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Problem set. School Contests
Solved problems:
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difficulty
ID
Title
Source
Authors
Difficulty
1020
Rope
Autumn School Contest 2000
15531
99
1021
Sacrament of the Sum
Autumn School Contest 2000
10496
146
1022
Genealogical Tree
Autumn School Contest 2000
10910
141
1023
Buttons
Autumn School Contest 2000
7160
214
1024
Permutations
Autumn School Contest 2000
4839
317
1025
Democracy in Danger
Autumn School Contest 2000
23048
67
1026
Questions and Answers
Autumn School Contest 2000
9845
156
1027
D++ Again
Autumn School Contest 2000
2435
629
1082
Gaby Ivanushka
Spring School Contest 2001
10844
125
1083
Factorials!!!
Spring School Contest 2001
20017
67
1084
Goat in the Garden
Spring School Contest 2001
9045
149
1085
Meeting
Spring School Contest 2001
2163
622
1086
Cryptography
Spring School Contest 2001
12784
106
1087
The Time to Take Stones
Spring School Contest 2001
4926
274
1088
Ilya Murometz
Spring School Contest 2001
1812
742
1089
Verification with the Dictionary
Spring School Contest 2001
1606
836
1116
Piecewise Constant Function
Autumn School Contest 2001
1496
330
1117
Hierarchy
Autumn School Contest 2001
1776
278
1118
Nontrivial Numbers
Autumn School Contest 2001
4799
103
1119
Metro
Autumn School Contest 2001
7022
71
1120
Sum of Sequential Numbers
Autumn School Contest 2001
5712
87
1121
Branches
Autumn School Contest 2001
1415
348
1122
Game
Autumn School Contest 2001
1992
248
1123
Salary
Autumn School Contest 2001
4090
121
1190
Bar of Chocolate
Spring School Contest 2002
1607
309
1191
Catch the thief!
Spring School Contest 2002
2013
247
1192
Ball in a Dream
Spring School Contest 2002
4588
109
1193
Queue at the Exam
Spring School Contest 2002
2755
180
1194
Handshakes
Spring School Contest 2002
6052
82
1195
Ouths and Crosses
Spring School Contest 2002
1917
259
1196
History Exam
Spring School Contest 2002
9381
53
1197
Lonesome Knight
Spring School Contest 2002
17970
28
1209
1, 10, 100, 1000...
Autumn School Contest 2002
14636
34
1210
Kind Spirits
Autumn School Contest 2002
3073
163
1211
Collective Guarantee
Autumn School Contest 2002
1613
310
1212
Battleship
Autumn School Contest 2002
1017
490
1213
Cockroaches!
Autumn School Contest 2002
2956
170
1214
Strange Procedure
Autumn School Contest 2002
4947
101
1215
Exactness of Projectile Hit
Autumn School Contest 2002
1667
300
1257
Hyphenation
Autumn School Contest 2003
281
1749
1258
Pool
Autumn School Contest 2003
1212
417
1259
How to Become Star?
Autumn School Contest 2003
1281
394
1260
Nudnik Photographer
Autumn School Contest 2003
4601
110
1261
Tips
Autumn School Contest 2003
1542
328
1262
Pseudo-Roman Number
Autumn School Contest 2003
1300
389
1263
Elections
Autumn School Contest 2003
11954
43
1264
Workdays
Autumn School Contest 2003
24169
21
1290
Sabotage
Spring School Contest 2004
6409
80
1291
Gear-wheels
Spring School Contest 2004
1323
384
1292
Mars Space Stations
Spring School Contest 2004
1343
378
1293
Eniya
Spring School Contest 2004
35191
15
1294
Mars Satellites
Spring School Contest 2004
1618
314
1295
Crazy Notions
Spring School Contest 2004
3391
150
1296
Hyperjump
Spring School Contest 2004
7940
64
1297
Palindrome
Spring School Contest 2004
6248
82
1298
Knight
Spring School Contest 2004
2187
233
1299
Psylonians
Spring School Contest 2004
323
1536
1327
Fuses
Autumn School Contest 2004
11030
47
1328
Fireball
Autumn School Contest 2004
356
1406
1329
Galactic History
Autumn School Contest 2004
1104
462
1330
Intervals
Autumn School Contest 2004
5375
96
1331
Vladislava
Autumn School Contest 2004
505
999
1332
Genie Bomber
Autumn School Contest 2004
816
623
1333
Genie Bomber 2
Autumn School Contest 2004
2370
216
1334
Checkers
Autumn School Contest 2004
943
540
1335
White Thesis
Autumn School Contest 2004
2839
181
1336
Problem of Ben Betsalel
Autumn School Contest 2004
4221
122
1337
Bureaucracy
Autumn School Contest 2004
320
1560
1347
Blog
Spring School Contest 2005
365
1378
1348
Goat in the Garden 2
Spring School Contest 2005
2830
182
1349
Farm
Spring School Contest 2005
10209
51
1350
Canteen
Spring School Contest 2005
1302
394
1351
Good Gnusmas – Dead Gnusmas
Spring School Contest 2005
974
525
1352
Mersenne Primes
Spring School Contest 2005
3947
131
1353
Milliard Vasya's Function
Spring School Contest 2005
4996
103
1354
Palindrome. Again Palindrome
Spring School Contest 2005
3733
138
1355
Bald Spot Revisited
Spring School Contest 2005
2438
211
1356
Something Easier
Spring School Contest 2005
1735
296
1357
Teakettle 1.0 for Dummies
Spring School Contest 2005
425
1188
1358
Cables
Spring School Contest 2005
945
541
1359
Construction
Spring School Contest 2005
437
1156
1400
Cellular Characters
Autumn School Contest 2005
935
549
1401
Gamers
Autumn School Contest 2005
2947
175
1402
Cocktails
Autumn School Contest 2005
4011
129
1403
Courier
Autumn School Contest 2005
1471
350
1404
Easy to Hack!
Autumn School Contest 2005
6456
80
1405
Goat in the Garden 5
Autumn School Contest 2005
713
717
1406
Next Number
Autumn School Contest 2005
1496
344
1407
One-two, One-two
Autumn School Contest 2005
1336
385
1408
Polynomial Multiplication
Autumn School Contest 2005
420
1206
1409
Two Gangsters
Autumn School Contest 2005
33741
15
1489
Points on a Parallelepiped
Autumn School Contest 2006
1236
387
1490
Fire Circle
Autumn School Contest 2006
2452
196
1491
Unreal Story
Autumn School Contest 2006
2304
208
1492
Vasya's Dad 2
Autumn School Contest 2006
231
1999
1493
One Step from Happiness
Autumn School Contest 2006
10215
47
1494
Monobilliards
Autumn School Contest 2006
4995
96
1495
One-two, One-two 2
Autumn School Contest 2006
1411
339
1496
Spammer
Autumn School Contest 2006
9870
49
1497
Cutting a Square
Autumn School Contest 2006
1601
299
1498
Stroke at Full Speed
Autumn School Contest 2006
532
889
1499
Kerchiefs
Autumn School Contest 2006
317
1473
1572
Yekaterinozavodsk Great Well
Autumn School Contest 2007
3065
146
1573
Alchemy
Autumn School Contest 2007
4182
107
1574
Mathematicians and brackets
Autumn School Contest 2007
1253
354
1575
Yekaterinburg Subway 2
Autumn School Contest 2007
510
861
1576
Telephone Tariffs
Autumn School Contest 2007
3046
146
1577
E-mail
Autumn School Contest 2007
933
475
1578
Mammoth Hunt
Autumn School Contest 2007
499
879
1579
Coat Transportation
Autumn School Contest 2007
893
496
1580
Dean's Debts
Autumn School Contest 2007
491
893
1581
Teamwork
Autumn School Contest 2007
11110
40
1639
Chocolate 2
Autumn School Contest 2008
12912
32
1640
Circle of Winter
Autumn School Contest 2008
2372
174
1641
Duties
Autumn School Contest 2008
818
500
1642
1D Maze
Autumn School Contest 2008
4324
96
1643
Attack of the Dark Fortress
Autumn School Contest 2008
968
423
1644
A Whole Lot of Walnuts
Autumn School Contest 2008
4175
99
1645
Ski Race
Autumn School Contest 2008
2086
198
1646
Godzilla Strikes Back!
Autumn School Contest 2008
456
888
1647
Divide an Island!
Autumn School Contest 2008
486
835
1648
Yachts
Autumn School Contest 2008
1077
381
1722
Observation Deck
Ural Regional School Programming Contest 2009
277
1338
1723
Sandro's Book
Ural Regional School Programming Contest 2009
6230
62
1724
Origin of Man Clarified
Ural Regional School Programming Contest 2009
575
656
1725
Sold Out!
Ural Regional School Programming Contest 2009
2759
139
1726
Visits
Ural Regional School Programming Contest 2009
2952
130
1727
Znaika's Magic Numbers
Ural Regional School Programming Contest 2009
1934
198
1728
Curse on Team.GOV
Ural Regional School Programming Contest 2009
722
525
1729
Dead Man's Chest
Ural Regional School Programming Contest 2009
603
626
1730
ManBearPig
Ural Regional School Programming Contest 2009
331
1126
1731
Dill
Ural Regional School Programming Contest 2009
3723
103
1785
Lost in Localization
Ural Regional School Programming Contest 2010
22069
16
1786
Sandro's Biography
Ural Regional School Programming Contest 2010
3311
107
1787
Turn for MEGA
Ural Regional School Programming Contest 2010
14372
25
1788
On the Benefits of Umbrellas
Ural Regional School Programming Contest 2010
2244
157
1789
Searching for the Dodecahedron
Ural Regional School Programming Contest 2010
1650
214
1790
Searching for the Truth
Ural Regional School Programming Contest 2010
251
1360
1791
Uncle Styopa and Buses
Ural Regional School Programming Contest 2010
236
1443
1792
Hamming Code
Ural Regional School Programming Contest 2010
4336
82
1793
Tray 2
Ural Regional School Programming Contest 2010
898
391
1794
Masterpieces of World Architecture
Ural Regional School Programming Contest 2010
1806
195
1795
Husband in a Shop
Ural Regional School Programming Contest 2010
1428
247
1796
Amusement Park
Ural Regional School Programming Contest 2010
3297
107
1873
GOV Chronicles
Ural Regional School Programming Contest 2011
909
355
1874
Football Goal
Ural Regional School Programming Contest 2011
1687
192
1875
Angry Birds
Ural Regional School Programming Contest 2011
329
963
1876
Centipede's Morning
Ural Regional School Programming Contest 2011
6091
54
1877
Bicycle Codes
Ural Regional School Programming Contest 2011
17253
19
1878
Rubinchik's Cube
Ural Regional School Programming Contest 2011
1545
210
1879
GOV-internship 2
Ural Regional School Programming Contest 2011
216
1445
1880
Psych Up's Eigenvalues
Ural Regional School Programming Contest 2011
10863
30
1881
Long problem statement
Ural Regional School Programming Contest 2011
5429
60
1882
Old Nokia
Ural Regional School Programming Contest 2011
108
2767
1883
Ent's Birthday
Ural Regional School Programming Contest 2011
263
1196
1884
Way to the University
Ural Regional School Programming Contest 2011
489
654
1921
Chaos and Order
Ural Regional School Programming Contest 2012
235
1221
1922
Superhero Team
Ural Regional School Programming Contest 2012
958
309
1923
Scary Politics
Ural Regional School Programming Contest 2012
548
536
1924
Four Imps
Ural Regional School Programming Contest 2012
7937
38
1925
British Scientists Save the World
Ural Regional School Programming Contest 2012
4436
67
1926
The Tournament of Intelligences
Ural Regional School Programming Contest 2012
286
1011
1927
Herbs and Magic
Ural Regional School Programming Contest 2012
271
1065
1928
Another Ecology Problem
Ural Regional School Programming Contest 2012
384
759
1929
Teddybears are not for Everyone
Ural Regional School Programming Contest 2012
787
375
1930
Ivan's Car
Ural Regional School Programming Contest 2012
1793
166
2000
Grand Theft Array V
Ural Regional School Programming Contest 2013
1783
152
2001
Mathematicians and Berries
Ural Regional School Programming Contest 2013
12748
21
2002
Test Task
Ural Regional School Programming Contest 2013
3884
70
2003
Simple Magic
Ural Regional School Programming Contest 2013
768
350
2004
Scientists from Spilkovo
Ural Regional School Programming Contest 2013
353
751
2005
Taxi for Programmers
Ural Regional School Programming Contest 2013
3016
90
2006
Kirill the Gardener
Ural Regional School Programming Contest 2013
59
3949
2007
Mutants versus Machines
Ural Regional School Programming Contest 2013
133
1906
2008
Swifty
Ural Regional School Programming Contest 2013
245
1069
2009
Canteen Line
Ural Regional School Programming Contest 2013
319
828
2010
Sasha the Young Grandmaster
Ural Regional School Programming Contest 2013
2118
128
2011
Long Statement
Ural Regional School Programming Contest 2013
2746
99
2024
Adventure Time
Ural Regional School Programming Contest 2014
752
326
2025
Line Fighting
Ural Regional School Programming Contest 2014
4142
60
2026
Dean and Schedule
Ural Regional School Programming Contest 2014
420
578
2027
URCAPL, Episode 1
Ural Regional School Programming Contest 2014
465
523
2028
URCAPL, Episode 2
Ural Regional School Programming Contest 2014
286
840
2029
Towers of Hanoi Strike Back
Ural Regional School Programming Contest 2014
405
599
2030
Awesome Backup System
Ural Regional School Programming Contest 2014
490
497
2031
Overturned Numbers
Ural Regional School Programming Contest 2014
2979
83
2032
Conspiracy Theory and Rebranding
Ural Regional School Programming Contest 2014
315
765
2033
Devices
Ural Regional School Programming Contest 2014
2403
103
2034
Caravans
Ural Regional School Programming Contest 2014
848
290
2035
Another Dress Rehearsal
Ural Regional School Programming Contest 2014
3351
74
2062
Ambitious Experiment
Ural Regional School Programming Contest 2015
793
280
2063
Black and White
Ural Regional School Programming Contest 2015
530
417
2064
Caterpillars
Ural Regional School Programming Contest 2015
231
934
2065
Different Sums
Ural Regional School Programming Contest 2015
741
300
2066
Simple Expression
Ural Regional School Programming Contest 2015
8210
27
2067
Friends and Berries
Ural Regional School Programming Contest 2015
713
311
2068
Game of Nuts
Ural Regional School Programming Contest 2015
2184
103
2069
Hard Rock
Ural Regional School Programming Contest 2015
1048
213
2070
Interesting Numbers
Ural Regional School Programming Contest 2015
992
225
2071
Juice Cocktails
Ural Regional School Programming Contest 2015
350
625
2072
Kirill the Gardener 3
Ural Regional School Programming Contest 2015
1116
200
2073
Log Files
Ural Regional School Programming Contest 2015
983
227
2111
Plato
University academic school olympiad in informatics 2019
2122
68
2112
Battle log
University academic school olympiad in informatics 2019
182
761
2113
Survive the flood
University academic school olympiad in informatics 2019
349
407
2114
My craft
University academic school olympiad in informatics 2019
140
974
2115
The Knowledge Day
University academic school olympiad in informatics 2019
682
211
2116
He is not a knight for you
University academic school olympiad in informatics 2019
161
854
2117
Polyphemus' triples
University academic school olympiad in informatics 2019
264
533
2138
The Good, the Bad and the Ugly
Ural School Programming Contest 2019
1279
104
2139
Experiment with Juice
Ural School Programming Contest 2019
22
4204
2140
BitMazeCraft
Ural School Programming Contest 2019
110
1121
2141
Sasha Vilkin
Ural School Programming Contest 2019
540
245
2142
Magic
Ural School Programming Contest 2019
1118
119
2143
Victoria!
Ural School Programming Contest 2019
198
647
2144
Cleaning the Room
Ural School Programming Contest 2019
584
226
2145
Olympiad for Everyone
Ural School Programming Contest 2019
360
364
2146
Quiz Show
Ural School Programming Contest 2019
200
641
2147
City Building
Ural School Programming Contest 2019
66
1770
2148
Insane Shot
Ural School Programming Contest 2019
258
502
2149
Pigeonhole Principle
Ural School Programming Contest 2019
943
141
2150
4B and Zoo
Ural School Programming Contest 2020
91
1069
2151
Mahjong
Ural School Programming Contest 2020
112
885
2152
Tax Fees
Ural School Programming Contest 2020
91
1069
2153
Perfect Squad
Ural School Programming Contest 2020
105
939
2154
Flight on a Cannonball
Ural School Programming Contest 2020
37
2298
2155
Quadrocopter
Ural School Programming Contest 2020
99
991
2156
Interesting Conversations
Ural School Programming Contest 2020
163
624
2157
Skydiving
Ural School Programming Contest 2020
76
1256
2158
Two progressions
Ural School Programming Contest 2021
25
1655
2159
Essay
Ural School Programming Contest 2021
33
1350
2160
Meta-statement
Ural School Programming Contest 2021
41
1139
2161
Mount & Blade
Ural School Programming Contest 2021
69
735
2162
Graphmania
Ural School Programming Contest 2021
37
1234
2163
Interview
Ural School Programming Contest 2021
31
1413
2164
Bookmaker
Ural School Programming Contest 2021
25
1659
2165
Cake Cutter
Ural School Programming Contest 2021
21
1871
2166
Two Roads
Ural School Programming Contest 2022
18
2071
2167
Cipher Message 5
Ural School Programming Contest 2022
110
484
2168
Runes in the Field
Ural School Programming Contest 2022
10
2899
2169
City Building 2
Ural School Programming Contest 2022
18
2071
2170
Experiment with Juice 2
Ural School Programming Contest 2022
25
1657
2171
Two Progressions 2
Ural School Programming Contest 2022
31
1414
2172
Meta-statement 2
Ural School Programming Contest 2022
71
716
2173
Meta-statement 3
Ural School Programming Contest 2022
64
784
2174
Dualism of Numbers
Ural School Programming Contest 2023
9
1557
2175
Staircase
Ural School Programming Contest 2023
7
1739
2176
Wonderful Numbers
Ural School Programming Contest 2023
6
1851
2177
Vadim and Sudoku: XV-Pairs
Ural School Programming Contest 2023
4
2113
2178
Vadim and Sudoku: Renban
Ural School Programming Contest 2023
4
2111
2179
Need More Roads
Ural School Programming Contest 2023
4
2110
2180
Need More Tasks
Ural School Programming Contest 2023
5
1971
2181
Student, or There and Back Again
Ural School Programming Contest 2023
3
2267
2182
Broken Rum
Ural School Programming Contest 2024
15
1183
2183
Good Mood
Ural School Programming Contest 2024
13
1286
2184
Flint's Favorite Number
Ural School Programming Contest 2024
5
1971
2185
Journey to the Treasure
Ural School Programming Contest 2024
4
2104
2186
Hands Up!
Ural School Programming Contest 2024
3
2266
2187
Need More Gold
Ural School Programming Contest 2024
4
2111
2188
They are charging the cannon... WHY?!
Ural School Programming Contest 2024
3
2275
2189
I Don't Like These Sailors!
Ural School Programming Contest 2024
7
1740
Solved problems:
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