function LastimeRewardApplicable () public view returns (uint){
   return _min(block.timestamp, FinishTime); // return the timestamp of the last time the reward is still applicable
}



function _min (uint x , uint y ) private pure returns (uint) {
return x <= y ? x:y;
}

function RewardPerCoin () public view returns (uint){
if (totalSupply == 0 ) {
    return RewardPerCoinInvested;
}
  return RewardPerCoinInvested + (RewardRate + (LastimeRewardApplicable() - UpdatedTime) * 1e18)/
  totalSupply;
}


function ClaimReward () external {
 uint  reward = RewardInvestorsEarn[msg.sender];
 if (reward >0 ) {
  RewardInvestorsEarn [msg.sender] = 0;
  Reward_Coin.transfer(msg.sender, reward);
 }
}
function Earned (address _account ) public view  returns (uint) {
       
  return (balanceOf[_account] * (RewardPerToken() - RewardInvestorsEarn[_account]))/1e18 
  + RewardInvestorsEarn[_account];

}