Created
December 26, 2016 04:02
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| N = gets.to_i | |
| nums = gets.split.map(&:to_i) | |
| cnt = 0; | |
| nums.each_with_index{|num, i| | |
| nums_dup = nums.dup #浅いコピー | |
| nums_dup.delete_at(i) | |
| cnt += 1 if nums_dup.find{|n| n + num == 256} | |
| } | |
| puts cnt > 0 ? "yes" : "no" |
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