Codeforces – 167B – Wizards and Huge Prize

CodeForces – 1623D – Robot Cleaner Revisit

洛谷 – P4562 – [JXOI2018]游戏

CodeForces – 626E – Simple Skewness

洛谷 – P7835 -「Wdoi-3」夜雀 dreaming

CodeForces – 1089F – Fractions

密码保护：ZROI – 21CSP7连测 – Day1 – T4 – 解谜

洛谷 – P4147 – 玉蟾宫

2021牛客OI赛前集训营-提高组-Day1-C 与巨

CodeForces – 1495A – Diamond Miner