ID 题目 显示标签 隐藏标签 AC / 尝试 难度
4451 codeforces#P620F  Xors on Segments 0 / 0 10
4441 codeforces#P622E  Ants in Leaves 0 / 0 8
4417 codeforces#P627D  Preorder Test 0 / 0 10
4416 codeforces#P627F  Island Puzzle 0 / 0 10
4404 codeforces#P629E  Famil Door and Roads 0 / 0 8
4375 codeforces#P632F  Magic Matrix 0 / 1 9
4369 codeforces#P633F  The Chocolate Spree 0 / 0 10
4358 codeforces#P638C  Road Improvement 0 / 0 6
4355 codeforces#P639B  Bear and Forgotten Tree 3 0 / 0 5
4351 codeforces#P639F  Bear and Chemistry 0 / 0 10
4339 codeforces#P643E  Bear and Destroying Subtrees 1 / 1 10
4322 codeforces#P650E  Clockwork Bomb 0 / 0 10
4315 codeforces#P652E  Pursuit For Artifacts 0 / 0 8
4309 codeforces#P653E  Bear and Forgotten Tree 2 0 / 0 9
4266 codeforces#P665E  Beautiful Subarrays 1 / 6 7
4236 codeforces#P675D  Tree Construction 0 / 0 6
4206 codeforces#P681D  Gifts by the List 0 / 0 7
4202 codeforces#P682C  Alyona and the Tree 0 / 0 5
4187 codeforces#P685B  Kay and Snowflake 3 / 3 6
4162 codeforces#P690C2  Brain Network (medium) 0 / 0 5
4161 codeforces#P690C3  Brain Network (hard) 0 / 0 8
4154 codeforces#P690F2  Tree of Life (medium) 0 / 0 10
4153 codeforces#P690F3  Tree of Life (hard) 0 / 0 10
4146 codeforces#P696A  Lorenzo Von Matterhorn 0 / 0 5
4145 codeforces#P696B  Puzzles 0 / 0 5
4142 codeforces#P696E  ...Wait for it... 0 / 0 10
4137 codeforces#P698B  Fix a Tree 0 / 0 5
4129 codeforces#P700B  Connecting Universities 0 / 0 6
4107 codeforces#P704E  Iron Man 2 / 20 10
4101 codeforces#P706D  Vasiliy's Multiset 1 / 6 6
4092 codeforces#P708C  Centroids 1 / 2 8
4062 codeforces#P715C  Digit Tree 0 / 2 10
4045 codeforces#P718D  Andrew and Chemistry 0 / 0 10
4028 codeforces#P722D  Generating Sets 0 / 0 6
4013 codeforces#P724F  Uniformly Branched Trees 0 / 0 10
4012 codeforces#P724G  Xor-matic Number of the Graph 0 / 0 10
3961 codeforces#P733F  Drivers Dissatisfaction 0 / 0 8
3957 codeforces#P734E  Anton and Tree 0 / 0 7
3950 codeforces#P735E  Ostap and Tree 0 / 0 9
3944 codeforces#P739B  Alyona and a tree 1 / 2 6
3935 codeforces#P741D  Arpa’s letter-marked tree and Mehrdad’s Dokhtar-kosh paths 3 / 8 10
3928 codeforces#P743D  Chloe and pleasant prizes 0 / 0 6
3912 codeforces#P746G  New Roads 0 / 0 7
3900 codeforces#P748F  Santa Clauses and a Soccer Championship 0 / 0 8
3889 codeforces#P750F  New Year and Finding Roots 0 / 0 10
3880 codeforces#P754E  Dasha and cyclic table 0 / 0 10
3876 codeforces#P755C  PolandBall and Forest 0 / 0 4
3859 codeforces#P757G  Can Bash Save the Day? 0 / 0 10
3854 codeforces#P758E  Broken Tree 0 / 0 10
3825 codeforces#P761E  Dasha and Puzzle 0 / 0 7

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