a short python solution


  • 0
    class Solution(object):
        def thirdMax(self, a):
            x, y, z = a[0], float('-inf'), float('-inf')
            for e in a:
                if e > x: x, y, z = e, x, y
                elif y < e < x: y, z = e, y
                elif z < e < y: z = e
            return z if x != y != z and z != float('-inf') else x
    

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