ID 题目 显示标签 隐藏标签 AC / 尝试 难度
8140 P9D   How many trees? 0 / 0 6
8109 P15E   Triangles 0 / 0 10
8059 P26C   Parquet 0 / 0 7
8058 P26D   Tickets 0 / 0 9
8049 P28C   Bath Queue 0 / 0 8
8003 P37D   Lesson Timetable 0 / 0 8
7978 P40E   Number Table 0 / 0 9
7954 P44I   Toys 0 / 0 8
7908 P51E   Pentagon 0 / 0 9
7905 P52B   Right Triangles 0 / 0 5
7881 P57C   Array 0 / 0 6
7713 P91C   Ski Base 0 / 0 8
7648 P107B   Basketball Team 0 / 0 5
7632 P111D   Petya and Coloring 0 / 0 8
7624 P113E   Sleeping 0 / 0 10
7587 P121C   Lucky Permutation 0 / 0 6
7580 P123C   Brackets 0 / 0 8
7576 P124B   Permutations 0 / 0 4
7561 P128C   Games with Rectangle 0 / 0 7
7544 P131C   The World is a Theatre 0 / 0 4
7526 P135E   Weak Subsequence 0 / 0 10
7507 P140E   New Year Garland 0 / 0 10
7486 P145C   Lucky Subsequence 0 / 0 7
7485 P145D   Lucky Pair 0 / 0 10
7468 P150B   Quantity of Strings 0 / 0 5
7460 P152C   Pocket Book 0 / 0 4
7443 P156C   Cipher 0 / 0 7
7442 P156D   Clues 0 / 0 9
7378 P171B   Star 0 / 0 4
7350 P176C   Playing with Superglue 0 / 0 7
7228 P201E   Thoroughly Bureaucratic Organization 0 / 0 10
7220 P204A   Little Elephant and Interval 0 / 0 5
7184 P212C   Cowboys 0 / 0 7
7180 P213B   Numbers 0 / 0 6
7170 P215E   Periodical Numbers 0 / 0 7
7161 P217D   Bitonix' Patrol 0 / 0 10
7138 P223C   Partial Sums 0 / 0 6
7114 P229C   Triangles 0 / 0 6
7112 P229E   Gifts 0 / 0 10
7103 P232B   Table 0 / 0 6
7085 P235E   Number Challenge 0 / 0 10
7024 P251A   Points on Line 0 / 0 4
6994 P258B   Little Elephant and Elections 0 / 0 6
6993 P258C   Little Elephant and LCM 0 / 0 7
6936 P272D   Dima and Two Sequences 0 / 0 5
6935 P272E   Dima and Horses 0 / 0 8
6892 P283E   Cow Tennis Tournament 0 / 0 10
6886 P285D   Permutation Sum 0 / 0 6
6885 P285E   Positions in Permutations 0 / 0 10
6876 P288B   Polo the Penguin and Houses 0 / 0 5
6874 P288D   Polo the Penguin and Trees 0 / 0 9
6853 P293B   Distinct Paths 0 / 0 10
6847 P294C   Shaass and Lights 0 / 0 6
6842 P295C   Greg and Friends 0 / 0 7
6841 P295D   Greg and Caves 0 / 0 9
6838 P296B   Yaroslav and Two Strings 0 / 0 7
6826 P300C   Beautiful Numbers 0 / 0 6
6806 P305D   Olya and Graph 0 / 0 8
6802 P306C   White, Black and White Again 0 / 0 7
6751 P319A   Malek Dance Club 0 / 0 5
6738 P322B   Ciel and Flowers 0 / 0 5
6737 P323A   Black-and-White Cube 0 / 0 5
6730 P325E   The Red Button 0 / 0 10
6727 P327C   Magic Five 0 / 0 5
6725 P327E   Axis Walking 0 / 0 8
6682 P336D   Vasily the Bear and Beautiful Strings 0 / 0 7
6681 P336E   Vasily the Bear and Painting Square 0 / 0 10
6666 P340C   Tourist Problem 0 / 0 5
6664 P340E   Iahub and Permutations 0 / 0 7
6622 P351B   Jeff and Furik 0 / 0 6
6615 P353B   Two Heaps 0 / 0 6
6602 P356C   Compartments 0 / 0 7
6585 P360C   Levko and Strings 0 / 0 9
6570 P364A   Matrix 0 / 0 5
6554 P367E   Sereja and Intervals 0 / 0 10
6532 P372E   Drawing Circles is Fun 0 / 0 10
6528 P374B   Inna and Nine 0 / 0 5
6500 P380D   Sereja and Cinema 0 / 0 9
6492 P382E   Ksenia and Combinatorics 0 / 0 10
6487 P383E   Vowels 0 / 0 10
6444 P392C   Yet Another Number Sequence 0 / 0 (无)
6434 P396A   On Number of Decompositions into Multipliers 0 / 0 (无)
6431 P396D   On Sum of Number of Inversions in Permutations 0 / 0 (无)
6412 P401D   Roman and Numbers 0 / 0 7
6405 P403D   Beautiful Pairs of Numbers 0 / 0 8
6389 P407C   Curious Array 0 / 0 9
6361 P414B   Mashmokh and ACM 0 / 0 4
6360 P414C   Mashmokh and Reverse Operation 0 / 0 7
6309 P431D   Random Task 0 / 0 7
6278 P438E   The Child and Binary Tree 0 / 0 10
6273 P439E   Devu and Birthday Celebration 0 / 0 7
6234 P449D   Jzzhu and Numbers 0 / 0 9
6226 P451E   Devu and Flowers 0 / 0 8
6223 P452C   Magic Trick 0 / 0 7
6202 P457D   Bingo! 0 / 0 10
6198 P459B   Pashmak and Flowers 0 / 0 4
6197 P459C   Pashmak and Buses 0 / 0 6
6167 P466D   Increase Sequence 0 / 0 7
6120 P476B   Dreamoon and WiFi 0 / 0 4
6113 P478B   Random Teams 0 / 0 4

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