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2 questions
0
votes
1
answer
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Handing over an address in solidity an saving it
pragma solidity 0.5.1;
contract WissenschaftlicheArbeit {
string titel;
string autor;
string pfad;
string hashcode;
bool isSignt = false;
address adresseDesPruefers;
...
2
votes
1
answer
341
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How to store addresses of incoming transactions and delete them afterwards
I'm building a basic "lottery" where you send 1 ether to a smart contract, I save your address, and after 5 transactions I randomly choose one of the 5 addresses and send the 5 ethers to the "winner".
...