学生自编题目合集

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是的，你没有看错！这就是学生自编题目合集，学生自编的题目都会被囊括其中！

Section 1. 最初的最初

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Problem Tried AC Difficulty
1483   四则运算 26 4 1
1487   四则运算进阶 123 3 2
 
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