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3. In order to get the absolute value of int (keccak256 (...)), you can implement an auxiliary function in your contract: function abs (int x) private pure returns (int) { return x >= 0 ? x : -x; } And then use abs (int (keccak256 (...))). However, I do not quite see why you (or anyone else for that matter) would be interested in converting the ...
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