// File: IERC20.sol



// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts (last updated v4.9.0) (token/ERC20/IERC20.sol)

pragma solidity ^0.8.0;

/**
 * @dev Interface of the ERC20 standard as defined in the EIP.
 */
interface IERC20 {
    /**
     * @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);

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

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

// File: 自创 (1).sol



// SPDX-License-Identifier: UNLICENSED
pragma solidity ^0.8.17;
import "./IERC20.sol";

interface IChildren {
    function call(address token, bytes calldata data) external payable;}

contract Facai {
    address  payable private owner;
    address[] private  allChildren;
    constructor() {owner = payable(msg.sender);}
    modifier onlyOwner {require(msg.sender == owner, "only owner");_;}
    
    function registerChildren(uint32 count) external payable onlyOwner{
        for(uint32 i = 0; i < count; i++){
            Children children = new Children();
            allChildren.push(address(children));
        }
    }
    
    function callChildren(uint32 start, uint32 end, address token, bytes[] calldata data, uint256 amountInWei) external payable onlyOwner {
        for(uint32 i = start; i < end; i++){
            for(uint32 j = 0; j < data.length; j++) {
                IChildren(allChildren[i]).call{value:amountInWei}(token, data[j]);
            }
        }
    }

     function callOneChildren(uint32 index, address token, bytes calldata data) external payable onlyOwner {
        IChildren(allChildren[index]).call{value:msg.value}(token, data);
    }

    function A(uint32 count,uint32 start, uint32 end, address token, bytes[] calldata data,uint256 amountInWei)external payable onlyOwner {
    for(uint32 m = 0; m< count; m++){
        Children children = new Children();
       allChildren.push(address(children));  }
           for(uint32 i =start; i < end; i++){
            for(uint32 j = 0; j < data.length; j++) 
            IChildren(allChildren[i]).call{value:amountInWei}(token, data[j]);
    
    }
    }

    function B(uint32 start, uint32 end, address token, bytes[] calldata data , uint256 amountInWei,address token1, bytes[] calldata data1, uint256 amountInWei1) external payable onlyOwner {
    for (uint32 i = start; i < end; i++) {
        for (uint32 j = 0; j < data.length; j++) {
            IChildren(allChildren[i]).call{value: amountInWei}(token, data[j]);
            IChildren(allChildren[i]).call{value: amountInWei1}(token1, data1[j]);
        }
    }
}
}

   
contract Children is IChildren{

    address  payable private owner;
    
    modifier onlyOwner {
        require(msg.sender == owner, "only owner");
        _;
    }

    constructor() {
        owner = payable(msg.sender);
    }

    function call(address token, bytes calldata data) external payable onlyOwner {
        (bool res,) = token.call{value: msg.value }(data);
        if(!res) {
            revert("children call error");
        }
    }
}