leetcode

Solution to some Leetcode problems written in C++
git clone git://git.dimitrijedobrota.com/leetcode.git
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0626.sql (154B)

      1 SELECT F.id, IFNULL(S.student, F.student) AS student
      2 FROM Seat F
      3 LEFT JOIN Seat S
      4 ON F.id % 2 = 1 AND F.id + 1 = S.id
      5 OR F.id % 2 = 0 AND F.id - 1 = S.id