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Outline

•  contract AirdropTool *
•    - function airdropTokens(
•    - function sendBundleETH(

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/**
 *Submitted for verification at Etherscan.io on 2024-07-16
*/

pragma solidity 0.8.26;

contract AirdropTool {

    /**
     * @notice Airdrop ERC20 tokens to a list of addresses
     * @param _token The address of the ERC20 contract
     * @param _addresses The addresses to airdrop to
     * @param _amounts The amounts to airdrop
     * @param _totalAmount The total amount to airdrop
     */
    function airdropTokens(
        address _token,
        address[] calldata _addresses,
        uint256[] calldata _amounts,
        uint256 _totalAmount
    ) external payable {
        assembly {
            // Check that the number of addresses matches the number of amounts
            if iszero(eq(_amounts.length, _addresses.length)) {
                revert(0, 0)
            }

            // transferFrom(address from, address to, uint256 amount)
            mstore(0x00, hex"23b872dd")
            // from address
            mstore(0x04, caller())
            // to address (this contract)
            mstore(0x24, address())
            // total amount
            mstore(0x44, _totalAmount)

            // transfer total amount to this contract
            if iszero(call(gas(), _token, 0, 0x00, 0x64, 0, 0)){
                revert(0, 0)
            }

            // transfer(address to, uint256 value)
            mstore(0x00, hex"a9059cbb")

            // end of array
            let end := add(_addresses.offset, shl(5, _addresses.length))
            // diff = _addresses.offset - _amounts.offset
            let diff := sub(_addresses.offset, _amounts.offset)

            // Loop through the addresses
            for { let addressOffset := _addresses.offset } 1 {} {
                // to address
                mstore(0x04, calldataload(addressOffset))
                // amount
                mstore(0x24, calldataload(sub(addressOffset, diff)))
                // transfer the tokens
                if iszero(call(gas(), _token, 0, 0x00, 0x64, 0, 0)){
                    revert(0, 0)
                }
                // increment the address offset
                addressOffset := add(addressOffset, 0x20)
                // if addressOffset >= end, break
                if iszero(lt(addressOffset, end)) { break }
            }
        }
    }

    /**
     * @notice Airdrop ETH to a list of addresses
     * @param _addresses The addresses to airdrop to
     * @param _amounts The amounts to airdrop
     */
    function sendBundleETH(
        address[] calldata _addresses,
        uint256[] calldata _amounts
    ) external payable {
        assembly {
            // Check that the number of addresses matches the number of amounts
            if iszero(eq(_amounts.length, _addresses.length)) {
                revert(0, 0)
            }

            // iterator
            let i := _addresses.offset
            // end of array
            let end := add(i, shl(5, _addresses.length))
            // diff = _addresses.offset - _amounts.offset
            let diff := sub(_amounts.offset, _addresses.offset)

            // Loop through the addresses
            for {} 1 {} {
                // transfer the ETH
                if iszero(
                    call(gas(), calldataload(i), calldataload(add(i, diff)), 0x00, 0x00, 0x00, 0x00)
                ) { revert(0x00, 0x00) }
                // increment the iterator
                i := add(i, 0x20)
                // if i >= end, break
                if eq(end, i) { break }
            }
        }
    }
}

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[{"inputs":[{"internalType":"address","name":"_token","type":"address"},{"internalType":"address[]","name":"_addresses","type":"address[]"},{"internalType":"uint256[]","name":"_amounts","type":"uint256[]"},{"internalType":"uint256","name":"_totalAmount","type":"uint256"}],"name":"airdropTokens","outputs":[],"stateMutability":"payable","type":"function"},{"inputs":[{"internalType":"address[]","name":"_addresses","type":"address[]"},{"internalType":"uint256[]","name":"_amounts","type":"uint256[]"}],"name":"sendBundleETH","outputs":[],"stateMutability":"payable","type":"function"}]

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ipfs://51ae39e4a72bbd7882abf1706e6c1c10dcbc41ea54bffb034e08a3dfb247577c