18 lines
554 B
Python
18 lines
554 B
Python
# https://leetcode.com/problems/find-the-prefix-common-array-of-two-arrays
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from typing import List
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class Solution:
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def findThePrefixCommonArray(self, A: List[int], B: List[int]) -> List[int]:
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result = []
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count = {}
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curr = 0
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for i in range(len(A)):
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count[A[i]] = count.get(A[i], 0) + 1
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if count[A[i]] > 1:
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curr += 1
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count[B[i]] = count.get(B[i], 0) + 1
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if count[B[i]] > 1:
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curr += 1
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result.append(curr)
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return result
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