Python 中两个数组的交集(Lambda 表达式和过滤函数)
原文:https://www . geesforgeks . org/intersection-two-array-python-lambda-expression-filter-function/
给定两个数组，找到它们的交集。
示例:
Input: arr1[] = [1, 3, 4, 5, 7]
arr2[] = [2, 3, 5, 6]
Output: Intersection : [3, 5]
这个问题我们已经有了解决方案，请参考两个数组的交集链接。我们将在 python 中使用 Lambda 表达式和 filter() 函数快速解决这个问题。
# Function to find intersection of two arrays
def interSection(arr1,arr2):
# filter(lambda x: x in arr1, arr2) -->
# filter element x from list arr2 where x
# also lies in arr1
result = list(filter(lambda x: x in arr1, arr2))
print ("Intersection : ",result)
# Driver program
if __name__ == "__main__":
arr1 = [1, 3, 4, 5, 7]
arr2 = [2, 3, 5, 6]
interSection(arr1,arr2)
输出:
Intersection : [3, 5]
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