Check common element in tuples

[PUP280]

That's awesome, thank you !

The good answer, for my need, was this one :

def find_matches(tuples):
    result = [False]  # <- Was incorrectly set to True
    for i in range(len(tuples)-1):
        pair = list(set(tuples[i])) + list(set(tuples[i+1]))  // Protect against duplicates in a list
        result.append(len(set(pair)) != len(pair))  # And corresponding error here.
    return result
                     
print(find_matches([(45,50,30,21), (30,9,56,3), (57,10,21,4), (41,30,50,56)]))

Thank you again.