暑假训练2--模拟

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暑假训练2--模拟

Section 1. 模拟

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Problem Tried AC Difficulty
801   蚱蜢 10 4 9
797   接水问题 5 3 10
789   校门外的灯 21 3 9
800   字符串的展开 6 4 10
802   乒乓球 19 3 9
 
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