union find python
class UnionFind:
def __init__(self) -> None:
super().__init__()
self.representor = {}
def make_set(self, key):
self.representor[key] = key
def find(self, key):
return self.representor[key]
def union(self, x, y):
x_r, y_r = self.find(x), self.find(y)
for k, r in self.representor.items():
if r == y_r:
self.representor[k] = x_rlist union python
set1 = {2, 4, 5, 6}
set2 = {4, 6, 7, 8}
set3 = {7, 8, 9, 10}
# union of two sets
print("set1 U set2 : ", set1.union(set2))
# union of three sets
print("set1 U set2 U set3 :", set1.union(set2, set3))
>>>
set1 U set2 : {2, 4, 5, 6, 7, 8}
set1 U set2 U set3 : {2, 4, 5, 6, 7, 8, 9, 10}Copyright © 2021 Codeinu
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