2020牛客暑期多校训练营（第四场）——H

Harder Gcd Problem 时间限制：C/C++ 1秒，其余语言2秒 空间限制：C/C++ 262144K，其余语言524288K Special Judge, 64bit IO Format: %lldc++ 题目描述 After solving the Basic Gcd Problem, ZYB gives you a more difficult one:web Given an

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