|
|
7180 |
P9D How many trees?
|
0 / 0 |
(无) |
|
|
7149 |
P15E Triangles
|
0 / 0 |
(无) |
|
|
7099 |
P26C Parquet
|
0 / 0 |
(无) |
|
|
7098 |
P26D Tickets
|
0 / 0 |
(无) |
|
|
7089 |
P28C Bath Queue
|
0 / 0 |
(无) |
|
|
7043 |
P37D Lesson Timetable
|
0 / 0 |
(无) |
|
|
7018 |
P40E Number Table
|
0 / 0 |
(无) |
|
|
6994 |
P44I Toys
|
0 / 0 |
(无) |
|
|
6948 |
P51E Pentagon
|
0 / 0 |
(无) |
|
|
6945 |
P52B Right Triangles
|
0 / 0 |
(无) |
|
|
6921 |
P57C Array
|
0 / 0 |
(无) |
|
|
6753 |
P91C Ski Base
|
0 / 0 |
(无) |
|
|
6688 |
P107B Basketball Team
|
0 / 0 |
(无) |
|
|
6672 |
P111D Petya and Coloring
|
0 / 0 |
(无) |
|
|
6664 |
P113E Sleeping
|
0 / 0 |
(无) |
|
|
6627 |
P121C Lucky Permutation
|
0 / 0 |
(无) |
|
|
6620 |
P123C Brackets
|
0 / 0 |
(无) |
|
|
6616 |
P124B Permutations
|
0 / 0 |
(无) |
|
|
6601 |
P128C Games with Rectangle
|
0 / 0 |
(无) |
|
|
6584 |
P131C The World is a Theatre
|
0 / 0 |
(无) |
|
|
6566 |
P135E Weak Subsequence
|
0 / 0 |
(无) |
|
|
6547 |
P140E New Year Garland
|
0 / 0 |
(无) |
|
|
6526 |
P145C Lucky Subsequence
|
0 / 0 |
(无) |
|
|
6525 |
P145D Lucky Pair
|
0 / 0 |
(无) |
|
|
6508 |
P150B Quantity of Strings
|
0 / 0 |
(无) |
|
|
6500 |
P152C Pocket Book
|
0 / 0 |
(无) |
|
|
6483 |
P156C Cipher
|
0 / 0 |
(无) |
|
|
6482 |
P156D Clues
|
0 / 0 |
(无) |
|
|
6418 |
P171B Star
|
0 / 0 |
(无) |
|
|
6390 |
P176C Playing with Superglue
|
0 / 0 |
(无) |
|
|
6268 |
P201E Thoroughly Bureaucratic Organization
|
0 / 0 |
(无) |
|
|
6260 |
P204A Little Elephant and Interval
|
0 / 0 |
(无) |
|
|
6224 |
P212C Cowboys
|
0 / 0 |
(无) |
|
|
6220 |
P213B Numbers
|
0 / 0 |
(无) |
|
|
6210 |
P215E Periodical Numbers
|
0 / 0 |
(无) |
|
|
6201 |
P217D Bitonix' Patrol
|
0 / 0 |
(无) |
|
|
6178 |
P223C Partial Sums
|
0 / 0 |
(无) |
|
|
6154 |
P229C Triangles
|
0 / 0 |
(无) |
|
|
6152 |
P229E Gifts
|
0 / 0 |
(无) |
|
|
6143 |
P232B Table
|
0 / 0 |
(无) |
|
|
6125 |
P235E Number Challenge
|
0 / 0 |
(无) |
|
|
6064 |
P251A Points on Line
|
0 / 0 |
(无) |
|
|
6034 |
P258B Little Elephant and Elections
|
0 / 0 |
(无) |
|
|
6033 |
P258C Little Elephant and LCM
|
0 / 0 |
(无) |
|
|
5976 |
P272D Dima and Two Sequences
|
0 / 0 |
(无) |
|
|
5975 |
P272E Dima and Horses
|
0 / 0 |
(无) |
|
|
5932 |
P283E Cow Tennis Tournament
|
0 / 0 |
(无) |
|
|
5926 |
P285D Permutation Sum
|
0 / 0 |
(无) |
|
|
5925 |
P285E Positions in Permutations
|
0 / 0 |
(无) |
|
|
5916 |
P288B Polo the Penguin and Houses
|
0 / 0 |
(无) |
|
|
5914 |
P288D Polo the Penguin and Trees
|
0 / 0 |
(无) |
|
|
5893 |
P293B Distinct Paths
|
0 / 0 |
(无) |
|
|
5887 |
P294C Shaass and Lights
|
0 / 0 |
(无) |
|
|
5882 |
P295C Greg and Friends
|
0 / 0 |
(无) |
|
|
5881 |
P295D Greg and Caves
|
0 / 0 |
(无) |
|
|
5878 |
P296B Yaroslav and Two Strings
|
0 / 0 |
(无) |
|
|
5866 |
P300C Beautiful Numbers
|
0 / 0 |
(无) |
|
|
5846 |
P305D Olya and Graph
|
0 / 0 |
(无) |
|
|
5842 |
P306C White, Black and White Again
|
0 / 0 |
(无) |
|
|
5791 |
P319A Malek Dance Club
|
0 / 0 |
(无) |
|
|
5778 |
P322B Ciel and Flowers
|
0 / 0 |
(无) |
|
|
5777 |
P323A Black-and-White Cube
|
0 / 0 |
(无) |
|
|
5770 |
P325E The Red Button
|
0 / 0 |
(无) |
|
|
5767 |
P327C Magic Five
|
0 / 0 |
(无) |
|
|
5765 |
P327E Axis Walking
|
0 / 0 |
(无) |
|
|
5722 |
P336D Vasily the Bear and Beautiful Strings
|
0 / 0 |
(无) |
|
|
5721 |
P336E Vasily the Bear and Painting Square
|
0 / 0 |
(无) |
|
|
5706 |
P340C Tourist Problem
|
0 / 0 |
(无) |
|
|
5704 |
P340E Iahub and Permutations
|
0 / 0 |
(无) |
|
|
5662 |
P351B Jeff and Furik
|
0 / 0 |
(无) |
|
|
5655 |
P353B Two Heaps
|
0 / 0 |
(无) |
|
|
5642 |
P356C Compartments
|
0 / 0 |
(无) |
|
|
5625 |
P360C Levko and Strings
|
0 / 0 |
(无) |
|
|
5610 |
P364A Matrix
|
0 / 0 |
(无) |
|
|
5594 |
P367E Sereja and Intervals
|
0 / 0 |
(无) |
|
|
5572 |
P372E Drawing Circles is Fun
|
0 / 0 |
(无) |
|
|
5568 |
P374B Inna and Nine
|
0 / 0 |
(无) |
|
|
5540 |
P380D Sereja and Cinema
|
0 / 0 |
(无) |
|
|
5532 |
P382E Ksenia and Combinatorics
|
0 / 0 |
(无) |
|
|
5527 |
P383E Vowels
|
0 / 0 |
(无) |
|
|
5484 |
P392C Yet Another Number Sequence
|
0 / 0 |
(无) |
|
|
5474 |
P396A On Number of Decompositions into Multipliers
|
0 / 0 |
(无) |
|
|
5471 |
P396D On Sum of Number of Inversions in Permutations
|
0 / 0 |
(无) |
|
|
5452 |
P401D Roman and Numbers
|
0 / 0 |
(无) |
|
|
5445 |
P403D Beautiful Pairs of Numbers
|
0 / 0 |
(无) |
|
|
5429 |
P407C Curious Array
|
0 / 0 |
(无) |
|
|
5401 |
P414B Mashmokh and ACM
|
0 / 0 |
(无) |
|
|
5400 |
P414C Mashmokh and Reverse Operation
|
0 / 0 |
(无) |
|
|
5349 |
P431D Random Task
|
0 / 0 |
(无) |
|
|
5318 |
P438E The Child and Binary Tree
|
0 / 0 |
(无) |
|
|
5313 |
P439E Devu and Birthday Celebration
|
0 / 0 |
(无) |
|
|
5274 |
P449D Jzzhu and Numbers
|
0 / 0 |
(无) |
|
|
5266 |
P451E Devu and Flowers
|
0 / 0 |
(无) |
|
|
5263 |
P452C Magic Trick
|
0 / 0 |
(无) |
|
|
5242 |
P457D Bingo!
|
0 / 0 |
(无) |
|
|
5238 |
P459B Pashmak and Flowers
|
0 / 0 |
(无) |
|
|
5237 |
P459C Pashmak and Buses
|
0 / 0 |
(无) |
|
|
5207 |
P466D Increase Sequence
|
0 / 0 |
(无) |
|
|
5160 |
P476B Dreamoon and WiFi
|
0 / 0 |
(无) |
|
|
5153 |
P478B Random Teams
|
0 / 0 |
(无) |
