// SPDX-License-Identifier: MIT
pragma solidity >=0.8.0 <0.9.0;

abstract contract Context {
  function _msgSender() internal view virtual returns (address) {
    return msg.sender;
  }
  function _msgData() internal view virtual returns (bytes calldata) {
    return msg.data;
  }
}

interface IERC20 {
  event Transfer(address indexed from, address indexed to, uint256 value);
  event Approval(address indexed owner, address indexed spender, uint256 value);

  function totalSupply() external view returns (uint256);
  function balanceOf(address account) external view returns (uint256);
  function transfer(address to, uint256 amount) external returns (bool);
  function allowance(address owner, address spender) external view returns (uint256);
  function approve(address spender, uint256 amount) external returns (bool);
  function transferFrom(
    address from,
    address to,
    uint256 amount
  ) external returns (bool);
}

library SafeMath {
  function tryAdd(uint256 a, uint256 b) internal pure returns (bool, uint256) {
    uint256 c = a + b;
    if (c < a) return (false, 0);
    return (true, c);
  }

  function trySub(uint256 a, uint256 b) internal pure returns (bool, uint256) {
    if (b > a) return (false, 0);
    return (true, a - b);
  }

  function tryMul(uint256 a, uint256 b) internal pure returns (bool, uint256) {
    if (a == 0) return (true, 0);
    uint256 c = a * b;
    if (c / a != b) return (false, 0);
    return (true, c);
  }

  function tryDiv(uint256 a, uint256 b) internal pure returns (bool, uint256) {
    if (b == 0) return (false, 0);
    return (true, a / b);
  }

  function tryMod(uint256 a, uint256 b) internal pure returns (bool, uint256) {
    if (b == 0) return (false, 0);
    return (true, a % b);
  }

  function add(uint256 a, uint256 b) internal pure returns (uint256) {
    uint256 c = a + b;
    require(c >= a, "SafeMath: addition overflow");
    return c;
  }

  function sub(uint256 a, uint256 b) internal pure returns (uint256) {
    require(b <= a, "SafeMath: subtraction overflow");
    return a - b;
  }

  function mul(uint256 a, uint256 b) internal pure returns (uint256) {
    if (a == 0) return 0;
    uint256 c = a * b;
    require(c / a == b, "SafeMath: multiplication overflow");
    return c;
  }

  function div(uint256 a, uint256 b) internal pure returns (uint256) {
    require(b > 0, "SafeMath: division by zero");
    return a / b;
  }

  function mod(uint256 a, uint256 b) internal pure returns (uint256) {
    require(b > 0, "SafeMath: modulo by zero");
    return a % b;
  }

  function sub(uint256 a, uint256 b, string memory errorMessage) internal pure returns (uint256) {
    require(b <= a, errorMessage);
    return a - b;
  }

  function div(uint256 a, uint256 b, string memory errorMessage) internal pure returns (uint256) {
    require(b > 0, errorMessage);
    return a / b;
  }

  function mod(uint256 a, uint256 b, string memory errorMessage) internal pure returns (uint256) {
    require(b > 0, errorMessage);
    return a % b;
  }
}

contract LQDX is Context, IERC20 {
  using SafeMath for uint256;

  mapping (address => uint256) private _balances;

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

  uint256 private _totalSupply;
  uint256 public maxLimit = 400_000_000_0000_0000_0000_0000_00;

  string private _name = "Liquid Crypto";
  string private _symbol = "LQDX";
  uint8 private _decimals = 18;

  mapping (address => bool) public minter;
  address[] public minterList;
  address public minterSetter;

  modifier onlyMinter() {
    require(minter[msg.sender], "LUSDT: !minter");
    _;
  }

  constructor (address _minterSetter) {
    minterSetter = _minterSetter;
  }

  function name() public view virtual returns (string memory) {
    return _name;
  }

  function symbol() public view virtual returns (string memory) {
    return _symbol;
  }

  function decimals() public view virtual returns (uint8) {
    return _decimals;
  }

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

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

  function transfer(address recipient, uint256 amount) public virtual override returns (bool) {
    _transfer(_msgSender(), recipient, amount);
    return true;
  }

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

  function approve(address spender, uint256 amount) public virtual override returns (bool) {
    _approve(_msgSender(), spender, amount);
    return true;
  }

  function transferFrom(address sender, address recipient, uint256 amount) public virtual override returns (bool) {
    _transfer(sender, recipient, amount);
    _approve(sender, _msgSender(), _allowances[sender][_msgSender()].sub(amount, "LQDX: transfer amount exceeds allowance"));
    return true;
  }

  function increaseAllowance(address spender, uint256 addedValue) public virtual returns (bool) {
    _approve(_msgSender(), spender, _allowances[_msgSender()][spender].add(addedValue));
    return true;
  }

  function decreaseAllowance(address spender, uint256 subtractedValue) public virtual returns (bool) {
    _approve(_msgSender(), spender, _allowances[_msgSender()][spender].sub(subtractedValue, "LQDX: decreased allowance below zero"));
    return true;
  }

  function _transfer(address sender, address recipient, uint256 amount) internal virtual {
    require(sender != address(0), "LQDX: transfer from the zero address");
    require(recipient != address(0), "LQDX: transfer to the zero address");

    _beforeTokenTransfer(sender, recipient, amount);

    _balances[sender] = _balances[sender].sub(amount, "LQDX: transfer amount exceeds balance");
    _balances[recipient] = _balances[recipient].add(amount);
    emit Transfer(sender, recipient, amount);
  }

  function _mint(address account, uint256 amount) internal virtual {
    require(account != address(0), "LQDX: mint to the zero address");

    _beforeTokenTransfer(address(0), account, amount);

    _totalSupply = _totalSupply.add(amount);
    require(_totalSupply <= maxLimit, "LQDX: overflow max limitation");
    _balances[account] = _balances[account].add(amount);
    emit Transfer(address(0), account, amount);
  }

  function _burn(address account, uint256 amount) internal virtual {
    require(account != address(0), "LQDX: burn from the zero address");

    _beforeTokenTransfer(account, address(0), amount);

    _balances[account] = _balances[account].sub(amount, "LQDX: burn amount exceeds balance");
    _totalSupply = _totalSupply.sub(amount);
    emit Transfer(account, address(0), amount);
  }

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

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

  function _beforeTokenTransfer(address from, address to, uint256 amount) internal virtual { }

  function mint(address account, uint256 amount) public onlyMinter {
    _mint(account, amount);
  }

  function burn(address account, uint256 amount) public onlyMinter {
    _burn(account, amount);
  }

  function getAllMinter() public view returns(address[] memory) {
    return minterList;
  }

  function insertMinter(address account) public {
    require(msg.sender == minterSetter, 'LQDX: minterSetter');
    if (minter[account] == false) {
      minter[account] = true;
      minterList.push(account);
    }
  }

  function removeMinter(address account) public {
    require(msg.sender == minterSetter, 'LQDX: minterSetter');
    if (minter[account] == true) {
      minter[account] = false;
      uint256 len = minterList.length;
      for (uint256 x = 0; x < len; x++) {
        if (minterList[x] == account) {
          minterList[x] = minterList[len - 1];
          break;
        }
      }
      minterList.pop();
    }
  }

  function setMinterSetter(address _minterSetter) external {
    require(msg.sender == minterSetter, 'LUSDT: !minterSetter');
    minterSetter = _minterSetter;
  }
}

{
  "compilationTarget": {
    "LQDX.sol": "LQDX"
  },
  "evmVersion": "paris",
  "libraries": {},
  "metadata": {
    "bytecodeHash": "ipfs"
  },
  "optimizer": {
    "enabled": true,
    "runs": 200
  },
  "remappings": []
}