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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
3432
116
1471
Distance in the Tree
Petrozavodsk Summer 2006. Ural+Orel Contest
2858
166
1846
GCD 2010
Petrozavodsk Summer 2010. USU Contest
2099
151
1385
Interesting Number
Petrozavodsk Summer 2005. Moscow+Ural Contest
2086
244
1470
UFOs
Petrozavodsk Summer 2006. Ural+Orel Contest
1888
251
1528
Sequence
Petrozavodsk Winter 2007. D.Gozman Contest
1717
267
1523
K-inversions
Petrozavodsk Winter 2007. D.Gozman Contest
1548
296
1553
Caves and Tunnels
Petrozavodsk Summer 2007. NSU Contest
1513
289
1752
Tree 2
Petrozavodsk Summer 2009. Ufa SATU Contest
1444
252
1748
The Most Complex Number
Petrozavodsk Summer 2009. Ufa SATU Contest
1391
261
1742
Team building
Petrozavodsk Summer 2009. Ufa SATU Contest
1198
303
1525
Path
Petrozavodsk Winter 2007. D.Gozman Contest
1150
398
1692
Flags for Provinces
Petrozavodsk Winter 2009. USU Contest
1055
369
1465
Pawn Game
Petrozavodsk Winter 2006. USU Contest
961
494
1665
Dean's Financial Pyramid
Petrozavodsk Winter 2008. USU Contest
912
434
1389
Roadworks
Petrozavodsk Summer 2005. Moscow+Ural Contest
905
558
1463
Happiness to People!
Petrozavodsk Winter 2006. USU Contest
791
599
1854
Negotiations with Parthians
Petrozavodsk Summer 2011. Ural SU Team.GOV Contest
761
412
1860
Fiborial
Petrozavodsk Summer 2011. Ural SU Team.GOV Contest
693
452
1554
Multiplicative Functions
Petrozavodsk Summer 2007. NSU Contest
687
632
1474
About Frogs
Petrozavodsk Summer 2006. Ural+Orel Contest
655
715
1960
Palindromes and Super Abilities
Petrozavodsk Winter 2013. Kontur Cup. ChU 2013 Selection
628
426
1690
Army of Mages
Petrozavodsk Winter 2009. USU Contest
624
619
1698
Square Country 5
Petrozavodsk Winter 2009. USU Contest
611
632
1619
Big Brother
Petrozavodsk Winter 2008. ITMO Contest
571
707
1462
Uncle Scrooge's Gold
Petrozavodsk Winter 2006. USU Contest
564
836
1468
Fraction
Petrozavodsk Summer 2006. Ural+Orel Contest
559
836
2045
Richness of words
Petrozavodsk Summer 2014. Ural FU Dandelion Contest
510
453
1530
Ones and Zeroes
Petrozavodsk Winter 2007. D.Gozman Contest
508
890
1558
Periodical Numbers
Petrozavodsk Summer 2007. NSU Contest
505
856
1469
No Smoking!
Petrozavodsk Summer 2006. Ural+Orel Contest
474
983
1461
Christmas Garland
Petrozavodsk Winter 2006. USU Contest
472
996
1560
Elementary Symmetric Functions
Petrozavodsk Summer 2007. NSU Contest
465
928
1745
Yet Another Answer
Petrozavodsk Summer 2009. Ufa SATU Contest
437
819
1696
Salary for Robots
Petrozavodsk Winter 2009. USU Contest
436
880
1472
Martian Army
Petrozavodsk Summer 2006. Ural+Orel Contest
434
1071
1386
Maze
Petrozavodsk Summer 2005. Moscow+Ural Contest
429
1164
1527
Bad Roads
Petrozavodsk Winter 2007. D.Gozman Contest
388
1159
1625
Hankel Matrix
Petrozavodsk Winter 2008. ITMO Contest
388
1032
1679
Scrooge's Tower
Petrozavodsk Summer 2008. USU Contest
385
1008
1467
Sum of Degrees
Petrozavodsk Winter 2006. USU Contest
382
1224
1743
Domino Sorting
Petrozavodsk Summer 2009. Ufa SATU Contest
375
951
1627
Join
Petrozavodsk Winter 2008. ITMO Contest
371
1078
1552
Brainfuck
Petrozavodsk Summer 2007. NSU Contest
363
1182
1476
Lunar Code
Petrozavodsk Summer 2006. Ural+Orel Contest
358
1292
1387
Vasya's Dad
Petrozavodsk Summer 2005. Moscow+Ural Contest
357
1392
1699
Turning Turtles
Petrozavodsk Winter 2009. USU Contest
355
1076
1526
Martian Plates
Petrozavodsk Winter 2007. D.Gozman Contest
331
1353
1817
Merry-go-round
Petrozavodsk Summer 2010. Tavrida NU Contest
325
1004
1531
Zones on a Plane
Petrozavodsk Winter 2007. D.Gozman Contest
315
1419
1861
Graveyard in Deyja
Petrozavodsk Summer 2011. Ural SU Team.GOV Contest
315
979
1666
Vasya Ferrari
Petrozavodsk Winter 2008. USU Contest
301
1286
1673
Admission to Exam
Petrozavodsk Summer 2008. USU Contest
300
1284
1750
Pakhom and the Gully
Petrozavodsk Summer 2009. Ufa SATU Contest
290
1221
1382
Game with Cards
Petrozavodsk Summer 2005. Moscow+Ural Contest
283
1744
1669
Universal Word
Petrozavodsk Winter 2008. USU Contest
280
1379
1459
Archer's Travel
Petrozavodsk Winter 2006. USU Contest
278
1666
2040
Palindromes and Super Abilities 2
Petrozavodsk Summer 2014. Ural FU Dandelion Contest
269
844
1747
Kingdom Inspection
Petrozavodsk Summer 2009. Ufa SATU Contest
264
1337
1620
Clever House
Petrozavodsk Winter 2008. ITMO Contest
262
1510
1522
Factory
Petrozavodsk Winter 2007. D.Gozman Contest
251
1767
1959
GOV-internship 3
Petrozavodsk Winter 2013. Kontur Cup. ChU 2013 Selection
251
1040
1677
Monkey at the Keyboard
Petrozavodsk Summer 2008. USU Contest
246
1555
1855
Trade Guilds of Erathia
Petrozavodsk Summer 2011. Ural SU Team.GOV Contest
239
1277
1557
Network Attack
Petrozavodsk Summer 2007. NSU Contest
237
1784
1857
Alice and Bandersnatch
Petrozavodsk Summer 2011. Ural SU Team.GOV Contest
233
1309
1811
Dual-SIM Phone
Petrozavodsk Summer 2010. Tavrida NU Contest
226
1425
1676
Mortal Kombat
Petrozavodsk Summer 2008. USU Contest
220
1731
1746
Hyperrook
Petrozavodsk Summer 2009. Ufa SATU Contest
215
1628
1675
Lunar Code 2
Petrozavodsk Summer 2008. USU Contest
209
1818
1670
Asterisk
Petrozavodsk Summer 2008. USU Contest
206
1843
1813
Random Shuffler
Petrozavodsk Summer 2010. Tavrida NU Contest
203
1579
1844
Warlord of the Army of Mages
Petrozavodsk Summer 2010. USU Contest
197
1539
1664
Pipeline Transportation
Petrozavodsk Winter 2008. USU Contest
195
1951
2037
Richness of binary words
Petrozavodsk Summer 2014. Ural FU Dandelion Contest
195
1148
1667
Square Country 3
Petrozavodsk Winter 2008. USU Contest
192
1980
1851
GOV-internship
Petrozavodsk Summer 2011. Ural SU Team.GOV Contest
180
1674
2121
Intersection of Parabolas
Petrozavodsk Summer 2018. umnik_team Contest
175
706
1744
The Captain's Squad
Petrozavodsk Summer 2009. Ufa SATU Contest
170
2035
1749
Periodic Sum
Petrozavodsk Summer 2009. Ufa SATU Contest
169
2046
1818
Fair Fishermen
Petrozavodsk Summer 2010. Tavrida NU Contest
161
1967
1464
Light
Petrozavodsk Winter 2006. USU Contest
156
2891
1477
Airplanes
Petrozavodsk Summer 2006. Ural+Orel Contest
149
2991
2119
Tree Hull
Petrozavodsk Summer 2018. umnik_team Contest
148
826
1841
Cableways
Petrozavodsk Summer 2010. USU Contest
145
2055
1561
Winnie the Pooh
Petrozavodsk Summer 2007. NSU Contest
144
2862
1466
Magic Square
Petrozavodsk Winter 2006. USU Contest
142
3157
1381
Cockroaches in the Building
Petrozavodsk Summer 2005. Moscow+Ural Contest
137
3476
1951
Complex Root
Petrozavodsk Winter 2013. Kontur Cup. ChU 2013 Selection
136
1860
2036
Intersect Until You're Sick of It
Petrozavodsk Summer 2014. Ural FU Dandelion Contest
135
1624
1816
Troubles with Pollard
Petrozavodsk Summer 2010. Tavrida NU Contest
132
2369
1694
Killer Words
Petrozavodsk Winter 2009. USU Contest
131
2785
1695
Work for Robots
Petrozavodsk Winter 2009. USU Contest
126
2887
1622
Endspiel
Petrozavodsk Winter 2008. ITMO Contest
124
3066
2123
Knapsack
Petrozavodsk Summer 2018. umnik_team Contest
124
974
1623
Fractal Labyrinth
Petrozavodsk Winter 2008. ITMO Contest
122
3112
1663
The Hobbit or There and Back Again 2
Petrozavodsk Winter 2008. USU Contest
122
3029
1849
Rabbit Hunt 2
Petrozavodsk Summer 2010. USU Contest
121
2431
1852
Cube in a Cube in a Cube
Petrozavodsk Summer 2011. Ural SU Team.GOV Contest
121
2428
1475
Ryaba Hen
Petrozavodsk Summer 2006. Ural+Orel Contest
115
3805
1529
Game of Squares
Petrozavodsk Winter 2007. D.Gozman Contest
115
3690
1691
Algorithm Complexity
Petrozavodsk Winter 2009. USU Contest
114
3167
1380
Ostap's Chess
Petrozavodsk Summer 2005. Moscow+Ural Contest
113
4155
1812
The Island of Bad Luck 2
Petrozavodsk Summer 2010. Tavrida NU Contest
112
2757
1478
Spy Satellites
Petrozavodsk Summer 2006. Ural+Orel Contest
110
3964
1956
Fire Signals
Petrozavodsk Winter 2013. Kontur Cup. ChU 2013 Selection
106
2341
1460
Wires
Petrozavodsk Winter 2006. USU Contest
105
4173
1850
Space Tourism
Petrozavodsk Summer 2010. USU Contest
104
2794
1953
Biggest Inscribed Ellipse
Petrozavodsk Winter 2013. Kontur Cup. ChU 2013 Selection
103
2403
1814
Continued Fraction
Petrozavodsk Summer 2010. Tavrida NU Contest
101
3030
1661
Dodecahedron
Petrozavodsk Winter 2008. USU Contest
98
3703
1479
Scheduled Checking
Petrozavodsk Summer 2006. Ural+Orel Contest
96
4487
1559
TruCoders Linguistics
Petrozavodsk Summer 2007. NSU Contest
93
4279
2124
Algebra on Segment
Petrozavodsk Summer 2018. umnik_team Contest
93
1267
1384
Goat in the Garden 4
Petrozavodsk Summer 2005. Moscow+Ural Contest
92
5010
2041
Nanomatryoshkas
Petrozavodsk Summer 2014. Ural FU Dandelion Contest
92
2308
1751
Improbability Theory
Petrozavodsk Summer 2009. Ufa SATU Contest
90
3662
1391
Snake
Petrozavodsk Summer 2005. Moscow+Ural Contest
86
5323
1618
Arrays Printing
Petrozavodsk Winter 2008. ITMO Contest
85
4325
2118
Cipher Message 4
Petrozavodsk Summer 2018. umnik_team Contest
84
1389
2038
Minimum Vertex Cover
Petrozavodsk Summer 2014. Ural FU Dandelion Contest
83
2531
2044
31 Palindromes
Petrozavodsk Summer 2014. Ural FU Dandelion Contest
83
2531
1473
Farm 2
Petrozavodsk Summer 2006. Ural+Orel Contest
80
5285
1621
Definite Integral
Petrozavodsk Winter 2008. ITMO Contest
80
4565
1955
Boss, I Can See You!
Petrozavodsk Winter 2013. Kontur Cup. ChU 2013 Selection
80
3017
1662
Goat in the Garden 6
Petrozavodsk Winter 2008. USU Contest
77
4596
1858
Magic Cube
Petrozavodsk Summer 2011. Ural SU Team.GOV Contest
76
3698
1856
War and Peace
Petrozavodsk Summer 2011. Ural SU Team.GOV Contest
75
3742
2126
Partition into Teams
Petrozavodsk Summer 2018. umnik_team Contest
75
1536
1810
Antiequations
Petrozavodsk Summer 2010. Tavrida NU Contest
74
4004
1624
Go out of here!
Petrozavodsk Winter 2008. ITMO Contest
72
5010
1843
Cutting a Parallelepiped
Petrozavodsk Summer 2010. USU Contest
69
4031
1815
Farm in San Andreas
Petrozavodsk Summer 2010. Tavrida NU Contest
67
4368
1859
Last Season of Team.GOV
Petrozavodsk Summer 2011. Ural SU Team.GOV Contest
66
4185
1958
Algorithm of Professor Ivanov
Petrozavodsk Winter 2013. Kontur Cup. ChU 2013 Selection
64
3669
1847
Zamkadye
Petrozavodsk Summer 2010. USU Contest
63
4363
2120
Tree Average Weight
Petrozavodsk Summer 2018. umnik_team Contest
63
1788
1697
Sniper Shot
Petrozavodsk Winter 2009. USU Contest
62
5453
1954
Five Palindromes
Petrozavodsk Winter 2013. Kontur Cup. ChU 2013 Selection
62
3771
1668
Death Star 2
Petrozavodsk Winter 2008. USU Contest
60
5713
1845
Integer-valued Complex Determinant
Petrozavodsk Summer 2010. USU Contest
60
4550
1678
Space Poker 3
Petrozavodsk Summer 2008. USU Contest
57
5941
1674
Drunk King
Petrozavodsk Summer 2008. USU Contest
56
6031
1848
Fly Hunt
Petrozavodsk Summer 2010. USU Contest
53
5055
1660
The Island of Bad Luck
Petrozavodsk Winter 2008. USU Contest
52
6450
2042
Nikita
Petrozavodsk Summer 2014. Ural FU Dandelion Contest
49
3990
1390
Shots at Walls
Petrozavodsk Summer 2005. Moscow+Ural Contest
44
9463
2043
Kirill the Gardener 2
Petrozavodsk Summer 2014. Ural FU Dandelion Contest
44
4359
1383
Flower-garden Designs
Petrozavodsk Summer 2005. Moscow+Ural Contest
43
9642
1626
Interfering Segment
Petrozavodsk Winter 2008. ITMO Contest
42
7901
1957
Mundial
Petrozavodsk Winter 2013. Kontur Cup. ChU 2013 Selection
39
5541
1556
Multishot in the Secret Cow Level
Petrozavodsk Summer 2007. NSU Contest
38
9182
1842
Local Roots
Petrozavodsk Summer 2010. USU Contest
38
6635
1819
Professional Approach
Petrozavodsk Summer 2010. Tavrida NU Contest
37
7157
1555
Find the Treasure!
Petrozavodsk Summer 2007. NSU Contest
36
9581
1853
Laser Technologies
Petrozavodsk Summer 2011. Ural SU Team.GOV Contest
33
7396
2125
Continue the Sequence
Petrozavodsk Summer 2018. umnik_team Contest
29
3347
1672
Droid flies
Petrozavodsk Summer 2008. USU Contest
27
10758
2127
Determinant of a Graph
Petrozavodsk Summer 2018. umnik_team Contest
27
3528
1693
Loyd's Problem
Petrozavodsk Winter 2009. USU Contest
26
10907
1524
Men in Black
Petrozavodsk Winter 2007. D.Gozman Contest
25
13177
2039
Striped Square
Petrozavodsk Summer 2014. Ural FU Dandelion Contest
23
7133
1388
Photo
Petrozavodsk Summer 2005. Moscow+Ural Contest
21
16484
2122
Hamming
Petrozavodsk Summer 2018. umnik_team Contest
17
4835
1952
To Kill the Dragon
Petrozavodsk Winter 2013. Kontur Cup. ChU 2013 Selection
13
11804
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