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9 lines
235 B
Python
9 lines
235 B
Python
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def check_duplicates(elt, tab):
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#@ ensures result == occurrence(elt, tab, 0, len(tab))
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nb = 0
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for e in tab:
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#@ invariant nb == occurrence(elt, tab, 0, e'index)
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if e == elt:
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nb += 1
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return nb
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