Token

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 contract Owned    - function changeOwner(address payable ...    - function acceptOwnership()    - function balanceOf(address _owner)    - function transfer(address _to, uint25 ...    - function transferFrom(address _from, ...    - function approve(address _spender, ui ...    - function allowance(address _owner, ad ...  contract Token is Owned, ERC20    - function balanceOf(address _owner)    - function transfer(address _to, uint25 ...    - function transferFrom(address _from,a ...    - function approve(address _spender, ui ...    - function allowance(address _owner, ad ...  contract CuFi is Token *

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/**
 *Submitted for verification at Etherscan.io on 2021-02-07
*/

pragma solidity ^0.6.7;
// WEBSITE CURIOSITY.FINANCE
contract Owned {
    modifier onlyOwner() {
        require(msg.sender==owner);
        _;
    }
    address payable owner;
    address payable newOwner;
    function changeOwner(address payable _newOwner) public onlyOwner {
        require(_newOwner!=address(0));
        newOwner = _newOwner;
    }
    function acceptOwnership() public {
        if (msg.sender==newOwner) {
            owner = newOwner;
        }
    }
}

abstract contract ERC20 {
    uint256 public totalSupply;
    function balanceOf(address _owner) view public virtual returns (uint256 balance);
    function transfer(address _to, uint256 _value) public virtual returns (bool success);
    function transferFrom(address _from, address _to, uint256 _value) public virtual returns (bool success);
    function approve(address _spender, uint256 _value) public virtual returns (bool success);
    function allowance(address _owner, address _spender) view public virtual returns (uint256 remaining);
    event Transfer(address indexed _from, address indexed _to, uint256 _value);
    event Approval(address indexed _owner, address indexed _spender, uint256 _value);
}

contract Token is Owned,  ERC20 {
    string public symbol;
    string public name;
    uint8 public decimals;
    mapping (address=>uint256) balances;
    mapping (address=>mapping (address=>uint256)) allowed;
    
    function balanceOf(address _owner) view public virtual override returns (uint256 balance) {return balances[_owner];}
    
    function transfer(address _to, uint256 _amount) public virtual override returns (bool success) {
        require (balances[msg.sender]>=_amount&&_amount>0&&balances[_to]+_amount>balances[_to]);
        balances[msg.sender]-=_amount;
        balances[_to]+=_amount;
        emit Transfer(msg.sender,_to,_amount);
        return true;
    }
  
    function transferFrom(address _from,address _to,uint256 _amount) public virtual override returns (bool success) {
        require (balances[_from]>=_amount&&allowed[_from][msg.sender]>=_amount&&_amount>0&&balances[_to]+_amount>balances[_to]);
        balances[_from]-=_amount;
        allowed[_from][msg.sender]-=_amount;
        balances[_to]+=_amount;
        emit Transfer(_from, _to, _amount);
        return true;
    }
  
    function approve(address _spender, uint256 _amount) public virtual override returns (bool success) {
        allowed[msg.sender][_spender]=_amount;
        emit Approval(msg.sender, _spender, _amount);
        return true;
    }
    
    function allowance(address _owner, address _spender) view public virtual override returns (uint256 remaining) {
      return allowed[_owner][_spender];
    }
}

contract CuFi is Token{
    
    constructor() public{
        symbol = "CUFI";
        name = "CURIOSITY FINANCE";
        decimals = 18;
        totalSupply = 50000000000000000000000;  
        owner = msg.sender;
        balances[owner] = totalSupply;
    }
    
    receive () payable external {
        require(msg.value>0);
        owner.transfer(msg.value);
    }
}

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[{"inputs":[],"stateMutability":"nonpayable","type":"constructor"},{"anonymous":false,"inputs":[{"indexed":true,"internalType":"address","name":"_owner","type":"address"},{"indexed":true,"internalType":"address","name":"_spender","type":"address"},{"indexed":false,"internalType":"uint256","name":"_value","type":"uint256"}],"name":"Approval","type":"event"},{"anonymous":false,"inputs":[{"indexed":true,"internalType":"address","name":"_from","type":"address"},{"indexed":true,"internalType":"address","name":"_to","type":"address"},{"indexed":false,"internalType":"uint256","name":"_value","type":"uint256"}],"name":"Transfer","type":"event"},{"inputs":[],"name":"acceptOwnership","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"address","name":"_owner","type":"address"},{"internalType":"address","name":"_spender","type":"address"}],"name":"allowance","outputs":[{"internalType":"uint256","name":"remaining","type":"uint256"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"address","name":"_spender","type":"address"},{"internalType":"uint256","name":"_amount","type":"uint256"}],"name":"approve","outputs":[{"internalType":"bool","name":"success","type":"bool"}],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"address","name":"_owner","type":"address"}],"name":"balanceOf","outputs":[{"internalType":"uint256","name":"balance","type":"uint256"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"address payable","name":"_newOwner","type":"address"}],"name":"changeOwner","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[],"name":"decimals","outputs":[{"internalType":"uint8","name":"","type":"uint8"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"name","outputs":[{"internalType":"string","name":"","type":"string"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"symbol","outputs":[{"internalType":"string","name":"","type":"string"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"totalSupply","outputs":[{"internalType":"uint256","name":"","type":"uint256"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"address","name":"_to","type":"address"},{"internalType":"uint256","name":"_amount","type":"uint256"}],"name":"transfer","outputs":[{"internalType":"bool","name":"success","type":"bool"}],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"address","name":"_from","type":"address"},{"internalType":"address","name":"_to","type":"address"},{"internalType":"uint256","name":"_amount","type":"uint256"}],"name":"transferFrom","outputs":[{"internalType":"bool","name":"success","type":"bool"}],"stateMutability":"nonpayable","type":"function"},{"stateMutability":"payable","type":"receive"}]

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