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[2025-04-03] gwangseok #452 #454

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[2025-04-03] gwangseok #452 #454

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d526dfb
Create 4195 gwangsk.py
c0natus Apr 2, 2025
c3ce3d4
Create 4195 gwangseok.py
c0natus Apr 2, 2025
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41 changes: 41 additions & 0 deletions BaekJoon/4195/gwangseok.py
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Original file line number Diff line number Diff line change
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import sys
input = sys.stdin.readline

from collections import defaultdict


def find(root, p1):
if root[p1] == p1:
return p1
return find(root, root[p1])


def union(network, root, p1, p2):
p1 = find(root, p1)
p2 = find(root, p2)

if p1 > p2:
root[p1] = p2
network[p2] += network[p1]
del network[p1]
print(network[p2])
elif p1 == p2:
print(network[p1])
else:
root[p2] = p1
network[p1] += network[p2]
del network[p2]
print(network[p1])



for _ in range(int(input())):
network = defaultdict(lambda : 1)
root = {}
for _ in range(int(input())):
p1, p2 = input().split()

if p1 not in root: root[p1] = p1
if p2 not in root: root[p2] = p2

union(network, root, p1, p2)