A class wrapping an enrollment of a student into a course. Such an enrollment
consists of a list of classes and a conflict weight. That is a weighted sum
of the student conflicts (with other courses of the student) it creates.
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it under the terms of the GNU Lesser General Public License as
published by the Free Software Foundation; either version 3 of the
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This library is distributed in the hope that it will be useful, but
WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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