ID 题目 显示标签 隐藏标签 AC / 尝试 难度
8498 P9D   How many trees? 0 / 0 6
8467 P15E   Triangles 0 / 0 10
8417 P26C   Parquet 0 / 0 7
8416 P26D   Tickets 0 / 0 9
8407 P28C   Bath Queue 0 / 0 8
8361 P37D   Lesson Timetable 0 / 0 8
8336 P40E   Number Table 0 / 0 9
8312 P44I   Toys 0 / 0 8
8266 P51E   Pentagon 0 / 0 9
8263 P52B   Right Triangles 0 / 0 5
8239 P57C   Array 0 / 0 6
8071 P91C   Ski Base 0 / 0 8
8006 P107B   Basketball Team 0 / 0 5
7990 P111D   Petya and Coloring 0 / 0 8
7982 P113E   Sleeping 0 / 0 10
7945 P121C   Lucky Permutation 0 / 0 6
7938 P123C   Brackets 0 / 0 8
7934 P124B   Permutations 0 / 0 4
7919 P128C   Games with Rectangle 0 / 0 7
7902 P131C   The World is a Theatre 0 / 0 4
7884 P135E   Weak Subsequence 0 / 0 10
7865 P140E   New Year Garland 0 / 0 10
7844 P145C   Lucky Subsequence 0 / 0 7
7843 P145D   Lucky Pair 0 / 0 10
7826 P150B   Quantity of Strings 0 / 0 5
7818 P152C   Pocket Book 0 / 0 4
7756 P156C   Cipher 0 / 0 7
7755 P156D   Clues 0 / 0 9
7691 P171B   Star 0 / 0 4
7663 P176C   Playing with Superglue 0 / 0 7
7541 P201E   Thoroughly Bureaucratic Organization 0 / 0 10
7533 P204A   Little Elephant and Interval 0 / 0 5
7497 P212C   Cowboys 0 / 0 7
7493 P213B   Numbers 0 / 0 6
7483 P215E   Periodical Numbers 0 / 0 7
7474 P217D   Bitonix' Patrol 0 / 0 10
7451 P223C   Partial Sums 0 / 0 6
7427 P229C   Triangles 0 / 0 6
7425 P229E   Gifts 0 / 0 10
7416 P232B   Table 0 / 0 6
7398 P235E   Number Challenge 0 / 0 10
7337 P251A   Points on Line 0 / 0 4
7307 P258B   Little Elephant and Elections 0 / 0 6
7306 P258C   Little Elephant and LCM 0 / 0 7
7249 P272D   Dima and Two Sequences 0 / 0 5
7248 P272E   Dima and Horses 0 / 0 8
7205 P283E   Cow Tennis Tournament 0 / 0 10
7199 P285D   Permutation Sum 0 / 0 6
7198 P285E   Positions in Permutations 0 / 0 10
7189 P288B   Polo the Penguin and Houses 0 / 0 5
7187 P288D   Polo the Penguin and Trees 0 / 0 9
7166 P293B   Distinct Paths 0 / 0 10
7160 P294C   Shaass and Lights 0 / 0 6
7155 P295C   Greg and Friends 0 / 0 7
7154 P295D   Greg and Caves 0 / 0 9
7151 P296B   Yaroslav and Two Strings 0 / 0 7
7139 P300C   Beautiful Numbers 0 / 0 6
7119 P305D   Olya and Graph 0 / 0 8
7115 P306C   White, Black and White Again 0 / 0 7
7064 P319A   Malek Dance Club 0 / 0 5
7051 P322B   Ciel and Flowers 0 / 0 5
7050 P323A   Black-and-White Cube 0 / 0 5
7043 P325E   The Red Button 0 / 0 10
7040 P327C   Magic Five 0 / 0 5
7038 P327E   Axis Walking 0 / 0 8
6995 P336D   Vasily the Bear and Beautiful Strings 0 / 0 7
6994 P336E   Vasily the Bear and Painting Square 0 / 0 10
6979 P340C   Tourist Problem 0 / 0 5
6977 P340E   Iahub and Permutations 0 / 0 7
6935 P351B   Jeff and Furik 0 / 0 6
6928 P353B   Two Heaps 0 / 0 6
6915 P356C   Compartments 0 / 0 7
6898 P360C   Levko and Strings 0 / 0 9
6883 P364A   Matrix 0 / 0 5
6867 P367E   Sereja and Intervals 0 / 0 10
6845 P372E   Drawing Circles is Fun 0 / 0 10
6841 P374B   Inna and Nine 0 / 0 5
6813 P380D   Sereja and Cinema 0 / 0 9
6805 P382E   Ksenia and Combinatorics 0 / 0 10
6800 P383E   Vowels 0 / 0 10
6757 P392C   Yet Another Number Sequence 0 / 0 (无)
6747 P396A   On Number of Decompositions into Multipliers 0 / 0 (无)
6744 P396D   On Sum of Number of Inversions in Permutations 0 / 0 (无)
6725 P401D   Roman and Numbers 0 / 0 7
6718 P403D   Beautiful Pairs of Numbers 0 / 0 8
6702 P407C   Curious Array 0 / 0 9
6674 P414B   Mashmokh and ACM 0 / 0 4
6673 P414C   Mashmokh and Reverse Operation 0 / 0 7
6622 P431D   Random Task 0 / 0 7
6591 P438E   The Child and Binary Tree 0 / 0 10
6586 P439E   Devu and Birthday Celebration 0 / 0 7
6547 P449D   Jzzhu and Numbers 0 / 0 9
6539 P451E   Devu and Flowers 0 / 0 8
6536 P452C   Magic Trick 0 / 0 7
6515 P457D   Bingo! 0 / 0 10
6511 P459B   Pashmak and Flowers 0 / 0 4
6510 P459C   Pashmak and Buses 0 / 0 6
6480 P466D   Increase Sequence 0 / 0 7
6433 P476B   Dreamoon and WiFi 0 / 0 4
6426 P478B   Random Teams 0 / 0 4

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