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Codeforces Round #767 (Div. 2) C. Meximum Array(主席树/整活解法)
题库—Codeforces比赛
数据结构—主席树
Codeforces Round #611 (Div. 3) D
题库—Codeforces比赛
Codeforces Round #774 (Div. 2) C. Factorials and Powers of Two(暴力/dfs/位运算)
题库—Codeforces比赛
算法基础—位运算
算法基础—暴力枚举剪枝
Educational Codeforces Round 22 E. Army Creation(主席树)
题库—Codeforces比赛
数据结构—主席树
Educational Codeforces Round 121 (Rated for Div. 2) ABC(区间求并)
题库—Codeforces比赛
算法基础—贪心
算法基础—STL
Educational Codeforces Round 122 (Rated for Div. 2) ABCD
题库—Codeforces比赛
动态规划—线性DP背包问题
算法基础—思维题
Codeforces Round #769 (Div. 2) ABCD
题库—Codeforces比赛
数据结构—线段树树状数组
数学—异或相关
2021-2022 ICPC, NERC, Northern Eurasia Onsite I. Interactive Treasure Hunt(交互)
题库—Codeforces比赛
交互题
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