示例#1
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    def as_dict(self):
        """Return the partition as a dictionary whose keys are the
        partition integers and the values are the multiplicity of that
        integer.

        Examples
        ========

        >>> from sympy.combinatorics.partitions import IntegerPartition
        >>> IntegerPartition([1]*3 + [2] + [3]*4).as_dict()
        {1: 3, 2: 1, 3: 4}
        """
        if self._dict is None:
            groups = group(self.partition, multiple=False)
            self._keys = [g[0] for g in groups]
            self._dict = dict(groups)
        return self._dict
示例#2
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    def as_dict(self):
        """Return the partition as a dictionary whose keys are the
        partition integers and the values are the multiplicity of that
        integer.

        Examples
        ========

        >>> from sympy.combinatorics.partitions import IntegerPartition
        >>> IntegerPartition([1]*3 + [2] + [3]*4).as_dict()
        {1: 3, 2: 1, 3: 4}
        """
        if self._dict is None:
            groups = group(self.partition, multiple=False)
            self._keys = [g[0] for g in groups]
            self._dict = dict(groups)
        return self._dict
示例#3
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def test_group():
    assert group([]) == []
    assert group([], multiple=False) == []

    assert group([1]) == [[1]]
    assert group([1], multiple=False) == [(1, 1)]

    assert group([1, 1]) == [[1, 1]]
    assert group([1, 1], multiple=False) == [(1, 2)]

    assert group([1, 1, 1]) == [[1, 1, 1]]
    assert group([1, 1, 1], multiple=False) == [(1, 3)]

    assert group([1, 2, 1]) == [[1], [2], [1]]
    assert group([1, 2, 1], multiple=False) == [(1, 1), (2, 1), (1, 1)]

    assert group([1, 1, 2, 2, 2, 1, 3, 3]) == [[1, 1], [2, 2, 2], [1], [3, 3]]
    assert group([1, 1, 2, 2, 2, 1, 3, 3], multiple=False) == [(1, 2), (2, 3),
                                                               (1, 1), (3, 2)]
示例#4
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def test_group():
    assert group([]) == []
    assert group([], multiple=False) == []

    assert group([1]) == [[1]]
    assert group([1], multiple=False) == [(1, 1)]

    assert group([1, 1]) == [[1, 1]]
    assert group([1, 1], multiple=False) == [(1, 2)]

    assert group([1, 1, 1]) == [[1, 1, 1]]
    assert group([1, 1, 1], multiple=False) == [(1, 3)]

    assert group([1, 2, 1]) == [[1], [2], [1]]
    assert group([1, 2, 1], multiple=False) == [(1, 1), (2, 1), (1, 1)]

    assert group([1, 1, 2, 2, 2, 1, 3, 3]) == [[1, 1], [2, 2, 2], [1], [3, 3]]
    assert group([1, 1, 2, 2, 2, 1, 3, 3], multiple=False) == [(1, 2),
                 (2, 3), (1, 1), (3, 2)]