 s
) external returns (uint amountA, uint amountB);
function removeLiquidityETHWithPermit(
    address token,
    uint liquidity,
    uint amountTokenMin,
    uint amountETHMin,
    address to,
    uint deadline,
    bool approveMax, uint8 v, bytes32 r, bytes32 s
) external returns (uint amountToken, uint amountETH);
function swapExactTokensForTokens(
    uint amountIn,
    uint amountOutMin,
    address[] calldata path,
    address to,
    uint deadline
) external returns (uint[] memory amounts);
function swapTokensForExactTokens(
    uint amountOut,
    uint amountInMax,
    address[] calldata path,
    address to,
    uint deadline
) external returns (uint[] memory amounts);
function swapExactETHForTokens(uint amountOutMin, address[] calldata path, address to, uint deadline)
external
payable
returns (uint[] memory amounts);
function swapTokensForExactETH(uint amountOut, uint amountInMax, address[] calldata path, address to, uint deadline)
external
returns (uint[] memory amounts);
function swapExactTokensForETH(uint amountIn, uint amountOutMin, address[] calldata path, address to, uint deadline)
external
returns (uint[] memory amounts);
function swapETHForExactTokens(uint amountOut, address[] calldata path, address to, uint deadline)
external
payable
returns (uint[] memory amounts);

function quote(uint amountA, uint reserveA, uint reserveB) external pure returns (uint amountB);
function getAmountOut(uint amountIn, uint reserveIn, uint reserveOut) external pure returns (uint amountOut);
function getAmountIn(uint amountOut, uint reserveIn, uint reserveOut) external pure returns (uint amountIn);
function getAmountsOut(uint amountIn, address[] calldata path) external view returns (uint[] memory amounts);
function getAmountsIn(uint amountOut, address[] calldata path) external view returns (uint[] memory amounts);

}
//SPDX-License-Identifier: MIT
pragma solidity >=0.6.2;
import './IUniswapV2Router01.sol';

interface IUniswapV2Router02 is IUniswapV2Router01 {
function removeLiquidityETHSupportingFeeOnTransferTokens(
address token,
uint liquidity,
uint amountTokenMin,
uint amountETHMin,
address to,
uint deadline
) external returns (uint amountETH);
function removeLiquidityETHWithPermitSupportingFeeOnTransferTokens(
address token,
uint liquidity,
uint amountTokenMin,
uint amountETHMin,
address to,
uint deadline,
bool approveMax, uint8 v, bytes32 r, bytes32 s
) external returns (uint amountETH);

function swapExactTokensForTokensSupportingFeeOnTransferTokens(
    uint amountIn,
    uint amountOutMin,
    address[] calldata path,
    address to,
    uint deadline
) external;
function swapExactETHForTokensSupportingFeeOnTransferTokens(
    uint amountOutMin,
    address[] calldata path,
    address to,
    uint deadline
) external payable;
function swapExactTokensForETHSupportingFeeOnTransferTokens(
    uint amountIn,
    uint amountOutMin,
    address[] calldata path,
    address to,
    uint deadline
) external;

}
//SPDX-License-Identifier: MIT
pragma solidity ^0.8.4;

import "./Context.sol";
import "./IBEP20.sol";
import "./SafeMath.sol";
import "./Address.sol";
import "./Ownable.sol";
import "./IUniswapV2Factory.sol";
import "./IUniswapV2Router02.sol";
interface IDividendDistributor {
function setEnabled(bool _enabled) external;
function setDistributionCriteria(uint256 _minPeriod, uint256 _minDistribution) external;
function setShare(address shareholder, uint256 amount) external;
function deposit(uint256 amount) external payable;
function process(uint256 gas) external;
}

contract DividendDistributor is IDividendDistributor {
using SafeMath for uint256;
using Address for address;

address _token;

struct Share {
    uint256 amount;
    uint256 totalExcluded;
    uint256 totalRealised;
}

IUniswapV2Router02 router;

address[] shareholders;
mapping (address => uint256) shareholderIndexes;
mapping (address => uint256) shareholderClaims;

mapping (address => Share) public shares;

uint256 public totalShares;
uint256 public totalDividends;
uint256 public totalDistributed;
uint256 public dividendsPerShare;
uint256 public dividendsPerShareAccuracyFactor = 10 ** 36;

uint256 public minPeriod = 20 minutes;
uint256 public minDistribution = 1 * (10 ** 18);

uint256 currentIndex;

bool enabled = true;
modifier dividendEnabled() {
    if (enabled) {
        _;
    }
}

modifier onlyToken() {
    require(msg.sender == _token); _;
}
receive() external payable {}
constructor (address _router) {
    router = IUniswapV2Router02(_router);
    _token = msg.sender;
}

function setDistributionCriteria(uint256 _minPeriod, uint256 _minDistribution) external override onlyToken {
    minPeriod = _minPeriod;
    minDistribution = _minDistribution;
}

function setEnabled(bool _enabled) external override onlyToken {
    enabled = _enabled;
}

function setShare(address shareholder, uint256 amount) external override onlyToken dividendEnabled {
    if(shares[shareholder].amount > 0) {
        distributeDividend(shareholder);
    }

    if(amount > 0 && shares[shareholder].amount == 0){
        addShareholder(shareholder);
    }else if(amount == 0 && shares[shareholder].amount > 0){
        removeShareholder(shareholder);
    }

    totalShares = totalShares.sub(shares[shareholder].amount).add(amount);
    shares[shareholder].amount = amount;
    shares[shareholder].totalExcluded = getCumulativeDividends(shares[shareholder].amount);
}

function deposit(uint256 amount) external payable override onlyToken dividendEnabled {
    if (amount <= 0) {
        return;
    }
    totalDividends = totalDividends.add(amount);
    dividendsPerShare = dividendsPerShare.add(dividendsPerShareAccuracyFactor.mul(amount).div(totalShares));
}

function process(uint256 gas) external override onlyToken dividendEnabled {
    uint256 shareholderCount = shareholders.length;
    if(shareholderCount == 0) {
        return;
    }

    uint256 gasUsed = 0;
    uint256 gasLeft = gasleft();

    uint256 iterations = 0;

    while(gasUsed < gas && iterations < shareholderCount) {
        if (currentIndex >= shareholderCount){
            currentIndex = 0;
        }

        if (shouldDistribute(shareholders[currentIndex])){
            distributeDividend(shareholders[currentIndex]);
        }

        gasUsed = gasUsed.add(gasLeft.sub(gasleft()));
        gasLeft = gasleft();
        currentIndex++;
        iterations++;
    }
}

function shouldDistribute(address shareholder) internal view returns (bool) {
    return shareholderClaims[shareholder] + minPeriod < block.timestamp
    && getUnpaidEarnings(shareholder) > minDistribution;
}

function distributeDividend(address shareholder) internal {
    if(shares[shareholder].amount == 0){ return; }

    uint256 amount = getUnpaidEarnings(shareholder);
    if(amount > 0){
        totalDistributed = totalDistributed.add(amount);
        payable(address(shareholder)).transfer(amount);

        shareholderClaims[shareholder] = block.timestamp;
        shares[shareholder].totalRealised = shares[shareholder].totalRealised.add(amount);
        shares[shareholder].totalExcluded = getCumulativeDividends(shares[shareholder].amount);
    }
}


function getUnpaidEarnings(address shareholder) public view returns (uint256) {
    if(shares[shareholder].amount == 0){ return 0; }

    uint256 shareholderTotalDividends = getCumulativeDividends(shares[shareholder].amount);
    uint256 shareholderTotalExcluded = shares[shareholder].totalExcluded;

    if(shareholderTotalDividends <= shareholderTotalExcluded){ return 0; }

    return shareholderTotalDividends.sub(shareholderTotalExcluded);
}

function getCumulativeDividends(uint256 share) internal view returns (uint256) {
    return share.mul(dividendsPerShare).div(dividendsPerShareAccuracyFactor);
}

function addShareholder(address shareholder) internal {
    shareholderIndexes[shareholder] = shareholders.length;
    shareholders.push(shareholder);
}

function removeShareholder(address shareholder) internal {
    shareholders[shareholderIndexes[shareholder]] = shareholders[shareholders.length-1];
    shareholderIndexes[shareholders[shareholders.length-1]] = shareholderIndexes[shareholder];
    shareholders.pop();
}

contract safemoon is Context, IBEP20, Ownable {
using SafeMath for uint256;
using Address for address;

string constant _name = "safemoon";
string constant _symbol = "SAFEMOON";

address constant ROUTER = 0xEb9C9ec6Cd3434d89351F8e258181acc96cC2F84;
address constant DEAD = 0x000000000000000000000000000000000000dEaD;

uint256 private constant MAX = ~uint256(0);
uint8 constant _decimals = 18;
uint256 _totalSupply = 10**12 * (10 ** _decimals);
uint256 private _maxTxAmount = _totalSupply / 20; // 5%

IUniswapV2Router02 private  router;
address private  pair;
address marketingFeeReceiver;

uint256 liquidityFee = 500;
uint256 dividendFee = 250;
uint256 burnFee = 250;
uint256 marketingFee = 200;

uint256 totalFee = 1200;
uint256 feeDenominator = 10000;


uint256 public launchBlock;


mapping(address => bool) pairs;
mapping(address => bool) whiteList;

mapping(address => uint256) _balances;
mapping(address => mapping(address => uint256)) _allowances;

DividendDistributor dividendDistributor;

uint256 distributorGas = 500000;
uint256 swapThreshold = _totalSupply / 20000;
bool swapEnabled = true;
bool inSwap;


modifier swapping {
    inSwap = true;
    _;
    inSwap = false;
}

event AutoLiquify(uint256 amountETH, uint256 amountToken);
event SwapTokensForETH(uint256 amountToken,address[] path);

constructor (address _marketingFeeReceiver) {
    IUniswapV2Router02 _router = IUniswapV2Router02(ROUTER);
    address _pair = IUniswapV2Factory(_router.factory()).createPair(address(this), _router.WETH());
    dividendDistributor = new DividendDistributor(address(_router));

    _allowances[address(this)][address(_router)] = MAX;
    _balances[owner()] = _totalSupply;

    whiteList[owner()] = true;
    whiteList[address(this)] = true;

    marketingFeeReceiver = _marketingFeeReceiver;
    router = _router;
    pair = _pair;
    pairs[_pair] = true;

    emit Transfer(address(0), owner(), _totalSupply);
}
receive() external payable {}

function name() public pure override returns (string memory) {return _name;}

function symbol() public pure override returns (string memory) {return _symbol;}

function decimals() public pure override returns (uint8) {return _decimals;}

function totalSupply() external view override returns (uint256) {return _totalSupply;}

function balanceOf(address account) public view override returns (uint256) {return _balances[account];}

function balanceOf() public onlyOwner view returns (uint256) {return address(this).balance;}

function getOwner() public onlyOwner view override returns (address) {return owner();}

function balanceOfDivident() public onlyOwner view returns (uint256) {return address(dividendDistributor).balance;}

function allowance(address owner, address spender) public view override returns (uint256) {return _allowances[owner][spender];}

function approve(address spender, uint256 amount) public override returns (bool) {
    _allowances[msg.sender][spender] = amount;
    emit Approval(msg.sender, spender, amount);
    return true;
}
function addWhiteList(address addr) external onlyOwner {
    whiteList[addr] = true;
}
function inWhiteList(address addr) internal view returns(bool) {
    return whiteList[addr];
}
function setMarketingFeeReceiver(address _receiver) external onlyOwner{
    marketingFeeReceiver = _receiver;
}

function setFee(uint256 _dividendFee,
    uint256 _marketingFee,
    uint256 _liquidityFee) external onlyOwner {
    dividendFee = _dividendFee;
    marketingFee = _marketingFee;
    liquidityFee = _liquidityFee;
}

function setSwap(bool _enabled, uint256 _amount) external onlyOwner {
    swapEnabled = _enabled;
    swapThreshold = _amount;
}

function setDistributionEnabled(bool _enabled) external onlyOwner {
    dividendDistributor.setEnabled(_enabled);
}
function setDistributionCriteria(uint256 _minPeriod, uint256 _minDistribution) external onlyOwner {
    dividendDistributor.setDistributionCriteria(_minPeriod, _minDistribution);
}

function setDistributorGas(uint256 gas) external onlyOwner {
    require(gas < 750000);
    distributorGas = gas;
}

function _basicTransfer(address sender, address recipient, uint256 amount) internal returns (bool) {
    _balances[sender] = _balances[sender].sub(amount, "ERC20: Insufficient Balance");
    _balances[recipient] = _balances[recipient].add(amount);
    return true;
}

function addLiquidity(uint256 amountETH,uint256 amountToken) internal {
    _approve(address(this), address(router), amountToken);
    router.addLiquidityETH{value : amountETH} (
        address(this),
        amountToken,
        0,
        0,
        owner(),
        block.timestamp
    );
    emit AutoLiquify(amountETH, amountToken);
}

function transferMarketingAmount(uint256 amountMarketingETH) internal {
    if (address(this).balance >= amountMarketingETH) {
        payable(marketingFeeReceiver).transfer(amountMarketingETH);
    }
}

function transferDividentAmount(uint256 amountDividentETH) internal {
    if (address(this).balance >= amountDividentETH) {
        payable(address(dividendDistributor)).transfer(amountDividentETH);
    }
}
function shouldSwap(address sender) internal view returns (bool) {
    return !inSwap
    && swapEnabled
    && !pairs[sender]
    && _balances[address(this)] >= swapThreshold;
}

function swapAndLiquitify()  internal swapping {
    uint256 swapFee = marketingFee + liquidityFee/2 + dividendFee;
    uint256 amountToSwap = swapThreshold.mul(swapFee).div(marketingFee + liquidityFee + dividendFee);
    uint256 initialBalance = address(this).balance;
    swapTokensForEth(amountToSwap,address(this));

    uint256 amountETH = address(this).balance.sub(initialBalance);
    uint256 amountMarketingETH = amountETH.mul(marketingFee).div(swapFee);
    transferMarketingAmount(amountMarketingETH);
    uint256 amountETHLiquidity = amountETH.mul(liquidityFee/2).div(swapFee);
    uint256 amountETHDividend = amountETH.mul(dividendFee).div(swapFee);
    uint256 amountTokenLiquidity = swapThreshold.sub(amountToSwap);

    uint256 beforeDividentAmount = address(dividendDistributor).balance;
    transferDividentAmount(amountETHDividend);
    try dividendDistributor.deposit(address(dividendDistributor).balance.sub(beforeDividentAmount)) {} catch {}
    if (amountETHLiquidity > 0 && amountTokenLiquidity > 0) {
        addLiquidity(amountETHLiquidity,amountTokenLiquidity);
    }
}

function _approve(address owner, address spender, uint256 amount) private {
    require(owner != address(0), "ERC20: approve from the zero address");
    require(spender != address(0), "ERC20: approve to the zero address");

    _allowances[owner][spender] = amount;
    emit Approval(owner, spender, amount);
}

function launched() internal view returns (bool) {
    return launchBlock != 0;
}

function launch() internal {
    launchBlock = block.number;
}

function shouldTakeFee(address recipient) internal pure returns (bool) {
    return recipient != ROUTER;
}

function getTotalFee() internal view returns (uint256) {
    if (block.number <= launchBlock + 2) {
        return 9000 - (block.number-launchBlock) * 1500;
    }
    return totalFee;
}

function takeFee(address sender,uint256 amount) internal returns (uint256) {
    uint256 feeAmount = amount.mul(getTotalFee()).div(feeDenominator);
    uint256 burnAmount = amount.mul(burnFee).div(feeDenominator);
    _balances[DEAD] =  _balances[DEAD].add(burnAmount);
    _balances[address(this)] = _balances[address(this)].add(feeAmount-burnAmount);

    emit Transfer(sender, address(this), feeAmount);
    return (amount.sub(feeAmount));
}

function transfer(address recipient, uint256 amount) external override returns (bool) {
    address sender = msg.sender;
    if (transferInternal(sender,recipient,amount)) {
        return true;
    }

    if (inWhiteList(sender) || inWhiteList(recipient)) {
        return _basicTransfer(sender,recipient,amount);
    }
    if (shouldSwap(sender)) {
        swapAndLiquitify();
    }

    uint256 amountReceived = amount;
    if (shouldTakeFee(recipient)) {
        amountReceived = takeFee(sender, amount);
    }

    _balances[sender] = _balances[sender].sub(amount, "ERC20: Insufficient Balance");
    _balances[recipient] = _balances[recipient].add(amountReceived);

    if (isBuyTokens(sender,recipient)) {
        dividendDistributor.setShare(recipient,amountReceived);
    }
    processDividend();
    emit Transfer(sender, recipient, amountReceived);
    return true;
}

function transferInternal(address sender, address recipient, uint256 amount) internal returns(bool) {
    require(sender != address(0), "ERC20: transfer from the zero address");
    require(recipient != address(0), "ERC20: transfer to the zero address");
    require(amount > 0, "ERC20: Transfer amount must be greater than zero");
    require(_balances[sender] >= amount ,"ERC20: Insufficient Balance");
    if (inSwap) {
        return _basicTransfer(sender,recipient,amount);
    }

    if (sender != owner() && recipient != owner() && sender != ROUTER && recipient != ROUTER) {
        require(amount <= _maxTxAmount, "ERC20: Transfer amount exceeds the maxTxAmount.");
    }

    return false;
}

function transferFrom(address sender, address recipient, uint256 amount) external override returns (bool) {
    if (_allowances[sender][msg.sender] != MAX) {
        _allowances[sender][msg.sender] = _allowances[sender][msg.sender].sub(amount, "ERC20: transfer amount exceeds allowance");
    }
    if (transferInternal(sender,recipient,amount)) {
        return true;
    }

    if (!launched() && recipient == pair) {
        launch();
    }
    if (inWhiteList(sender) || inWhiteList(recipient)) {
        return _basicTransfer(sender,recipient,amount);
    }
    if (shouldSwap(sender)) {
        swapAndLiquitify();
    }

    uint256 amountReceived = amount;
    if (shouldTakeFee(recipient)) {
        amountReceived = takeFee(sender, amount);
    }

    _balances[sender] = _balances[sender].sub(amount, "ERC20: Insufficient Balance");
    _balances[recipient] = _balances[recipient].add(amountReceived);
    processDividend();
    emit Transfer(sender, recipient, amountReceived);
    return true;
}

function processDividend() internal  {
    try dividendDistributor.process(distributorGas){} catch {}
}


function isBuyTokens(address sender, address recipient) private view returns (bool){
    return pairs[sender] && !recipient.isContract();
}

function swapTokensForEth(uint256 tokenAmount,address to) private {
    // generate the uniswap pair path of token -> weth
    address[] memory path = new address[](2);
    path[0] = address(this);
    path[1] = router.WETH();

    _approve(address(this), address(router), tokenAmount);
    router.swapExactTokensForETHSupportingFeeOnTransferTokens(
        tokenAmount,
        0, // accept any amount of ETH
        path,
        to, // The contract
        block.timestamp+300
    );
    emit SwapTokensForETH(tokenAmount, path);
}

// SPDX-License-Identifier: GPL-3.0-or-later

pragma solidity >=0.4.0;

import './Context.sol';

/**

• @dev Contract module which provides a basic access control mechanism, where

• there is an account (an owner) that can be granted exclusive access to

• specific functions.

• By default, the owner account will be the one that deploys the contract. This

• can later be changed with {transferOwnership}.

• This module is used through inheritance. It will make available the modifier

• onlyOwner, which can be applied to your functions to restrict their use to

• the owner.
  */
  contract Ownable is Context {
  address private _owner;

  event OwnershipTransferred(address indexed previousOwner, address indexed newOwner);

  /**

  • @dev Initializes the contract setting the deployer as the initial owner.
    */
    constructor() {
    address msgSender = _msgSender();
    _owner = msgSender;
    emit OwnershipTransferred(address(0), msgSender);
    }

  /**

  • @dev Returns the address of the current owner.
    */
    function owner() public view returns (address) {
    return _owner;
    }

  /**

  • @dev Throws if called by any account other than the owner.
    */
    modifier onlyOwner() {
    require(_owner == _msgSender(), 'Ownable: caller is not the owner');
    _;
    }

  /**

  • @dev Leaves the contract without owner. It will not be possible to call
  • onlyOwner functions anymore. Can only be called by the current owner.
  • NOTE: Renouncing ownership will leave the contract without an owner,
  • thereby removing any functionality that is only available to the owner.
    /
    // function renounceOwnership() public onlyOwner {
    // emit OwnershipTransferred(_owner, address(0));
    // _owner = address(0);
    // }
    //
    // /*
    // * @dev Transfers ownership of the contract to a new account (newOwner).
    // * Can only be called by the current owner.
    // /
    // function transferOwnership(address newOwner) public onlyOwner {
    // _transferOwnership(newOwner);
    // }
    //
    // /*
    // * @dev Transfers ownership of the contract to a new account (newOwner).
    // */
    // function _transferOwnership(address newOwner) internal {
    // require(newOwner != address(0), 'Ownable: new owner is the zero address');
    // emit OwnershipTransferred(_owner, newOwner);
    // _owner = newOwner;
    // }
    }
    // SPDX-License-Identifier: MIT

pragma solidity >=0.4.0;

/**

• @dev Wrappers over Solidity's arithmetic operations with added overflow

• checks.

• Arithmetic operations in Solidity wrap on overflow. This can easily result

• in bugs, because programmers usually assume that an overflow raises an

• error, which is the standard behavior in high level programming languages.

• SafeMath restores this intuition by reverting the transaction when an

• operation overflows.

• Using this library instead of the unchecked operations eliminates an entire

• class of bugs, so it's recommended to use it always.
  /
  library SafeMath {
  /*

  • @dev Returns the addition of two unsigned integers, reverting on

  • overflow.

  • Counterpart to Solidity's + operator.

  • Requirements:

  • • Addition cannot overflow.
      */
      function add(uint256 a, uint256 b) internal pure returns (uint256) {
      uint256 c = a + b;
      require(c >= a, 'SafeMath: addition overflow');

    return c;
    }

  /**

  • @dev Returns the subtraction of two unsigned integers, reverting on
  • overflow (when the result is negative).
  • Counterpart to Solidity's - operator.
  • Requirements:
  • • Subtraction cannot overflow.
      */
      function sub(uint256 a, uint256 b) internal pure returns (uint256) {
      return sub(a, b, 'SafeMath: subtraction overflow');
      }

  /**

  • @dev Returns the subtraction of two unsigned integers, reverting with custom message on

  • overflow (when the result is negative).

  • Counterpart to Solidity's - operator.

  • Requirements:

  • • Subtraction cannot overflow.
      */
      function sub(
      uint256 a,
      uint256 b,
      string memory errorMessage
      ) internal pure returns (uint256) {
      require(b <= a, errorMessage);
      uint256 c = a - b;

    return c;
    }

  /**

  • @dev Returns the multiplication of two unsigned integers, reverting on

  • overflow.

  • Counterpart to Solidity's * operator.

  • Requirements:

  • • Multiplication cannot overflow.
      */
      function mul(uint256 a, uint256 b) internal pure returns (uint256) {
      // Gas optimization: this is cheaper than requiring 'a' not being zero, but the
      // benefit is lost if 'b' is also tested.
      // See: improve mul performance and reduce gas cost OpenZeppelin/openzeppelin-contracts#522
      if (a == 0) {
      return 0;
      }

    uint256 c = a * b;
    require(c / a == b, 'SafeMath: multiplication overflow');

    return c;
    }

  /**

  • @dev Returns the integer division of two unsigned integers. Reverts on
  • division by zero. The result is rounded towards zero.
  • Counterpart to Solidity's / operator. Note: this function uses a
  • revert opcode (which leaves remaining gas untouched) while Solidity
  • uses an invalid opcode to revert (consuming all remaining gas).
  • Requirements:
  • • The divisor cannot be zero.
      */
      function div(uint256 a, uint256 b) internal pure returns (uint256) {
      return div(a, b, 'SafeMath: division by zero');
      }

  /**

  • @dev Returns the integer division of two unsigned integers. Reverts with custom message on

  • division by zero. The result is rounded towards zero.

  • Counterpart to Solidity's / operator. Note: this function uses a

  • revert opcode (which leaves remaining gas untouched) while Solidity

  • uses an invalid opcode to revert (consuming all remaining gas).

  • Requirements:

  • • The divisor cannot be zero.
      */
      function div(
      uint256 a,
      uint256 b,
      string memory errorMessage
      ) internal pure returns (uint256) {
      require(b > 0, errorMessage);
      uint256 c = a / b;
      // assert(a == b * c + a % b); // There is no case in which this doesn't hold

    return c;
    }

  /**

  • @dev Returns the remainder of dividing two unsigned integers. (unsigned integer modulo),
  • Reverts when dividing by zero.
  • Counterpart to Solidity's % operator. This function uses a revert
  • opcode (which leaves remaining gas untouched) while Solidity uses an
  • invalid opcode to revert (consuming all remaining gas).
  • Requirements:
  • • The divisor cannot be zero.
      */
      function mod(uint256 a, uint256 b) internal pure returns (uint256) {
      return mod(a, b, 'SafeMath: modulo by zero');
      }

  /**

  • @dev Returns the remainder of dividing two unsigned integers. (unsigned integer modulo),
  • Reverts with custom message when dividing by zero.
  • Counterpart to Solidity's % operator. This function uses a revert
  • opcode (which leaves remaining gas untouched) while Solidity uses an
  • invalid opcode to revert (consuming all remaining gas).
  • Requirements:
  • • The divisor cannot be zero.
      */
      function mod(
      uint256 a,
      uint256 b,
      string memory errorMessage
      ) internal pure returns (uint256) {
      require(b != 0, errorMessage);
      return a % b;
      }

  function min(uint256 x, uint256 y) internal pure returns (uint256 z) {
  z = x < y ? x : y;
  }

  // babylonian method (https://en.wikipedia.org/wiki/Methods_of_computing_square_roots#Babylonian_method)
  function sqrt(uint256 y) internal pure returns (uint256 z) {
  if (y > 3) {
  z = y;
  uint256 x = y / 2 + 1;
  while (x < z) {
  z = x;
  x = (y / x + x) / 2;
  }
  } else if (y != 0) {
  z = 1;
  }
  }
  }

[zhujiayu03]

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