ID 题目 显示标签 隐藏标签 AC / 尝试 难度
8932 P9D   How many trees? 0 / 0 6
8901 P15E   Triangles 0 / 0 10
8851 P26C   Parquet 0 / 0 7
8850 P26D   Tickets 0 / 0 9
8841 P28C   Bath Queue 0 / 0 8
8795 P37D   Lesson Timetable 0 / 0 8
8770 P40E   Number Table 0 / 0 9
8746 P44I   Toys 0 / 0 8
8700 P51E   Pentagon 0 / 0 9
8697 P52B   Right Triangles 0 / 0 5
8673 P57C   Array 0 / 0 6
8505 P91C   Ski Base 0 / 0 8
8440 P107B   Basketball Team 0 / 0 5
8424 P111D   Petya and Coloring 0 / 0 8
8416 P113E   Sleeping 0 / 0 10
8379 P121C   Lucky Permutation 0 / 0 6
8372 P123C   Brackets 0 / 0 8
8368 P124B   Permutations 0 / 0 4
8353 P128C   Games with Rectangle 0 / 0 7
8336 P131C   The World is a Theatre 0 / 0 4
8318 P135E   Weak Subsequence 0 / 0 10
8299 P140E   New Year Garland 0 / 0 10
8278 P145C   Lucky Subsequence 0 / 0 7
8277 P145D   Lucky Pair 0 / 0 10
8260 P150B   Quantity of Strings 0 / 0 5
8252 P152C   Pocket Book 0 / 0 4
8235 P156C   Cipher 0 / 0 7
8234 P156D   Clues 0 / 0 9
8170 P171B   Star 0 / 0 4
8142 P176C   Playing with Superglue 0 / 0 7
8020 P201E   Thoroughly Bureaucratic Organization 0 / 0 10
8012 P204A   Little Elephant and Interval 0 / 0 5
7976 P212C   Cowboys 0 / 0 7
7972 P213B   Numbers 0 / 0 6
7962 P215E   Periodical Numbers 0 / 0 7
7953 P217D   Bitonix' Patrol 0 / 0 10
7930 P223C   Partial Sums 0 / 0 6
7906 P229C   Triangles 0 / 0 6
7904 P229E   Gifts 0 / 0 10
7895 P232B   Table 0 / 0 6
7877 P235E   Number Challenge 0 / 0 10
7816 P251A   Points on Line 0 / 0 4
7786 P258B   Little Elephant and Elections 0 / 0 6
7785 P258C   Little Elephant and LCM 0 / 0 7
7728 P272D   Dima and Two Sequences 0 / 0 5
7727 P272E   Dima and Horses 0 / 0 8
7684 P283E   Cow Tennis Tournament 0 / 0 10
7678 P285D   Permutation Sum 0 / 0 6
7677 P285E   Positions in Permutations 0 / 0 10
7668 P288B   Polo the Penguin and Houses 0 / 0 5
7666 P288D   Polo the Penguin and Trees 0 / 0 9
7645 P293B   Distinct Paths 0 / 0 10
7639 P294C   Shaass and Lights 0 / 0 6
7634 P295C   Greg and Friends 0 / 0 7
7633 P295D   Greg and Caves 0 / 0 9
7630 P296B   Yaroslav and Two Strings 0 / 0 7
7618 P300C   Beautiful Numbers 0 / 0 6
7598 P305D   Olya and Graph 0 / 0 8
7594 P306C   White, Black and White Again 0 / 0 7
7543 P319A   Malek Dance Club 0 / 0 5
7530 P322B   Ciel and Flowers 0 / 0 5
7529 P323A   Black-and-White Cube 0 / 0 5
7522 P325E   The Red Button 0 / 0 10
7519 P327C   Magic Five 0 / 0 5
7517 P327E   Axis Walking 0 / 0 8
7474 P336D   Vasily the Bear and Beautiful Strings 0 / 0 7
7473 P336E   Vasily the Bear and Painting Square 0 / 0 10
7458 P340C   Tourist Problem 0 / 0 5
7456 P340E   Iahub and Permutations 0 / 0 7
7414 P351B   Jeff and Furik 0 / 0 6
7407 P353B   Two Heaps 0 / 0 6
7381 P356C   Compartments 0 / 0 7
7364 P360C   Levko and Strings 0 / 0 9
7349 P364A   Matrix 0 / 0 5
7333 P367E   Sereja and Intervals 0 / 0 10
7311 P372E   Drawing Circles is Fun 0 / 0 10
7307 P374B   Inna and Nine 0 / 0 5
7279 P380D   Sereja and Cinema 0 / 0 9
7271 P382E   Ksenia and Combinatorics 0 / 0 10
7266 P383E   Vowels 0 / 0 10
7223 P392C   Yet Another Number Sequence 0 / 0 (无)
7213 P396A   On Number of Decompositions into Multipliers 0 / 0 (无)
7210 P396D   On Sum of Number of Inversions in Permutations 0 / 0 (无)
7191 P401D   Roman and Numbers 0 / 0 7
7184 P403D   Beautiful Pairs of Numbers 0 / 0 8
7168 P407C   Curious Array 0 / 0 9
7140 P414B   Mashmokh and ACM 0 / 0 4
7139 P414C   Mashmokh and Reverse Operation 0 / 0 7
7088 P431D   Random Task 0 / 0 7
7057 P438E   The Child and Binary Tree 0 / 0 10
7052 P439E   Devu and Birthday Celebration 0 / 0 7
7013 P449D   Jzzhu and Numbers 0 / 0 9
7005 P451E   Devu and Flowers 0 / 0 8
7002 P452C   Magic Trick 0 / 0 7
6981 P457D   Bingo! 0 / 0 10
6977 P459B   Pashmak and Flowers 0 / 0 4
6976 P459C   Pashmak and Buses 0 / 0 6
6946 P466D   Increase Sequence 0 / 0 7
6899 P476B   Dreamoon and WiFi 0 / 0 4
6892 P478B   Random Teams 0 / 0 4

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