How to distribute ERC-20 Token to 7500 address at once? [duplicate]

Question

I am working on a solidity contract and on each ethereum received in contract, I want to distribute ERC20 token propotional to ether spent in that transaction to 7500 addresses at once.

To do there could be these 2 ways as given below:

1. To transfer them token at the same time.
2. To save that amount so they can claim later. (push/withdraw method)

But in both the ways I will run out of gas.

Any help will be appreciated. Thanks.

Answer 1

you might be able to play with the balanceOf for specific addresses. Essentially the set of addresses you specify would have a starting balance of 0 + x. I think setting the addresses in a single mapping would be considerably cheaper. You might get tot higher amount of "distributions" through this method.