Bertie Wooles BertZZ
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| def find_oxygen(data) | |
| input = data.clone | |
| bits = input[0].length | |
| for i in 0..bits - 1 | |
| ones = input.count { |n| n[i] == "1" } | |
| zeros = input.count { |n| n[i] == "0" } | |
| most_common = ones > zeros ? "1" : "0" | |
| most_common = "1" if ones == zeros |