intersection of two lists python
>>> a = [1,2,3,4,5]
>>> b = [1,3,5,6]
>>> list(set(a) & set(b))
[1, 3, 5]intersection of two lists python
>>> a = [1,2,3,4,5]
>>> b = [1,3,5,6]
>>> list(set(a) & set(b))
[1, 3, 5]python get the intersection of two lists
# intersection of two lists (lst1 & lst2)
In [1]: x = ["a", "b", "c", "d", "e"]
In [2]: y = ["f", "g", "h", "c", "d"]
In [3]: set(x).intersection(y)
Out[3]: {'c', 'd'}
# has_intersection = bool(set(x).intersection(y)) -> Trueintersection of 3 array in O(n) python
def intersection(A, B, C):
'''
Intersection of 3 array in O(n).
'''
i = j = k = 0
len1 = len(A)
len2 = len(B)
len3 = len(C)
while (i < len1 and j < len2 and k< len3):
if (A[i] == B[j] and B[j] == C[k]):
print(A[i])
i += 1
j += 1
k += 1
elif A[i] < B[j]:
i += 1
elif B[j] < C[k]:
j += 1
else:
k += 1Copyright © 2021 Codeinu
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