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Problem set. Volume 7
Solved problems:
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Volume 6
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ID
Title
Source
Authors
Difficulty
1639
Chocolate 2
Autumn School Contest 2008
12703
32
1607
Taxi
USU Personal Contest 2008
9293
46
1636
Penalty Time
USU Championship 2008
6936
59
1654
Cipher Message
NEERC 2008 Eastern Subregional
6927
58
1617
Flat Spots
Ural Championship 2008
6633
64
1638
Bookworm
USU Championship 2008
6261
65
1601
AntiCAPS
USU Personal Contest 2008
4708
90
1642
1D Maze
Autumn School Contest 2008
4239
95
1644
A Whole Lot of Walnuts
Autumn School Contest 2008
4119
98
1671
Anansi's Cobweb
Petrozavodsk Summer 2008. USU Contest
3438
116
1613
For Fans of Statistics
Ural Championship 2008
3029
140
1688
Team.GOV!
USU Personal Contest 2009
3020
130
1683
Fridge
USU Personal Contest 2009
2971
132
1604
Country of Fools
USU Personal Contest 2008
2949
144
1612
Tram Forum
Ural Championship 2008
2858
148
1628
White Streaks
USU Championship 2008
2386
170
1640
Circle of Winter
Autumn School Contest 2008
2341
173
1685
Orthography
USU Personal Contest 2009
2203
178
1635
Mnemonics and Palindromes
USU Championship 2008
2058
197
1650
Billionaires
NEERC 2008 Eastern Subregional
2057
196
1645
Ski Race
Autumn School Contest 2008
2052
197
1658
Sum of Digits
NEERC 2008 Eastern Subregional
2037
198
1656
Far Away Kingdom's Army
NEERC 2008 Eastern Subregional
1997
202
1680
The First Nonqualifying
USU Personal Contest 2009
1806
217
1603
Erudite
USU Personal Contest 2008
1679
253
1684
Jack's Last Word
USU Personal Contest 2009
1484
264
1651
Shortest Subchain
NEERC 2008 Eastern Subregional
1166
344
1648
Yachts
Autumn School Contest 2008
1063
378
1692
Flags for Provinces
Petrozavodsk Winter 2009. USU Contest
1054
370
1643
Attack of the Dark Fortress
Autumn School Contest 2008
953
421
1602
Elevator
USU Personal Contest 2008
942
448
1665
Dean's Financial Pyramid
Petrozavodsk Winter 2008. USU Contest
913
434
1631
Drunk King 2
USU Championship 2008
845
476
1641
Duties
Autumn School Contest 2008
807
496
1600
Airport
USU Personal Contest 2008
761
553
1682
Crazy Professor
USU Personal Contest 2009
727
535
1605
Devil's Sequence
USU Personal Contest 2008
698
603
1690
Army of Mages
Petrozavodsk Winter 2009. USU Contest
624
621
1659
Regular Triangles
NEERC 2008 Eastern Subregional
622
641
1698
Square Country 5
Petrozavodsk Winter 2009. USU Contest
611
634
1611
Decimation
Ural Championship 2008
609
685
1606
Slalom
USU Personal Contest 2008
599
701
1619
Big Brother
Petrozavodsk Winter 2008. ITMO Contest
573
706
1633
Hippogriffs
USU Championship 2008
524
762
1614
National Project “Trams”
Ural Championship 2008
498
835
1629
Trip
USU Championship 2008
484
823
1647
Divide an Island!
Autumn School Contest 2008
479
829
1646
Godzilla Strikes Back!
Autumn School Contest 2008
449
884
1696
Salary for Robots
Petrozavodsk Winter 2009. USU Contest
436
882
1689
Fisherman and Barbell
USU Personal Contest 2009
422
914
1608
Lucky Tickets 2008
Ural Championship 2008
403
1027
1630
Talisman
USU Championship 2008
392
1012
1625
Hankel Matrix
Petrozavodsk Winter 2008. ITMO Contest
387
1037
1679
Scrooge's Tower
Petrozavodsk Summer 2008. USU Contest
387
1005
1627
Join
Petrozavodsk Winter 2008. ITMO Contest
370
1083
1699
Turning Turtles
Petrozavodsk Winter 2009. USU Contest
354
1081
1687
Numismatics for Fun
USU Personal Contest 2009
303
1261
1666
Vasya Ferrari
Petrozavodsk Winter 2008. USU Contest
300
1292
1673
Admission to Exam
Petrozavodsk Summer 2008. USU Contest
299
1291
1669
Universal Word
Petrozavodsk Winter 2008. USU Contest
279
1386
1620
Clever House
Petrozavodsk Winter 2008. ITMO Contest
261
1519
1657
Cube Snake
NEERC 2008 Eastern Subregional
259
1505
1686
Photovoltaic Spaceship
USU Personal Contest 2009
256
1484
1677
Monkey at the Keyboard
Petrozavodsk Summer 2008. USU Contest
245
1564
1676
Mortal Kombat
Petrozavodsk Summer 2008. USU Contest
219
1742
1675
Lunar Code 2
Petrozavodsk Summer 2008. USU Contest
208
1830
1655
Somali Pirates
NEERC 2008 Eastern Subregional
206
1875
1610
Cactuses
Ural Championship 2008
205
1973
1670
Asterisk
Petrozavodsk Summer 2008. USU Contest
205
1855
1615
Tram Solitaire
Ural Championship 2008
197
2049
1664
Pipeline Transportation
Petrozavodsk Winter 2008. USU Contest
194
1964
1667
Square Country 3
Petrozavodsk Winter 2008. USU Contest
191
1993
1634
Spider Mite
USU Championship 2008
174
2211
1652
Banking Crisis
NEERC 2008 Eastern Subregional
139
2718
1609
Tram Tile
Ural Championship 2008
137
2885
1694
Killer Words
Petrozavodsk Winter 2009. USU Contest
130
2810
1695
Work for Robots
Petrozavodsk Winter 2009. USU Contest
125
2914
1622
Endspiel
Petrozavodsk Winter 2008. ITMO Contest
123
3095
1623
Fractal Labyrinth
Petrozavodsk Winter 2008. ITMO Contest
121
3142
1663
The Hobbit or There and Back Again 2
Petrozavodsk Winter 2008. USU Contest
121
3059
1637
Triangle Game 2
USU Championship 2008
113
3307
1691
Algorithm Complexity
Petrozavodsk Winter 2009. USU Contest
113
3199
1661
Dodecahedron
Petrozavodsk Winter 2008. USU Contest
97
3745
1681
Brother Bear's Garden
USU Personal Contest 2009
97
3688
1616
Square Country 4
Ural Championship 2008
96
4001
1618
Arrays Printing
Petrozavodsk Winter 2008. ITMO Contest
84
4379
1632
Lasers
USU Championship 2008
82
4421
1621
Definite Integral
Petrozavodsk Winter 2008. ITMO Contest
79
4625
1662
Goat in the Garden 6
Petrozavodsk Winter 2008. USU Contest
76
4659
1624
Go out of here!
Petrozavodsk Winter 2008. ITMO Contest
71
5081
1697
Sniper Shot
Petrozavodsk Winter 2009. USU Contest
61
5541
1668
Death Star 2
Petrozavodsk Winter 2008. USU Contest
59
5807
1678
Space Poker 3
Petrozavodsk Summer 2008. USU Contest
56
6043
1674
Drunk King
Petrozavodsk Summer 2008. USU Contest
55
6136
1660
The Island of Bad Luck
Petrozavodsk Winter 2008. USU Contest
51
6568
1653
Death Conveyor
NEERC 2008 Eastern Subregional
50
6749
1649
Abstractionism to the People
NEERC 2008 Eastern Subregional
48
6982
1626
Interfering Segment
Petrozavodsk Winter 2008. ITMO Contest
41
8071
1672
Droid flies
Petrozavodsk Summer 2008. USU Contest
26
11079
1693
Loyd's Problem
Petrozavodsk Winter 2009. USU Contest
25
11241
Solved problems:
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