Open hk-cnyali opened 4 years ago
https://hk-cnyali.com/2019/09/29/%E3%80%8CCometOJ%E3%80%8D%E6%A8%A1%E6%8B%9F%E8%B5%9B%E6%B5%8B%E8%AF%95-Day2-Solution/
https://hk-cnyali.com/2019/09/29/%E3%80%8CCometOJ%E3%80%8D%E6%A8%A1%E6%8B%9F%E8%B5%9B%E6%B5%8B%E8%AF%95-Day2-Solution/