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webdev

06-05-2010 01:46 AM

how to replace element in difference list of prolog??

hi: want to replace all elements with the number of its depth in the difference list in prolog. such as: ?- deepList([a, [b]], L). L = [0, [1]]. ?- deepList([a, [b, c, [d, e]], f], L). L = [0, [1, 1, [2, 2]], 0]. Thank!

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