└── 121


/121:
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1 | def check_duplicate(lst):
2 |     return len(lst) != len(set(lst))
3 | check_duplicate([1,2,3,4,5,4,6]) # True
4 | check_duplicate([1,2,3]) # False
5 | check_duplicate([1,2,3,4,9]) # False
6 | 


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