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Problem set. Volume 9
Solved problems:
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Volume 8
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ID
Title
Source
Authors
Difficulty
1877
Bicycle Codes
Ural Regional School Programming Contest 2011
17397
19
1820
Ural Steaks
USU Personal Contest 2011
13776
25
1880
Psych Up's Eigenvalues
Ural Regional School Programming Contest 2011
10969
30
1876
Centipede's Morning
Ural Regional School Programming Contest 2011
6123
54
1837
Isenbaev's Number
Ural Championship 2011
5811
59
1893
A380
NEERC 2011 Eastern Subregional
5627
59
1881
Long problem statement
Ural Regional School Programming Contest 2011
5453
61
1846
GCD 2010
Petrozavodsk Summer 2010. USU Contest
2183
152
1868
Prediction Contest
Ural FU Championship 2011
2136
155
1800
Murphy's Law
NEERC 2010 Eastern Subregional
2102
170
1821
Biathlon
USU Personal Contest 2011
1986
174
1864
Get-Together at Den's
Ural FU Championship 2011
1919
172
1806
Mobile Telegraphs
NEERC 2010 Eastern Subregional
1889
189
1874
Football Goal
Ural Regional School Programming Contest 2011
1700
194
1885
Passenger Comfort
NEERC 2011 Eastern Subregional
1683
195
1878
Rubinchik's Cube
Ural Regional School Programming Contest 2011
1556
212
1869
New Year Cruise
Ural FU Championship 2011
1408
234
1826
Minefield
USU Personal Contest 2011
1128
306
1889
Airport Announcements
NEERC 2011 Eastern Subregional
1093
300
1823
Ideal Gas
USU Personal Contest 2011
1011
341
1873
GOV Chronicles
Ural Regional School Programming Contest 2011
912
359
1804
The Machinegunners in a Playoff
NEERC 2010 Eastern Subregional
879
403
1854
Negotiations with Parthians
Petrozavodsk Summer 2011. Ural SU Team.GOV Contest
788
418
1828
Approximation by a Progression
USU Personal Contest 2011
730
470
1860
Fiborial
Petrozavodsk Summer 2011. Ural SU Team.GOV Contest
715
460
1888
Pilot Work Experience
NEERC 2011 Eastern Subregional
711
459
1890
Money out of Thin Air
NEERC 2011 Eastern Subregional
711
459
1809
Chapaev and Potatoes
NEERC 2010 Eastern Subregional
594
594
1871
Seismic Waves
Ural FU Championship 2011
530
615
1803
The Czechs' Rifles
NEERC 2010 Eastern Subregional
500
703
1822
Hugo II's War
USU Personal Contest 2011
498
685
1884
Way to the University
Ural Regional School Programming Contest 2011
494
658
1838
Samurai's Stroke
Ural Championship 2011
472
715
1870
Zinium 2
Ural FU Championship 2011
466
697
1891
Language Ocean
NEERC 2011 Eastern Subregional
466
695
1866
Poetic Foot
Ural FU Championship 2011
432
751
1872
Spacious Office
Ural FU Championship 2011
412
787
1825
Ifrit Bomber 2
USU Personal Contest 2011
367
922
1892
Morning in Koltsovo
NEERC 2011 Eastern Subregional
363
887
1830
Help in the RNOS
Ural Championship 2011
358
936
1832
Arirang Show
Ural Championship 2011
356
941
1805
Chapaev and a Cipher Grille
NEERC 2010 Eastern Subregional
346
1007
1817
Merry-go-round
Petrozavodsk Summer 2010. Tavrida NU Contest
336
1016
1875
Angry Birds
Ural Regional School Programming Contest 2011
332
969
1861
Graveyard in Deyja
Petrozavodsk Summer 2011. Ural SU Team.GOV Contest
320
1011
1824
Ifrit Bomber
USU Personal Contest 2011
317
1063
1887
Frequent Flyer Card
NEERC 2011 Eastern Subregional
299
1071
1863
Peaceful Atom
Ural FU Championship 2011
297
1081
1827
Indigenous Wars
USU Personal Contest 2011
285
1179
1836
Babel Fish
Ural Championship 2011
283
1176
1883
Ent's Birthday
Ural Regional School Programming Contest 2011
265
1205
1862
Very Wealthy Mole
Ural FU Championship 2011
252
1267
1855
Trade Guilds of Erathia
Petrozavodsk Summer 2011. Ural SU Team.GOV Contest
246
1303
1896
War Games 2.1
239
877
1857
Alice and Bandersnatch
Petrozavodsk Summer 2011. Ural SU Team.GOV Contest
236
1356
1811
Dual-SIM Phone
Petrozavodsk Summer 2010. Tavrida NU Contest
234
1440
1807
Cartridges for Maxim
NEERC 2010 Eastern Subregional
233
1475
1879
GOV-internship 2
Ural Regional School Programming Contest 2011
218
1454
1894
Non-Flying Weather
NEERC 2011 Eastern Subregional
216
1464
1813
Random Shuffler
Petrozavodsk Summer 2010. Tavrida NU Contest
208
1612
1844
Warlord of the Army of Mages
Petrozavodsk Summer 2010. USU Contest
204
1560
1851
GOV-internship
Petrozavodsk Summer 2011. Ural SU Team.GOV Contest
181
1746
1808
Chapaev at the Planet Ocean
NEERC 2010 Eastern Subregional
172
1970
1818
Fair Fishermen
Petrozavodsk Summer 2010. Tavrida NU Contest
166
1997
1833
Hopes of Rowing
Ural Championship 2011
161
2015
1802
Cube Puzzle
NEERC 2010 Eastern Subregional
160
2109
1886
Trip 2
NEERC 2011 Eastern Subregional
148
2094
1841
Cableways
Petrozavodsk Summer 2010. USU Contest
144
2168
1895
Steaks on Board
NEERC 2011 Eastern Subregional
143
2163
1816
Troubles with Pollard
Petrozavodsk Summer 2010. Tavrida NU Contest
135
2423
1831
Tsyfirkin's Lesson
Ural Championship 2011
134
2393
1839
The Mentaculus
Ural Championship 2011
124
2571
1849
Rabbit Hunt 2
Petrozavodsk Summer 2010. USU Contest
123
2511
1852
Cube in a Cube in a Cube
Petrozavodsk Summer 2011. Ural SU Team.GOV Contest
121
2546
1867
Nanotechnologies
Ural FU Championship 2011
119
2573
1812
The Island of Bad Luck 2
Petrozavodsk Summer 2010. Tavrida NU Contest
112
2880
1850
Space Tourism
Petrozavodsk Summer 2010. USU Contest
110
2783
1882
Old Nokia
Ural Regional School Programming Contest 2011
110
2762
1814
Continued Fraction
Petrozavodsk Summer 2010. Tavrida NU Contest
105
3056
1835
Swamp Doctor
Ural Championship 2011
98
3190
1829
Routing Tables
USU Personal Contest 2011
94
3344
1865
The Island of Märket
Ural FU Championship 2011
88
3387
1856
War and Peace
Petrozavodsk Summer 2011. Ural SU Team.GOV Contest
76
3878
1858
Magic Cube
Petrozavodsk Summer 2011. Ural SU Team.GOV Contest
76
3878
1810
Antiequations
Petrozavodsk Summer 2010. Tavrida NU Contest
73
4234
1815
Farm in San Andreas
Petrozavodsk Summer 2010. Tavrida NU Contest
69
4448
1843
Cutting a Parallelepiped
Petrozavodsk Summer 2010. USU Contest
69
4227
1859
Last Season of Team.GOV
Petrozavodsk Summer 2011. Ural SU Team.GOV Contest
69
4221
1847
Zamkadye
Petrozavodsk Summer 2010. USU Contest
66
4394
1848
Fly Hunt
Petrozavodsk Summer 2010. USU Contest
63
4575
1834
Tennis Racket
Ural Championship 2011
62
4785
1845
Integer-valued Complex Determinant
Petrozavodsk Summer 2010. USU Contest
62
4638
1801
The Revolution Cup
NEERC 2010 Eastern Subregional
54
5602
1842
Local Roots
Petrozavodsk Summer 2010. USU Contest
45
6072
1819
Professional Approach
Petrozavodsk Summer 2010. Tavrida NU Contest
38
7321
1853
Laser Technologies
Petrozavodsk Summer 2011. Ural SU Team.GOV Contest
34
7579
1840
Victim of Advertising
Ural Championship 2011
31
8404
1897
Alice and Bob and a string
16
6313
Solved problems:
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