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Problem set. Petrozavodsk Training Camp
Solved problems:
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authors
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difficulty
ID
Title
Source
Authors
Difficulty
1671
Anansi's Cobweb
Petrozavodsk Summer 2008. USU Contest
3436
116
1846
GCD 2010
Petrozavodsk Summer 2010. USU Contest
2101
151
1471
Distance in the Tree
Petrozavodsk Summer 2006. Ural+Orel Contest
2859
166
1385
Interesting Number
Petrozavodsk Summer 2005. Moscow+Ural Contest
2087
244
1470
UFOs
Petrozavodsk Summer 2006. Ural+Orel Contest
1887
251
1752
Tree 2
Petrozavodsk Summer 2009. Ufa SATU Contest
1443
253
1748
The Most Complex Number
Petrozavodsk Summer 2009. Ufa SATU Contest
1391
262
1528
Sequence
Petrozavodsk Winter 2007. D.Gozman Contest
1717
267
1553
Caves and Tunnels
Petrozavodsk Summer 2007. NSU Contest
1514
290
1523
K-inversions
Petrozavodsk Winter 2007. D.Gozman Contest
1548
296
1742
Team building
Petrozavodsk Summer 2009. Ufa SATU Contest
1200
303
1692
Flags for Provinces
Petrozavodsk Winter 2009. USU Contest
1054
370
1525
Path
Petrozavodsk Winter 2007. D.Gozman Contest
1153
397
1854
Negotiations with Parthians
Petrozavodsk Summer 2011. Ural SU Team.GOV Contest
762
413
1960
Palindromes and Super Abilities
Petrozavodsk Winter 2013. Kontur Cup. ChU 2013 Selection
628
427
1665
Dean's Financial Pyramid
Petrozavodsk Winter 2008. USU Contest
913
434
1860
Fiborial
Petrozavodsk Summer 2011. Ural SU Team.GOV Contest
694
453
2045
Richness of words
Petrozavodsk Summer 2014. Ural FU Dandelion Contest
509
455
1465
Pawn Game
Petrozavodsk Winter 2006. USU Contest
963
494
1389
Roadworks
Petrozavodsk Summer 2005. Moscow+Ural Contest
905
559
1463
Happiness to People!
Petrozavodsk Winter 2006. USU Contest
792
599
1690
Army of Mages
Petrozavodsk Winter 2009. USU Contest
624
620
1554
Multiplicative Functions
Petrozavodsk Summer 2007. NSU Contest
687
633
1698
Square Country 5
Petrozavodsk Winter 2009. USU Contest
611
633
2121
Intersection of Parabolas
Petrozavodsk Summer 2018. umnik_team Contest
176
707
1619
Big Brother
Petrozavodsk Winter 2008. ITMO Contest
571
708
1474
About Frogs
Petrozavodsk Summer 2006. Ural+Orel Contest
657
714
1745
Yet Another Answer
Petrozavodsk Summer 2009. Ufa SATU Contest
436
823
1462
Uncle Scrooge's Gold
Petrozavodsk Winter 2006. USU Contest
565
836
1468
Fraction
Petrozavodsk Summer 2006. Ural+Orel Contest
558
838
2119
Tree Hull
Petrozavodsk Summer 2018. umnik_team Contest
147
838
2040
Palindromes and Super Abilities 2
Petrozavodsk Summer 2014. Ural FU Dandelion Contest
268
850
1558
Periodical Numbers
Petrozavodsk Summer 2007. NSU Contest
505
857
1696
Salary for Robots
Petrozavodsk Winter 2009. USU Contest
436
882
1530
Ones and Zeroes
Petrozavodsk Winter 2007. D.Gozman Contest
508
892
1560
Elementary Symmetric Functions
Petrozavodsk Summer 2007. NSU Contest
464
931
1743
Domino Sorting
Petrozavodsk Summer 2009. Ufa SATU Contest
374
956
1861
Graveyard in Deyja
Petrozavodsk Summer 2011. Ural SU Team.GOV Contest
315
981
1469
No Smoking!
Petrozavodsk Summer 2006. Ural+Orel Contest
474
984
2123
Knapsack
Petrozavodsk Summer 2018. umnik_team Contest
123
989
1461
Christmas Garland
Petrozavodsk Winter 2006. USU Contest
471
999
1679
Scrooge's Tower
Petrozavodsk Summer 2008. USU Contest
387
1004
1817
Merry-go-round
Petrozavodsk Summer 2010. Tavrida NU Contest
324
1009
1625
Hankel Matrix
Petrozavodsk Winter 2008. ITMO Contest
387
1036
1959
GOV-internship 3
Petrozavodsk Winter 2013. Kontur Cup. ChU 2013 Selection
250
1047
1472
Martian Army
Petrozavodsk Summer 2006. Ural+Orel Contest
433
1075
1699
Turning Turtles
Petrozavodsk Winter 2009. USU Contest
354
1081
1627
Join
Petrozavodsk Winter 2008. ITMO Contest
370
1083
2037
Richness of binary words
Petrozavodsk Summer 2014. Ural FU Dandelion Contest
195
1152
1527
Bad Roads
Petrozavodsk Winter 2007. D.Gozman Contest
387
1163
1386
Maze
Petrozavodsk Summer 2005. Moscow+Ural Contest
428
1168
1552
Brainfuck
Petrozavodsk Summer 2007. NSU Contest
362
1186
1750
Pakhom and the Gully
Petrozavodsk Summer 2009. Ufa SATU Contest
290
1223
1467
Sum of Degrees
Petrozavodsk Winter 2006. USU Contest
381
1229
2124
Algebra on Segment
Petrozavodsk Summer 2018. umnik_team Contest
93
1277
1855
Trade Guilds of Erathia
Petrozavodsk Summer 2011. Ural SU Team.GOV Contest
238
1285
1673
Admission to Exam
Petrozavodsk Summer 2008. USU Contest
299
1290
1666
Vasya Ferrari
Petrozavodsk Winter 2008. USU Contest
300
1292
1476
Lunar Code
Petrozavodsk Summer 2006. Ural+Orel Contest
357
1298
1857
Alice and Bandersnatch
Petrozavodsk Summer 2011. Ural SU Team.GOV Contest
232
1317
1747
Kingdom Inspection
Petrozavodsk Summer 2009. Ufa SATU Contest
263
1344
1526
Martian Plates
Petrozavodsk Winter 2007. D.Gozman Contest
330
1358
1669
Universal Word
Petrozavodsk Winter 2008. USU Contest
279
1386
1387
Vasya's Dad
Petrozavodsk Summer 2005. Moscow+Ural Contest
357
1394
2118
Cipher Message 4
Petrozavodsk Summer 2018. umnik_team Contest
83
1414
1531
Zones on a Plane
Petrozavodsk Winter 2007. D.Gozman Contest
314
1425
1811
Dual-SIM Phone
Petrozavodsk Summer 2010. Tavrida NU Contest
225
1434
1620
Clever House
Petrozavodsk Winter 2008. ITMO Contest
261
1518
2126
Partition into Teams
Petrozavodsk Summer 2018. umnik_team Contest
75
1547
1844
Warlord of the Army of Mages
Petrozavodsk Summer 2010. USU Contest
196
1550
1677
Monkey at the Keyboard
Petrozavodsk Summer 2008. USU Contest
245
1564
1813
Random Shuffler
Petrozavodsk Summer 2010. Tavrida NU Contest
202
1590
1746
Hyperrook
Petrozavodsk Summer 2009. Ufa SATU Contest
214
1638
2036
Intersect Until You're Sick of It
Petrozavodsk Summer 2014. Ural FU Dandelion Contest
134
1641
1459
Archer's Travel
Petrozavodsk Winter 2006. USU Contest
277
1674
1851
GOV-internship
Petrozavodsk Summer 2011. Ural SU Team.GOV Contest
179
1687
1676
Mortal Kombat
Petrozavodsk Summer 2008. USU Contest
219
1741
1382
Game with Cards
Petrozavodsk Summer 2005. Moscow+Ural Contest
282
1752
1522
Factory
Petrozavodsk Winter 2007. D.Gozman Contest
250
1776
1557
Network Attack
Petrozavodsk Summer 2007. NSU Contest
236
1794
2120
Tree Average Weight
Petrozavodsk Summer 2018. umnik_team Contest
63
1801
1675
Lunar Code 2
Petrozavodsk Summer 2008. USU Contest
208
1829
1670
Asterisk
Petrozavodsk Summer 2008. USU Contest
205
1855
1951
Complex Root
Petrozavodsk Winter 2013. Kontur Cup. ChU 2013 Selection
135
1878
1664
Pipeline Transportation
Petrozavodsk Winter 2008. USU Contest
194
1963
1818
Fair Fishermen
Petrozavodsk Summer 2010. Tavrida NU Contest
160
1983
1667
Square Country 3
Petrozavodsk Winter 2008. USU Contest
191
1993
1744
The Captain's Squad
Petrozavodsk Summer 2009. Ufa SATU Contest
169
2050
1749
Periodic Sum
Petrozavodsk Summer 2009. Ufa SATU Contest
168
2061
1841
Cableways
Petrozavodsk Summer 2010. USU Contest
144
2073
2041
Nanomatryoshkas
Petrozavodsk Summer 2014. Ural FU Dandelion Contest
92
2316
1956
Fire Signals
Petrozavodsk Winter 2013. Kontur Cup. ChU 2013 Selection
105
2368
1816
Troubles with Pollard
Petrozavodsk Summer 2010. Tavrida NU Contest
131
2391
1953
Biggest Inscribed Ellipse
Petrozavodsk Winter 2013. Kontur Cup. ChU 2013 Selection
102
2432
1852
Cube in a Cube in a Cube
Petrozavodsk Summer 2011. Ural SU Team.GOV Contest
120
2452
1849
Rabbit Hunt 2
Petrozavodsk Summer 2010. USU Contest
120
2456
2038
Minimum Vertex Cover
Petrozavodsk Summer 2014. Ural FU Dandelion Contest
83
2540
2044
31 Palindromes
Petrozavodsk Summer 2014. Ural FU Dandelion Contest
82
2568
1812
The Island of Bad Luck 2
Petrozavodsk Summer 2010. Tavrida NU Contest
111
2786
1694
Killer Words
Petrozavodsk Winter 2009. USU Contest
130
2809
1850
Space Tourism
Petrozavodsk Summer 2010. USU Contest
103
2825
1561
Winnie the Pooh
Petrozavodsk Summer 2007. NSU Contest
143
2885
1464
Light
Petrozavodsk Winter 2006. USU Contest
155
2912
1695
Work for Robots
Petrozavodsk Winter 2009. USU Contest
125
2913
1477
Airplanes
Petrozavodsk Summer 2006. Ural+Orel Contest
148
3014
1663
The Hobbit or There and Back Again 2
Petrozavodsk Winter 2008. USU Contest
121
3058
1955
Boss, I Can See You!
Petrozavodsk Winter 2013. Kontur Cup. ChU 2013 Selection
79
3060
1814
Continued Fraction
Petrozavodsk Summer 2010. Tavrida NU Contest
100
3065
1622
Endspiel
Petrozavodsk Winter 2008. ITMO Contest
123
3094
1623
Fractal Labyrinth
Petrozavodsk Winter 2008. ITMO Contest
121
3141
1466
Magic Square
Petrozavodsk Winter 2006. USU Contest
141
3182
1691
Algorithm Complexity
Petrozavodsk Winter 2009. USU Contest
113
3198
2125
Continue the Sequence
Petrozavodsk Summer 2018. umnik_team Contest
28
3460
1381
Cockroaches in the Building
Petrozavodsk Summer 2005. Moscow+Ural Contest
136
3504
2127
Determinant of a Graph
Petrozavodsk Summer 2018. umnik_team Contest
26
3652
1751
Improbability Theory
Petrozavodsk Summer 2009. Ufa SATU Contest
89
3706
1529
Game of Squares
Petrozavodsk Winter 2007. D.Gozman Contest
114
3724
1958
Algorithm of Professor Ivanov
Petrozavodsk Winter 2013. Kontur Cup. ChU 2013 Selection
63
3731
1661
Dodecahedron
Petrozavodsk Winter 2008. USU Contest
97
3743
1858
Magic Cube
Petrozavodsk Summer 2011. Ural SU Team.GOV Contest
75
3750
1856
War and Peace
Petrozavodsk Summer 2011. Ural SU Team.GOV Contest
74
3795
1954
Five Palindromes
Petrozavodsk Winter 2013. Kontur Cup. ChU 2013 Selection
61
3836
1475
Ryaba Hen
Petrozavodsk Summer 2006. Ural+Orel Contest
114
3840
1478
Spy Satellites
Petrozavodsk Summer 2006. Ural+Orel Contest
109
4002
2042
Nikita
Petrozavodsk Summer 2014. Ural FU Dandelion Contest
49
4004
1810
Antiequations
Petrozavodsk Summer 2010. Tavrida NU Contest
73
4061
1843
Cutting a Parallelepiped
Petrozavodsk Summer 2010. USU Contest
68
4093
1380
Ostap's Chess
Petrozavodsk Summer 2005. Moscow+Ural Contest
112
4193
1859
Last Season of Team.GOV
Petrozavodsk Summer 2011. Ural SU Team.GOV Contest
66
4195
1460
Wires
Petrozavodsk Winter 2006. USU Contest
104
4215
1559
TruCoders Linguistics
Petrozavodsk Summer 2007. NSU Contest
92
4327
1618
Arrays Printing
Petrozavodsk Winter 2008. ITMO Contest
84
4377
1847
Zamkadye
Petrozavodsk Summer 2010. USU Contest
62
4434
1815
Farm in San Andreas
Petrozavodsk Summer 2010. Tavrida NU Contest
66
4436
2043
Kirill the Gardener 2
Petrozavodsk Summer 2014. Ural FU Dandelion Contest
43
4458
1479
Scheduled Checking
Petrozavodsk Summer 2006. Ural+Orel Contest
95
4535
1621
Definite Integral
Petrozavodsk Winter 2008. ITMO Contest
79
4623
1845
Integer-valued Complex Determinant
Petrozavodsk Summer 2010. USU Contest
59
4627
1662
Goat in the Garden 6
Petrozavodsk Winter 2008. USU Contest
76
4658
2122
Hamming
Petrozavodsk Summer 2018. umnik_team Contest
17
4870
1384
Goat in the Garden 4
Petrozavodsk Summer 2005. Moscow+Ural Contest
91
5065
1624
Go out of here!
Petrozavodsk Winter 2008. ITMO Contest
71
5080
1848
Fly Hunt
Petrozavodsk Summer 2010. USU Contest
52
5149
1473
Farm 2
Petrozavodsk Summer 2006. Ural+Orel Contest
79
5351
1391
Snake
Petrozavodsk Summer 2005. Moscow+Ural Contest
85
5385
1697
Sniper Shot
Petrozavodsk Winter 2009. USU Contest
61
5540
1957
Mundial
Petrozavodsk Winter 2013. Kontur Cup. ChU 2013 Selection
39
5558
1668
Death Star 2
Petrozavodsk Winter 2008. USU Contest
59
5805
1678
Space Poker 3
Petrozavodsk Summer 2008. USU Contest
56
6041
1674
Drunk King
Petrozavodsk Summer 2008. USU Contest
55
6134
1660
The Island of Bad Luck
Petrozavodsk Winter 2008. USU Contest
51
6566
1842
Local Roots
Petrozavodsk Summer 2010. USU Contest
37
6792
2039
Striped Square
Petrozavodsk Summer 2014. Ural FU Dandelion Contest
24
6948
1819
Professional Approach
Petrozavodsk Summer 2010. Tavrida NU Contest
36
7328
1853
Laser Technologies
Petrozavodsk Summer 2011. Ural SU Team.GOV Contest
32
7590
1626
Interfering Segment
Petrozavodsk Winter 2008. ITMO Contest
41
8068
1556
Multishot in the Secret Cow Level
Petrozavodsk Summer 2007. NSU Contest
37
9391
1555
Find the Treasure!
Petrozavodsk Summer 2007. NSU Contest
36
9595
1390
Shots at Walls
Petrozavodsk Summer 2005. Moscow+Ural Contest
43
9652
1383
Flower-garden Designs
Petrozavodsk Summer 2005. Moscow+Ural Contest
42
9838
1672
Droid flies
Petrozavodsk Summer 2008. USU Contest
26
11075
1693
Loyd's Problem
Petrozavodsk Winter 2009. USU Contest
25
11238
1952
To Kill the Dragon
Petrozavodsk Winter 2013. Kontur Cup. ChU 2013 Selection
13
11839
1524
Men in Black
Petrozavodsk Winter 2007. D.Gozman Contest
25
13194
1388
Photo
Petrozavodsk Summer 2005. Moscow+Ural Contest
21
16502
Solved problems:
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