Re: My friend created A Quantum computer

such computers are still not very soon to be created, you can bravely carry out and not even think about it

But you're aware that there are already quantum computers? IBM even provides public access to 16 qubit device (20 qubits "AVAILABLE TO HUBS, PARTNERS, AND MEMBERS OF THE IBM Q NETWORK").
https://www.research.ibm.com/ibm-q/?cm_mc_uid=43455927292215328868298&cm_mc_sid_50200000=77057811532886829803