|
|
7648 |
P9D How many trees?
|
0 / 0 |
(无) |
|
|
7617 |
P15E Triangles
|
0 / 0 |
(无) |
|
|
7567 |
P26C Parquet
|
0 / 0 |
(无) |
|
|
7566 |
P26D Tickets
|
0 / 0 |
(无) |
|
|
7557 |
P28C Bath Queue
|
0 / 0 |
(无) |
|
|
7511 |
P37D Lesson Timetable
|
0 / 0 |
(无) |
|
|
7486 |
P40E Number Table
|
0 / 0 |
(无) |
|
|
7462 |
P44I Toys
|
0 / 0 |
(无) |
|
|
7416 |
P51E Pentagon
|
0 / 0 |
(无) |
|
|
7413 |
P52B Right Triangles
|
0 / 0 |
(无) |
|
|
7389 |
P57C Array
|
0 / 0 |
(无) |
|
|
7221 |
P91C Ski Base
|
0 / 0 |
(无) |
|
|
7156 |
P107B Basketball Team
|
0 / 0 |
(无) |
|
|
7140 |
P111D Petya and Coloring
|
0 / 0 |
(无) |
|
|
7132 |
P113E Sleeping
|
0 / 0 |
(无) |
|
|
7095 |
P121C Lucky Permutation
|
0 / 0 |
(无) |
|
|
7088 |
P123C Brackets
|
0 / 0 |
(无) |
|
|
7084 |
P124B Permutations
|
0 / 0 |
(无) |
|
|
7069 |
P128C Games with Rectangle
|
0 / 0 |
(无) |
|
|
7052 |
P131C The World is a Theatre
|
0 / 0 |
(无) |
|
|
7034 |
P135E Weak Subsequence
|
0 / 0 |
(无) |
|
|
7015 |
P140E New Year Garland
|
0 / 0 |
(无) |
|
|
6994 |
P145C Lucky Subsequence
|
0 / 0 |
(无) |
|
|
6993 |
P145D Lucky Pair
|
0 / 0 |
(无) |
|
|
6976 |
P150B Quantity of Strings
|
0 / 0 |
(无) |
|
|
6968 |
P152C Pocket Book
|
0 / 0 |
(无) |
|
|
6951 |
P156C Cipher
|
0 / 0 |
(无) |
|
|
6950 |
P156D Clues
|
0 / 0 |
(无) |
|
|
6886 |
P171B Star
|
0 / 0 |
(无) |
|
|
6858 |
P176C Playing with Superglue
|
0 / 0 |
(无) |
|
|
6736 |
P201E Thoroughly Bureaucratic Organization
|
0 / 0 |
(无) |
|
|
6728 |
P204A Little Elephant and Interval
|
0 / 0 |
(无) |
|
|
6692 |
P212C Cowboys
|
0 / 0 |
(无) |
|
|
6688 |
P213B Numbers
|
0 / 0 |
(无) |
|
|
6678 |
P215E Periodical Numbers
|
0 / 0 |
(无) |
|
|
6669 |
P217D Bitonix' Patrol
|
0 / 0 |
(无) |
|
|
6646 |
P223C Partial Sums
|
0 / 0 |
(无) |
|
|
6622 |
P229C Triangles
|
0 / 0 |
(无) |
|
|
6620 |
P229E Gifts
|
0 / 0 |
(无) |
|
|
6611 |
P232B Table
|
0 / 0 |
(无) |
|
|
6593 |
P235E Number Challenge
|
0 / 0 |
(无) |
|
|
6532 |
P251A Points on Line
|
0 / 0 |
(无) |
|
|
6502 |
P258B Little Elephant and Elections
|
0 / 0 |
(无) |
|
|
6501 |
P258C Little Elephant and LCM
|
0 / 0 |
(无) |
|
|
6444 |
P272D Dima and Two Sequences
|
0 / 0 |
(无) |
|
|
6443 |
P272E Dima and Horses
|
0 / 0 |
(无) |
|
|
6400 |
P283E Cow Tennis Tournament
|
0 / 0 |
(无) |
|
|
6394 |
P285D Permutation Sum
|
0 / 0 |
(无) |
|
|
6393 |
P285E Positions in Permutations
|
0 / 0 |
(无) |
|
|
6384 |
P288B Polo the Penguin and Houses
|
0 / 0 |
(无) |
|
|
6382 |
P288D Polo the Penguin and Trees
|
0 / 0 |
(无) |
|
|
6361 |
P293B Distinct Paths
|
0 / 0 |
(无) |
|
|
6355 |
P294C Shaass and Lights
|
0 / 0 |
(无) |
|
|
6350 |
P295C Greg and Friends
|
0 / 0 |
(无) |
|
|
6349 |
P295D Greg and Caves
|
0 / 0 |
(无) |
|
|
6346 |
P296B Yaroslav and Two Strings
|
0 / 0 |
(无) |
|
|
6334 |
P300C Beautiful Numbers
|
0 / 0 |
(无) |
|
|
6314 |
P305D Olya and Graph
|
0 / 0 |
(无) |
|
|
6310 |
P306C White, Black and White Again
|
0 / 0 |
(无) |
|
|
6259 |
P319A Malek Dance Club
|
0 / 0 |
(无) |
|
|
6246 |
P322B Ciel and Flowers
|
0 / 0 |
(无) |
|
|
6245 |
P323A Black-and-White Cube
|
0 / 0 |
(无) |
|
|
6238 |
P325E The Red Button
|
0 / 0 |
(无) |
|
|
6235 |
P327C Magic Five
|
0 / 0 |
(无) |
|
|
6233 |
P327E Axis Walking
|
0 / 0 |
(无) |
|
|
6190 |
P336D Vasily the Bear and Beautiful Strings
|
0 / 0 |
(无) |
|
|
6189 |
P336E Vasily the Bear and Painting Square
|
0 / 0 |
(无) |
|
|
6174 |
P340C Tourist Problem
|
0 / 0 |
(无) |
|
|
6172 |
P340E Iahub and Permutations
|
0 / 0 |
(无) |
|
|
6130 |
P351B Jeff and Furik
|
0 / 0 |
(无) |
|
|
6123 |
P353B Two Heaps
|
0 / 0 |
(无) |
|
|
6110 |
P356C Compartments
|
0 / 0 |
(无) |
|
|
6093 |
P360C Levko and Strings
|
0 / 0 |
(无) |
|
|
6078 |
P364A Matrix
|
0 / 0 |
(无) |
|
|
6062 |
P367E Sereja and Intervals
|
0 / 0 |
(无) |
|
|
6040 |
P372E Drawing Circles is Fun
|
0 / 0 |
(无) |
|
|
6036 |
P374B Inna and Nine
|
0 / 0 |
(无) |
|
|
6008 |
P380D Sereja and Cinema
|
0 / 0 |
(无) |
|
|
6000 |
P382E Ksenia and Combinatorics
|
0 / 0 |
(无) |
|
|
5995 |
P383E Vowels
|
0 / 0 |
(无) |
|
|
5952 |
P392C Yet Another Number Sequence
|
0 / 0 |
(无) |
|
|
5942 |
P396A On Number of Decompositions into Multipliers
|
0 / 0 |
(无) |
|
|
5939 |
P396D On Sum of Number of Inversions in Permutations
|
0 / 0 |
(无) |
|
|
5920 |
P401D Roman and Numbers
|
0 / 0 |
(无) |
|
|
5913 |
P403D Beautiful Pairs of Numbers
|
0 / 0 |
(无) |
|
|
5897 |
P407C Curious Array
|
0 / 0 |
(无) |
|
|
5869 |
P414B Mashmokh and ACM
|
0 / 0 |
(无) |
|
|
5868 |
P414C Mashmokh and Reverse Operation
|
0 / 0 |
(无) |
|
|
5817 |
P431D Random Task
|
0 / 0 |
(无) |
|
|
5786 |
P438E The Child and Binary Tree
|
0 / 0 |
(无) |
|
|
5781 |
P439E Devu and Birthday Celebration
|
0 / 0 |
(无) |
|
|
5742 |
P449D Jzzhu and Numbers
|
0 / 0 |
(无) |
|
|
5734 |
P451E Devu and Flowers
|
0 / 0 |
(无) |
|
|
5731 |
P452C Magic Trick
|
0 / 0 |
(无) |
|
|
5710 |
P457D Bingo!
|
0 / 0 |
(无) |
|
|
5706 |
P459B Pashmak and Flowers
|
0 / 0 |
(无) |
|
|
5705 |
P459C Pashmak and Buses
|
0 / 0 |
(无) |
|
|
5675 |
P466D Increase Sequence
|
0 / 0 |
(无) |
|
|
5628 |
P476B Dreamoon and WiFi
|
0 / 0 |
(无) |
|
|
5621 |
P478B Random Teams
|
0 / 0 |
(无) |
