Grokking the Coding Interview: Patterns for Coding Questions
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Problem 2: Largest Unique Number (easy)

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A

Anonymous

· 2 years ago

def largestUniqueNumber(self, A: List[int]) -> int:
        counter = Counter(A)
        max_num = -1
        for num, freq in counter.items():
            if num > max_num and freq == 1:
                max_num = num
        return max_num

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