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competitive/python/union_find.py

• View this file on GitHub
• Last update: 2023-02-16 23:48:21+09:00

Code

class UnionFindTree:
    def __init__(self, N):
        self.parents = [-1] * N
        return

    def flush(self):
        tree = [(i, self.parents[i]) for i in range(len(self.parents))]
        print(*tree)

    def root(self, x):
        r = x
        while self.parents[r] >= 0:
            r = self.parents[r]
        return r

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

    def merge(self, x, y):
        rx = self.root(x)
        ry = self.root(y)
        if rx == ry:
            return
        if self.parents[rx] > self.parents[ry]:
            rx, ry = ry, rx
        self.parents[rx] += self.parents[ry]
        self.parents[ry] = rx
        return

Traceback (most recent call last):
  File "/opt/hostedtoolcache/Python/3.11.3/x64/lib/python3.11/site-packages/onlinejudge_verify/documentation/build.py", line 71, in _render_source_code_stat
    bundled_code = language.bundle(stat.path, basedir=basedir, options={'include_paths': [basedir]}).decode()
                   ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
  File "/opt/hostedtoolcache/Python/3.11.3/x64/lib/python3.11/site-packages/onlinejudge_verify/languages/python.py", line 96, in bundle
    raise NotImplementedError
NotImplementedError

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