Open hk-cnyali opened 4 years ago
https://hk-cnyali.com/2019/09/08/%E3%80%8CCF1217F%E3%80%8DForced-Online-Queries-Problem-%E7%BA%BF%E6%AE%B5%E6%A0%91%E5%88%86%E6%B2%BB-%E5%8F%AF%E6%92%A4%E9%94%80%E5%B9%B6%E6%9F%A5%E9%9B%86/
https://hk-cnyali.com/2019/09/08/%E3%80%8CCF1217F%E3%80%8DForced-Online-Queries-Problem-%E7%BA%BF%E6%AE%B5%E6%A0%91%E5%88%86%E6%B2%BB-%E5%8F%AF%E6%92%A4%E9%94%80%E5%B9%B6%E6%9F%A5%E9%9B%86/