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Solved problems:
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ID
Title
Source
Authors
Difficulty
1293
Eniya
Spring School Contest 2004
34558
15
1409
Two Gangsters
Autumn School Contest 2005
33113
15
1877
Bicycle Codes
Ural Regional School Programming Contest 2011
16850
19
1264
Workdays
Autumn School Contest 2003
23737
21
2001
Mathematicians and Berries
Ural Regional School Programming Contest 2013
12346
21
1787
Turn for MEGA
Ural Regional School Programming Contest 2010
14067
25
2066
Simple Expression
Ural Regional School Programming Contest 2015
7905
27
1197
Lonesome Knight
Spring School Contest 2002
17751
28
1880
Psych Up's Eigenvalues
Ural Regional School Programming Contest 2011
10632
30
1639
Chocolate 2
Autumn School Contest 2008
12729
32
1209
1, 10, 100, 1000...
Autumn School Contest 2002
14470
34
1924
Four Imps
Ural Regional School Programming Contest 2012
7833
37
1581
Teamwork
Autumn School Contest 2007
10952
40
1263
Elections
Autumn School Contest 2003
11778
43
1327
Fuses
Autumn School Contest 2004
10913
47
1493
One Step from Happiness
Autumn School Contest 2006
10089
47
1496
Spammer
Autumn School Contest 2006
9732
49
1349
Farm
Spring School Contest 2005
10106
50
1196
History Exam
Spring School Contest 2002
9210
53
1876
Centipede's Morning
Ural Regional School Programming Contest 2011
6001
53
1881
Long problem statement
Ural Regional School Programming Contest 2011
5337
59
2025
Line Fighting
Ural Regional School Programming Contest 2014
4042
59
1723
Sandro's Book
Ural Regional School Programming Contest 2009
6116
61
1296
Hyperjump
Spring School Contest 2004
7757
65
1925
British Scientists Save the World
Ural Regional School Programming Contest 2012
4387
66
2111
Plato
University academic school olympiad in informatics 2019
2015
66
1025
Democracy in Danger
Autumn School Contest 2000
22779
67
1083
Factorials!!!
Spring School Contest 2001
19821
67
2002
Test Task
Ural Regional School Programming Contest 2013
3822
69
1119
Metro
Autumn School Contest 2001
6930
71
2035
Another Dress Rehearsal
Ural Regional School Programming Contest 2014
3304
72
1290
Sabotage
Spring School Contest 2004
6359
79
1404
Easy to Hack!
Autumn School Contest 2005
6353
80
1792
Hamming Code
Ural Regional School Programming Contest 2010
4273
81
2031
Overturned Numbers
Ural Regional School Programming Contest 2014
2934
81
1194
Handshakes
Spring School Contest 2002
6005
82
1297
Palindrome
Spring School Contest 2004
6182
82
1120
Sum of Sequential Numbers
Autumn School Contest 2001
5610
87
2005
Taxi for Programmers
Ural Regional School Programming Contest 2013
2973
88
1330
Intervals
Autumn School Contest 2004
5270
96
1494
Monobilliards
Autumn School Contest 2006
4927
96
1642
1D Maze
Autumn School Contest 2008
4241
96
2011
Long Statement
Ural Regional School Programming Contest 2013
2701
97
1644
A Whole Lot of Walnuts
Autumn School Contest 2008
4121
98
1020
Rope
Autumn School Contest 2000
15338
99
2068
Game of Nuts
Ural Regional School Programming Contest 2015
2128
100
1214
Strange Procedure
Autumn School Contest 2002
4893
101
2033
Devices
Ural Regional School Programming Contest 2014
2348
101
2138
The Good, the Bad and the Ugly
Ural School Programming Contest 2019
1200
101
1731
Dill
Ural Regional School Programming Contest 2009
3666
102
1118
Nontrivial Numbers
Autumn School Contest 2001
4737
103
1353
Milliard Vasya's Function
Spring School Contest 2005
4917
104
1086
Cryptography
Spring School Contest 2001
12626
105
1786
Sandro's Biography
Ural Regional School Programming Contest 2010
3275
105
1573
Alchemy
Autumn School Contest 2007
4129
106
1796
Amusement Park
Ural Regional School Programming Contest 2010
3259
106
1192
Ball in a Dream
Spring School Contest 2002
4540
108
1260
Nudnik Photographer
Autumn School Contest 2003
4542
110
2142
Magic
Ural School Programming Contest 2019
1030
118
1123
Salary
Autumn School Contest 2001
4044
121
1336
Problem of Ben Betsalel
Autumn School Contest 2004
4183
121
1082
Gaby Ivanushka
Spring School Contest 2001
10794
123
2010
Sasha the Young Grandmaster
Ural Regional School Programming Contest 2013
2076
126
1402
Cocktails
Autumn School Contest 2005
3975
128
1726
Visits
Ural Regional School Programming Contest 2009
2907
129
1352
Mersenne Primes
Spring School Contest 2005
3913
130
2149
Pigeonhole Principle
Ural School Programming Contest 2019
888
137
1725
Sold Out!
Ural Regional School Programming Contest 2009
2716
138
1354
Palindrome. Again Palindrome
Spring School Contest 2005
3670
139
1022
Genealogical Tree
Autumn School Contest 2000
10840
140
1572
Yekaterinozavodsk Great Well
Autumn School Contest 2007
3038
144
1576
Telephone Tariffs
Autumn School Contest 2007
3022
145
1021
Sacrament of the Sum
Autumn School Contest 2000
10393
146
1084
Goat in the Garden
Spring School Contest 2001
8935
149
1295
Crazy Notions
Spring School Contest 2004
3345
150
2000
Grand Theft Array V
Ural Regional School Programming Contest 2013
1744
150
1788
On the Benefits of Umbrellas
Ural Regional School Programming Contest 2010
2227
155
1026
Questions and Answers
Autumn School Contest 2000
9739
156
1210
Kind Spirits
Autumn School Contest 2002
3047
162
1930
Ivan's Car
Ural Regional School Programming Contest 2012
1737
166
1213
Cockroaches!
Autumn School Contest 2002
2933
169
1640
Circle of Winter
Autumn School Contest 2008
2341
173
1401
Gamers
Autumn School Contest 2005
2882
177
1193
Queue at the Exam
Spring School Contest 2002
2717
180
1335
White Thesis
Autumn School Contest 2004
2817
180
1348
Goat in the Garden 2
Spring School Contest 2005
2770
184
1874
Football Goal
Ural Regional School Programming Contest 2011
1658
190
1794
Masterpieces of World Architecture
Ural Regional School Programming Contest 2010
1785
193
1727
Znaika's Magic Numbers
Ural Regional School Programming Contest 2009
1911
196
1490
Fire Circle
Autumn School Contest 2006
2397
197
1645
Ski Race
Autumn School Contest 2008
2052
197
2072
Kirill the Gardener 3
Ural Regional School Programming Contest 2015
1076
198
2115
The Knowledge Day
University academic school olympiad in informatics 2019
654
202
1878
Rubinchik's Cube
Ural Regional School Programming Contest 2011
1527
206
2069
Hard Rock
Ural Regional School Programming Contest 2015
1030
206
1491
Unreal Story
Autumn School Contest 2006
2260
209
1789
Searching for the Dodecahedron
Ural Regional School Programming Contest 2010
1635
210
1355
Bald Spot Revisited
Spring School Contest 2005
2408
211
1023
Buttons
Autumn School Contest 2000
7123
213
1333
Genie Bomber 2
Autumn School Contest 2004
2337
217
2070
Interesting Numbers
Ural Regional School Programming Contest 2015
970
219
2073
Log Files
Ural Regional School Programming Contest 2015
965
220
2144
Cleaning the Room
Ural School Programming Contest 2019
535
225
1298
Knight
Spring School Contest 2004
2169
232
2141
Sasha Vilkin
Ural School Programming Contest 2019
505
238
1795
Husband in a Shop
Ural Regional School Programming Contest 2010
1414
243
1191
Catch the thief!
Spring School Contest 2002
1998
245
1122
Game
Autumn School Contest 2001
1975
247
1195
Ouths and Crosses
Spring School Contest 2002
1887
259
2062
Ambitious Experiment
Ural Regional School Programming Contest 2015
783
270
1087
The Time to Take Stones
Spring School Contest 2001
4900
271
1117
Hierarchy
Autumn School Contest 2001
1765
276
2034
Caravans
Ural Regional School Programming Contest 2014
815
289
2065
Different Sums
Ural Regional School Programming Contest 2015
726
291
1356
Something Easier
Spring School Contest 2005
1719
295
1497
Cutting a Square
Autumn School Contest 2006
1581
298
1215
Exactness of Projectile Hit
Autumn School Contest 2002
1652
299
1922
Superhero Team
Ural Regional School Programming Contest 2012
946
303
2067
Friends and Berries
Ural Regional School Programming Contest 2015
696
304
1190
Bar of Chocolate
Spring School Contest 2002
1592
307
1211
Collective Guarantee
Autumn School Contest 2002
1598
309
1294
Mars Satellites
Spring School Contest 2004
1610
312
1024
Permutations
Autumn School Contest 2000
4816
314
2024
Adventure Time
Ural Regional School Programming Contest 2014
742
317
1116
Piecewise Constant Function
Autumn School Contest 2001
1482
328
1261
Tips
Autumn School Contest 2003
1514
330
1495
One-two, One-two 2
Autumn School Contest 2006
1394
338
1406
Next Number
Autumn School Contest 2005
1479
344
2003
Simple Magic
Ural Regional School Programming Contest 2013
754
344
1121
Branches
Autumn School Contest 2001
1404
346
2145
Olympiad for Everyone
Ural School Programming Contest 2019
344
347
1403
Courier
Autumn School Contest 2005
1453
350
1574
Mathematicians and brackets
Autumn School Contest 2007
1239
352
1873
GOV Chronicles
Ural Regional School Programming Contest 2011
887
354
1929
Teddybears are not for Everyone
Ural Regional School Programming Contest 2012
777
368
1292
Mars Space Stations
Spring School Contest 2004
1331
376
1648
Yachts
Autumn School Contest 2008
1064
378
1291
Gear-wheels
Spring School Contest 2004
1307
383
1407
One-two, One-two
Autumn School Contest 2005
1325
384
1793
Tray 2
Ural Regional School Programming Contest 2010
890
385
1262
Pseudo-Roman Number
Autumn School Contest 2003
1286
388
2113
Survive the flood
University academic school olympiad in informatics 2019
336
388
1489
Points on a Parallelepiped
Autumn School Contest 2006
1208
390
1259
How to Become Star?
Autumn School Contest 2003
1268
393
1350
Canteen
Spring School Contest 2005
1289
393
2063
Black and White
Ural Regional School Programming Contest 2015
514
409
1258
Pool
Autumn School Contest 2003
1196
417
1643
Attack of the Dark Fortress
Autumn School Contest 2008
954
421
1329
Galactic History
Autumn School Contest 2004
1093
461
1577
E-mail
Autumn School Contest 2007
924
471
2148
Insane Shot
Ural School Programming Contest 2019
244
483
1212
Battleship
Autumn School Contest 2002
1008
487
2030
Awesome Backup System
Ural Regional School Programming Contest 2014
479
488
1579
Coat Transportation
Autumn School Contest 2007
886
491
1641
Duties
Autumn School Contest 2008
808
496
2167
Cipher Message 5
Ural School Programming Contest 2022
81
497
2027
URCAPL, Episode 1
Ural Regional School Programming Contest 2014
461
506
1728
Curse on Team.GOV
Ural Regional School Programming Contest 2009
712
520
1351
Good Gnusmas – Dead Gnusmas
Spring School Contest 2005
966
523
2117
Polyphemus' triples
University academic school olympiad in informatics 2019
246
525
1923
Scary Politics
Ural Regional School Programming Contest 2012
537
530
1334
Checkers
Autumn School Contest 2004
934
538
1358
Cables
Spring School Contest 2005
932
542
1400
Cellular Characters
Autumn School Contest 2005
928
546
2026
Dean and Schedule
Ural Regional School Programming Contest 2014
411
566
2156
Interesting Conversations
Ural School Programming Contest 2020
155
581
2029
Towers of Hanoi Strike Back
Ural Regional School Programming Contest 2014
397
586
1085
Meeting
Spring School Contest 2001
2152
616
1729
Dead Man's Chest
Ural Regional School Programming Contest 2009
599
617
2071
Juice Cocktails
Ural Regional School Programming Contest 2015
336
620
1332
Genie Bomber
Autumn School Contest 2004
808
621
1027
D++ Again
Autumn School Contest 2000
2425
623
2146
Quiz Show
Ural School Programming Contest 2019
187
623
2143
Victoria!
Ural School Programming Contest 2019
183
636
1724
Origin of Man Clarified
Ural Regional School Programming Contest 2009
572
645
1884
Way to the University
Ural Regional School Programming Contest 2011
482
645
1405
Goat in the Garden 5
Autumn School Contest 2005
709
712
1088
Ilya Murometz
Spring School Contest 2001
1807
733
2004
Scientists from Spilkovo
Ural Regional School Programming Contest 2013
348
734
2172
Meta-statement 2
Ural School Programming Contest 2022
51
741
1928
Another Ecology Problem
Ural Regional School Programming Contest 2012
375
752
2032
Conspiracy Theory and Rebranding
Ural Regional School Programming Contest 2014
306
754
2112
Battle log
University academic school olympiad in informatics 2019
168
755
2173
Meta-statement 3
Ural School Programming Contest 2022
46
807
2161
Mount & Blade
Ural School Programming Contest 2021
46
808
2009
Canteen Line
Ural Regional School Programming Contest 2013
313
813
2028
URCAPL, Episode 2
Ural Regional School Programming Contest 2014
282
816
1647
Divide an Island!
Autumn School Contest 2008
480
829
1089
Verification with the Dictionary
Spring School Contest 2001
1594
831
2116
He is not a knight for you
University academic school olympiad in informatics 2019
149
845
1575
Yekaterinburg Subway 2
Autumn School Contest 2007
499
864
2151
Mahjong
Ural School Programming Contest 2020
101
864
1578
Mammoth Hunt
Autumn School Contest 2007
494
873
1580
Dean's Debts
Autumn School Contest 2007
489
882
1646
Godzilla Strikes Back!
Autumn School Contest 2008
449
885
1498
Stroke at Full Speed
Autumn School Contest 2006
524
889
2155
Quadrocopter
Ural School Programming Contest 2020
94
922
2064
Caterpillars
Ural Regional School Programming Contest 2015
221
929
2114
My craft
University academic school olympiad in informatics 2019
134
933
2153
Perfect Squad
Ural School Programming Contest 2020
92
940
1875
Angry Birds
Ural Regional School Programming Contest 2011
323
953
1331
Vladislava
Autumn School Contest 2004
500
996
1926
The Tournament of Intelligences
Ural Regional School Programming Contest 2012
278
1006
2150
4B and Zoo
Ural School Programming Contest 2020
85
1009
2152
Tax Fees
Ural School Programming Contest 2020
84
1020
2008
Swifty
Ural Regional School Programming Contest 2013
244
1034
1927
Herbs and Magic
Ural Regional School Programming Contest 2012
266
1050
2140
BitMazeCraft
Ural School Programming Contest 2019
102
1096
1730
ManBearPig
Ural Regional School Programming Contest 2009
327
1115
2160
Meta-statement
Ural School Programming Contest 2021
30
1132
1359
Construction
Spring School Contest 2005
431
1157
1883
Ent's Birthday
Ural Regional School Programming Contest 2011
258
1184
2162
Graphmania
Ural School Programming Contest 2021
28
1189
1357
Teakettle 1.0 for Dummies
Spring School Contest 2005
417
1195
1408
Polynomial Multiplication
Autumn School Contest 2005
414
1207
2157
Skydiving
Ural School Programming Contest 2020
69
1213
1921
Chaos and Order
Ural Regional School Programming Contest 2012
228
1217
1722
Observation Deck
Ural Regional School Programming Contest 2009
275
1318
1790
Searching for the Truth
Ural Regional School Programming Contest 2010
246
1352
1347
Blog
Spring School Contest 2005
359
1383
1328
Fireball
Autumn School Contest 2004
352
1404
2171
Two Progressions 2
Ural School Programming Contest 2022
22
1412
2159
Essay
Ural School Programming Contest 2021
22
1414
1879
GOV-internship 2
Ural Regional School Programming Contest 2011
214
1417
1791
Uncle Styopa and Buses
Ural Regional School Programming Contest 2010
233
1424
2163
Interview
Ural School Programming Contest 2021
21
1456
1499
Kerchiefs
Autumn School Contest 2006
310
1484
1299
Psylonians
Spring School Contest 2004
319
1535
2158
Two progressions
Ural School Programming Contest 2021
19
1556
1337
Bureaucracy
Autumn School Contest 2004
316
1559
2164
Bookmaker
Ural School Programming Contest 2021
18
1616
2170
Experiment with Juice 2
Ural School Programming Contest 2022
17
1673
2166
Two Roads
Ural School Programming Contest 2022
16
1737
1257
Hyphenation
Autumn School Contest 2003
278
1744
2165
Cake Cutter
Ural School Programming Contest 2021
15
1808
2147
City Building
Ural School Programming Contest 2019
56
1860
2007
Mutants versus Machines
Ural Regional School Programming Contest 2013
129
1889
1492
Vasya's Dad 2
Autumn School Contest 2006
227
2003
2169
City Building 2
Ural School Programming Contest 2022
11
2151
2154
Flight on a Cannonball
Ural School Programming Contest 2020
32
2282
1882
Old Nokia
Ural Regional School Programming Contest 2011
107
2712
2168
Runes in the Field
Ural School Programming Contest 2022
5
3011
2006
Kirill the Gardener
Ural Regional School Programming Contest 2013
57
3920
2139
Experiment with Juice
Ural School Programming Contest 2019
20
4092
Solved problems:
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