Library-Python

This documentation is automatically generated by online-judge-tools/verification-helper

View the Project on GitHub Rin204/Library-Python

expansion/$tests/data_structure/UnionFind.test.py

Code

# verification-helper: PROBLEM https://judge.yosupo.jp/problem/unionfind

from pathlib import Path
import sys

sys.path.append(str(Path(__file__).resolve().parent.parent.parent.parent))


class UnionFind:
    def __init__(self, n):
        self.n = n
        self.par = [-1] * n
        self.group_ = n

    def find(self, x):
        if self.par[x] < 0:
            return x
        lst = []
        while self.par[x] >= 0:
            lst.append(x)
            x = self.par[x]
        for y in lst:
            self.par[y] = x
        return x

    def unite(self, x, y):
        x = self.find(x)
        y = self.find(y)
        if x == y:
            return False

        if self.par[x] > self.par[y]:
            x, y = y, x

        self.par[x] += self.par[y]
        self.par[y] = x
        self.group_ -= 1
        return True

    def size(self, x):
        return -self.par[self.find(x)]

    def same(self, x, y):
        return self.find(x) == self.find(y)

    @property
    def group(self):
        return self.group_


n, Q = map(int, input().split())
UF = UnionFind(n)
ans = []
for _ in range(Q):
    t, x, y = map(int, input().split())
    if t == 0:
        UF.unite(x, y)
    else:
        if UF.same(x, y):
            ans.append(1)
        else:
            ans.append(0)

print(*ans, sep="\n")
Traceback (most recent call last):
  File "/opt/hostedtoolcache/Python/3.11.4/x64/lib/python3.11/site-packages/onlinejudge_verify/documentation/build.py", line 81, in _render_source_code_stat
    bundled_code = language.bundle(
                   ^^^^^^^^^^^^^^^^
  File "/opt/hostedtoolcache/Python/3.11.4/x64/lib/python3.11/site-packages/onlinejudge_verify/languages/python.py", line 108, in bundle
    raise NotImplementedError
NotImplementedError
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