src/misc/TopKHeap.py

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Last update: 2023-07-16 15:47:36+09:00
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Depends on

src/misc/DeletableHeapq.py

Verified with

src/$tests/misc/TopKHeap.test.py

Code

from src.misc.DeletableHeapq import DeletableHeapq


class TopKHeap:
    def __init__(self, K, reverse=False, A=None):
        self.K = K
        if not reverse:
            self.upp = DeletableHeapq()
            self.low = DeletableHeapq(reverse=True)
        else:
            self.upp = DeletableHeapq(reverse=True)
            self.low = DeletableHeapq()

        if A is not None:
            for a in A:
                self.push(a)

    def __len__(self):
        return len(self.upp) + len(self.low)

    @property
    def tot(self):
        return self.upp.tot

    @property
    def sum(self):
        return self.upp.sum

    def push(self, x):
        self.upp.push(x)
        if len(self.upp) > self.K:
            self.low.push(self.upp.pop())

    def remove(self, x):
        if len(self.low) > 0 and x <= self.low[0]:
            self.low.remove(x)
        else:
            self.upp.remove(x)
            if len(self.low) > 0:
                self.upp.push(self.low.pop())

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