Cudos contest - AlleyCat's results

You can save 3500~ gas per call by removing nonReentrant and fixing your reentrancy issues.

function sendToCosmos(
		address _tokenContract,
		bytes32 _destination,
		uint256 _amount
	) public {
                state_lastEventNonce = state_lastEventNonce.add(1);
		IERC20(_tokenContract).safeTransferFrom(msg.sender, address(this), _amount);
    
		emit SendToCosmosEvent(
			_tokenContract,
			msg.sender,
			_destination,
			_amount,
			state_lastEventNonce
		);
	}

same for submitBatch, submitLogicCall, updateValset, logicBatch