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Codeforces Round #657 (Div. 2) C. Choosing flowers（贪心）
Kanoon 2020-07-20 17:15 阅读:269 评论:3 推荐:0
Codeforces Round #657 (Div. 2) B. Dubious Cyrpto（数论）
Kanoon 2020-07-20 16:45 阅读:264 评论:0 推荐:2
Codeforces Round #656 (Div. 3) C. Make It Good
Kanoon 2020-07-18 01:04 阅读:273 评论:0 推荐:0
Codeforces Round #603 (Div. 2) C. Everyone is a Winner!（数论）
Kanoon 2020-06-30 23:30 阅读:122 评论:0 推荐:0
Codeforces Round #651 (Div. 2) D. Odd-Even Subsequence（二分）
Kanoon 2020-06-21 18:05 阅读:258 评论:0 推荐:0
Codeforces Round #651 (Div. 2) E. Binary Subsequence Rotation（dp）
Kanoon 2020-06-21 13:35 阅读:269 评论:0 推荐:0
Educational Codeforces Round 88 (Rated for Div. 2) C. Mixing Water（数学/二分）
Kanoon 2020-05-29 09:35 阅读:253 评论:4 推荐:0
Educational Codeforces Round 75 (Rated for Div. 2)
Kanoon 2020-05-21 23:00 阅读:163 评论:0 推荐:0
Educational Codeforces Round 77 (Rated for Div. 2)
Kanoon 2020-05-19 18:20 阅读:148 评论:0 推荐:0