Simple exercise

[Thomas 'PointedEars' Lahn]

Thomas 'PointedEars' Lahn wrote:

>     od = OrderedDict()

This is pointless, then.

>     […]
>     od = OrderedDict(map(lambda item: (item[0], 0), items))
>     for item in items: od[item[0]] += item[1]

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PointedEars

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