分类 - 题解
2025
CF2066E Tropical Season 题解
LOJ6077 「2017 山东一轮集训 Day7」逆序对
QOJ9904 最小生成树 题解
2024
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[ARC068E] Snuke Line 解题报告
2023
区间涂色三问
Codeforces Round 893 (Div. 2) A–E2
Codeforces Round 892 (Div. 2) A–D
AtCoder Beginner Contest 314 A–G
Codeforces Round 891 (Div. 3) A–G
Codeforces Round 890 (Div. 2) A–E1
AtCoder Beginner Contest 313 A–F
AtCoder Beginner Contest 312 A–F
Codeforces Round 889 (Div. 2) A–D
Codeforces Round 888 (Div. 3) A–G
Codeforces Round 887 (Div. 2) A–D
AtCoder Beginner Contest 311 A–F
Codeforces Round 886 (Div. 4) A–H
Codeforces Round 885 (Div. 2) A–E
AtCoder Beginner Contest 310 A–F
Codeforces Round 884 (Div. 1 + Div. 2) A–E
Codeforces Round 883 (Div. 3) A–G
Codeforces Round 882 (Div. 2) A–D
AtCoder Beginner Contest 308
蓝书 1.1 问题求解策略 习题题解
AtCoder Beginner Contest 306
Codeforces Round 878 (Div. 3)
Codeforces Round 876 (Div. 2)
DP 30题（下）
DP 30题（中）
DP 30题（上）
NOIP2022 T3 建造军营
IOI2022 D2T1 数字电路