| 
          
         | 
        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 |