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Codeforces Global Round 8 B. Codeforces Subsequences（构造）

Kanoon 2020-06-19 11:00 阅读:386 评论:0 推荐:0

Codeforces Global Round 8 D. AND, OR and square sum（位运算）

Kanoon 2020-06-19 10:15 阅读:288 评论:0 推荐:1

Educational Codeforces Round 89 (Rated for Div. 2) B. Shuffle（数学/双指针）

Kanoon 2020-06-12 11:19 阅读:234 评论:0 推荐:0

Educational Codeforces Round 89 (Rated for Div. 2) A. Shovels and Swords（贪心/数学）

Kanoon 2020-06-12 11:15 阅读:380 评论:0 推荐:1

Codeforces Round #647 (Div. 2) C. Johnny and Another Rating Drop（数学）

Kanoon 2020-06-05 23:16 阅读:214 评论:0 推荐:0

Codeforces Round #646 (Div. 2) A. Odd Selection（数学）

Kanoon 2020-06-01 10:10 阅读:290 评论:0 推荐:0

Educational Codeforces Round 88 (Rated for Div. 2) A. Berland Poker（数学）

Kanoon 2020-05-29 18:46 阅读:281 评论:0 推荐:0

Educational Codeforces Round 88 (Rated for Div. 2) E. Modular Stability（数论）

Kanoon 2020-05-29 18:30 阅读:281 评论:0 推荐:1

Educational Codeforces Round 88 (Rated for Div. 2) C. Mixing Water（数学/二分）

Kanoon 2020-05-29 09:35 阅读:233 评论:4 推荐:0

Educational Codeforces Round 76 (Rated for Div. 2)

Kanoon 2020-05-20 20:35 阅读:192 评论:0 推荐:0

Educational Codeforces Round 77 (Rated for Div. 2)

Kanoon 2020-05-19 18:20 阅读:142 评论:0 推荐:0

Codeforces Round #570 (Div. 3)

Kanoon 2020-05-14 20:34 阅读:179 评论:0 推荐:0