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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
15505
99
1021
Sacrament of the Sum
Autumn School Contest 2000
10486
146
1022
Genealogical Tree
Autumn School Contest 2000
10904
140
1023
Buttons
Autumn School Contest 2000
7151
214
1024
Permutations
Autumn School Contest 2000
4832
317
1025
Democracy in Danger
Autumn School Contest 2000
23000
67
1026
Questions and Answers
Autumn School Contest 2000
9839
156
1027
D++ Again
Autumn School Contest 2000
2432
628
1082
Gaby Ivanushka
Spring School Contest 2001
10835
124
1083
Factorials!!!
Spring School Contest 2001
19976
67
1084
Goat in the Garden
Spring School Contest 2001
9031
149
1085
Meeting
Spring School Contest 2001
2161
621
1086
Cryptography
Spring School Contest 2001
12759
106
1087
The Time to Take Stones
Spring School Contest 2001
4915
274
1088
Ilya Murometz
Spring School Contest 2001
1811
740
1089
Verification with the Dictionary
Spring School Contest 2001
1605
834
1116
Piecewise Constant Function
Autumn School Contest 2001
1493
329
1117
Hierarchy
Autumn School Contest 2001
1775
277
1118
Nontrivial Numbers
Autumn School Contest 2001
4789
103
1119
Metro
Autumn School Contest 2001
7003
71
1120
Sum of Sequential Numbers
Autumn School Contest 2001
5704
87
1121
Branches
Autumn School Contest 2001
1410
349
1122
Game
Autumn School Contest 2001
1988
248
1123
Salary
Autumn School Contest 2001
4084
121
1190
Bar of Chocolate
Spring School Contest 2002
1601
309
1191
Catch the thief!
Spring School Contest 2002
2009
246
1192
Ball in a Dream
Spring School Contest 2002
4583
108
1193
Queue at the Exam
Spring School Contest 2002
2751
180
1194
Handshakes
Spring School Contest 2002
6044
82
1195
Ouths and Crosses
Spring School Contest 2002
1912
259
1196
History Exam
Spring School Contest 2002
9355
53
1197
Lonesome Knight
Spring School Contest 2002
17921
28
1209
1, 10, 100, 1000...
Autumn School Contest 2002
14600
34
1210
Kind Spirits
Autumn School Contest 2002
3069
163
1211
Collective Guarantee
Autumn School Contest 2002
1607
310
1212
Battleship
Autumn School Contest 2002
1017
488
1213
Cockroaches!
Autumn School Contest 2002
2953
169
1214
Strange Procedure
Autumn School Contest 2002
4941
101
1215
Exactness of Projectile Hit
Autumn School Contest 2002
1665
299
1257
Hyphenation
Autumn School Contest 2003
279
1757
1258
Pool
Autumn School Contest 2003
1206
417
1259
How to Become Star?
Autumn School Contest 2003
1279
394
1260
Nudnik Photographer
Autumn School Contest 2003
4596
110
1261
Tips
Autumn School Contest 2003
1538
328
1262
Pseudo-Roman Number
Autumn School Contest 2003
1297
388
1263
Elections
Autumn School Contest 2003
11926
43
1264
Workdays
Autumn School Contest 2003
24099
21
1290
Sabotage
Spring School Contest 2004
6397
80
1291
Gear-wheels
Spring School Contest 2004
1319
384
1292
Mars Space Stations
Spring School Contest 2004
1339
378
1293
Eniya
Spring School Contest 2004
35091
15
1294
Mars Satellites
Spring School Contest 2004
1615
314
1295
Crazy Notions
Spring School Contest 2004
3380
150
1296
Hyperjump
Spring School Contest 2004
7917
64
1297
Palindrome
Spring School Contest 2004
6241
82
1298
Knight
Spring School Contest 2004
2183
233
1299
Psylonians
Spring School Contest 2004
323
1532
1327
Fuses
Autumn School Contest 2004
11011
47
1328
Fireball
Autumn School Contest 2004
356
1403
1329
Galactic History
Autumn School Contest 2004
1101
462
1330
Intervals
Autumn School Contest 2004
5366
95
1331
Vladislava
Autumn School Contest 2004
504
999
1332
Genie Bomber
Autumn School Contest 2004
813
624
1333
Genie Bomber 2
Autumn School Contest 2004
2366
216
1334
Checkers
Autumn School Contest 2004
942
539
1335
White Thesis
Autumn School Contest 2004
2836
180
1336
Problem of Ben Betsalel
Autumn School Contest 2004
4215
122
1337
Bureaucracy
Autumn School Contest 2004
319
1560
1347
Blog
Spring School Contest 2005
365
1374
1348
Goat in the Garden 2
Spring School Contest 2005
2825
182
1349
Farm
Spring School Contest 2005
10181
51
1350
Canteen
Spring School Contest 2005
1297
394
1351
Good Gnusmas – Dead Gnusmas
Spring School Contest 2005
974
524
1352
Mersenne Primes
Spring School Contest 2005
3942
130
1353
Milliard Vasya's Function
Spring School Contest 2005
4980
103
1354
Palindrome. Again Palindrome
Spring School Contest 2005
3726
138
1355
Bald Spot Revisited
Spring School Contest 2005
2428
211
1356
Something Easier
Spring School Contest 2005
1728
297
1357
Teakettle 1.0 for Dummies
Spring School Contest 2005
423
1190
1358
Cables
Spring School Contest 2005
941
542
1359
Construction
Spring School Contest 2005
436
1156
1400
Cellular Characters
Autumn School Contest 2005
935
547
1401
Gamers
Autumn School Contest 2005
2934
176
1402
Cocktails
Autumn School Contest 2005
4008
129
1403
Courier
Autumn School Contest 2005
1465
351
1404
Easy to Hack!
Autumn School Contest 2005
6444
80
1405
Goat in the Garden 5
Autumn School Contest 2005
713
715
1406
Next Number
Autumn School Contest 2005
1491
345
1407
One-two, One-two
Autumn School Contest 2005
1333
385
1408
Polynomial Multiplication
Autumn School Contest 2005
420
1203
1409
Two Gangsters
Autumn School Contest 2005
33652
15
1489
Points on a Parallelepiped
Autumn School Contest 2006
1233
386
1490
Fire Circle
Autumn School Contest 2006
2442
196
1491
Unreal Story
Autumn School Contest 2006
2301
208
1492
Vasya's Dad 2
Autumn School Contest 2006
231
1993
1493
One Step from Happiness
Autumn School Contest 2006
10196
47
1494
Monobilliards
Autumn School Contest 2006
4981
96
1495
One-two, One-two 2
Autumn School Contest 2006
1404
340
1496
Spammer
Autumn School Contest 2006
9840
49
1497
Cutting a Square
Autumn School Contest 2006
1595
299
1498
Stroke at Full Speed
Autumn School Contest 2006
532
886
1499
Kerchiefs
Autumn School Contest 2006
316
1473
1572
Yekaterinozavodsk Great Well
Autumn School Contest 2007
3061
145
1573
Alchemy
Autumn School Contest 2007
4171
107
1574
Mathematicians and brackets
Autumn School Contest 2007
1248
354
1575
Yekaterinburg Subway 2
Autumn School Contest 2007
509
859
1576
Telephone Tariffs
Autumn School Contest 2007
3044
146
1577
E-mail
Autumn School Contest 2007
931
474
1578
Mammoth Hunt
Autumn School Contest 2007
498
878
1579
Coat Transportation
Autumn School Contest 2007
893
494
1580
Dean's Debts
Autumn School Contest 2007
490
892
1581
Teamwork
Autumn School Contest 2007
11087
40
1639
Chocolate 2
Autumn School Contest 2008
12871
32
1640
Circle of Winter
Autumn School Contest 2008
2367
173
1641
Duties
Autumn School Contest 2008
816
499
1642
1D Maze
Autumn School Contest 2008
4317
95
1643
Attack of the Dark Fortress
Autumn School Contest 2008
965
423
1644
A Whole Lot of Walnuts
Autumn School Contest 2008
4164
99
1645
Ski Race
Autumn School Contest 2008
2081
197
1646
Godzilla Strikes Back!
Autumn School Contest 2008
455
887
1647
Divide an Island!
Autumn School Contest 2008
486
831
1648
Yachts
Autumn School Contest 2008
1073
381
1722
Observation Deck
Ural Regional School Programming Contest 2009
277
1332
1723
Sandro's Book
Ural Regional School Programming Contest 2009
6214
61
1724
Origin of Man Clarified
Ural Regional School Programming Contest 2009
575
653
1725
Sold Out!
Ural Regional School Programming Contest 2009
2757
138
1726
Visits
Ural Regional School Programming Contest 2009
2948
129
1727
Znaika's Magic Numbers
Ural Regional School Programming Contest 2009
1926
197
1728
Curse on Team.GOV
Ural Regional School Programming Contest 2009
721
523
1729
Dead Man's Chest
Ural Regional School Programming Contest 2009
602
625
1730
ManBearPig
Ural Regional School Programming Contest 2009
331
1121
1731
Dill
Ural Regional School Programming Contest 2009
3716
103
1785
Lost in Localization
Ural Regional School Programming Contest 2010
21996
16
1786
Sandro's Biography
Ural Regional School Programming Contest 2010
3304
107
1787
Turn for MEGA
Ural Regional School Programming Contest 2010
14314
25
1788
On the Benefits of Umbrellas
Ural Regional School Programming Contest 2010
2243
157
1789
Searching for the Dodecahedron
Ural Regional School Programming Contest 2010
1645
213
1790
Searching for the Truth
Ural Regional School Programming Contest 2010
251
1353
1791
Uncle Styopa and Buses
Ural Regional School Programming Contest 2010
233
1453
1792
Hamming Code
Ural Regional School Programming Contest 2010
4330
81
1793
Tray 2
Ural Regional School Programming Contest 2010
896
390
1794
Masterpieces of World Architecture
Ural Regional School Programming Contest 2010
1798
195
1795
Husband in a Shop
Ural Regional School Programming Contest 2010
1424
246
1796
Amusement Park
Ural Regional School Programming Contest 2010
3291
107
1873
GOV Chronicles
Ural Regional School Programming Contest 2011
903
355
1874
Football Goal
Ural Regional School Programming Contest 2011
1682
192
1875
Angry Birds
Ural Regional School Programming Contest 2011
329
957
1876
Centipede's Morning
Ural Regional School Programming Contest 2011
6077
53
1877
Bicycle Codes
Ural Regional School Programming Contest 2011
17188
19
1878
Rubinchik's Cube
Ural Regional School Programming Contest 2011
1542
209
1879
GOV-internship 2
Ural Regional School Programming Contest 2011
216
1436
1880
Psych Up's Eigenvalues
Ural Regional School Programming Contest 2011
10821
30
1881
Long problem statement
Ural Regional School Programming Contest 2011
5421
60
1882
Old Nokia
Ural Regional School Programming Contest 2011
108
2750
1883
Ent's Birthday
Ural Regional School Programming Contest 2011
263
1189
1884
Way to the University
Ural Regional School Programming Contest 2011
488
652
1921
Chaos and Order
Ural Regional School Programming Contest 2012
235
1213
1922
Superhero Team
Ural Regional School Programming Contest 2012
954
308
1923
Scary Politics
Ural Regional School Programming Contest 2012
547
534
1924
Four Imps
Ural Regional School Programming Contest 2012
7914
38
1925
British Scientists Save the World
Ural Regional School Programming Contest 2012
4426
67
1926
The Tournament of Intelligences
Ural Regional School Programming Contest 2012
284
1011
1927
Herbs and Magic
Ural Regional School Programming Contest 2012
271
1058
1928
Another Ecology Problem
Ural Regional School Programming Contest 2012
383
756
1929
Teddybears are not for Everyone
Ural Regional School Programming Contest 2012
783
375
1930
Ivan's Car
Ural Regional School Programming Contest 2012
1784
166
2000
Grand Theft Array V
Ural Regional School Programming Contest 2013
1778
151
2001
Mathematicians and Berries
Ural Regional School Programming Contest 2013
12686
21
2002
Test Task
Ural Regional School Programming Contest 2013
3874
70
2003
Simple Magic
Ural Regional School Programming Contest 2013
761
351
2004
Scientists from Spilkovo
Ural Regional School Programming Contest 2013
351
749
2005
Taxi for Programmers
Ural Regional School Programming Contest 2013
3007
90
2006
Kirill the Gardener
Ural Regional School Programming Contest 2013
59
3919
2007
Mutants versus Machines
Ural Regional School Programming Contest 2013
133
1891
2008
Swifty
Ural Regional School Programming Contest 2013
245
1061
2009
Canteen Line
Ural Regional School Programming Contest 2013
319
822
2010
Sasha the Young Grandmaster
Ural Regional School Programming Contest 2013
2106
128
2011
Long Statement
Ural Regional School Programming Contest 2013
2738
98
2024
Adventure Time
Ural Regional School Programming Contest 2014
749
325
2025
Line Fighting
Ural Regional School Programming Contest 2014
4106
60
2026
Dean and Schedule
Ural Regional School Programming Contest 2014
419
575
2027
URCAPL, Episode 1
Ural Regional School Programming Contest 2014
465
519
2028
URCAPL, Episode 2
Ural Regional School Programming Contest 2014
286
833
2029
Towers of Hanoi Strike Back
Ural Regional School Programming Contest 2014
402
598
2030
Awesome Backup System
Ural Regional School Programming Contest 2014
487
496
2031
Overturned Numbers
Ural Regional School Programming Contest 2014
2969
83
2032
Conspiracy Theory and Rebranding
Ural Regional School Programming Contest 2014
315
758
2033
Devices
Ural Regional School Programming Contest 2014
2394
103
2034
Caravans
Ural Regional School Programming Contest 2014
839
290
2035
Another Dress Rehearsal
Ural Regional School Programming Contest 2014
3342
74
2062
Ambitious Experiment
Ural Regional School Programming Contest 2015
793
277
2063
Black and White
Ural Regional School Programming Contest 2015
528
414
2064
Caterpillars
Ural Regional School Programming Contest 2015
228
936
2065
Different Sums
Ural Regional School Programming Contest 2015
735
299
2066
Simple Expression
Ural Regional School Programming Contest 2015
8150
27
2067
Friends and Berries
Ural Regional School Programming Contest 2015
709
310
2068
Game of Nuts
Ural Regional School Programming Contest 2015
2175
102
2069
Hard Rock
Ural Regional School Programming Contest 2015
1046
211
2070
Interesting Numbers
Ural Regional School Programming Contest 2015
988
223
2071
Juice Cocktails
Ural Regional School Programming Contest 2015
349
621
2072
Kirill the Gardener 3
Ural Regional School Programming Contest 2015
1106
200
2073
Log Files
Ural Regional School Programming Contest 2015
980
225
2111
Plato
University academic school olympiad in informatics 2019
2098
68
2112
Battle log
University academic school olympiad in informatics 2019
178
764
2113
Survive the flood
University academic school olympiad in informatics 2019
347
402
2114
My craft
University academic school olympiad in informatics 2019
140
957
2115
The Knowledge Day
University academic school olympiad in informatics 2019
674
210
2116
He is not a knight for you
University academic school olympiad in informatics 2019
158
855
2117
Polyphemus' triples
University academic school olympiad in informatics 2019
263
526
2138
The Good, the Bad and the Ugly
Ural School Programming Contest 2019
1262
104
2139
Experiment with Juice
Ural School Programming Contest 2019
22
4127
2140
BitMazeCraft
Ural School Programming Contest 2019
109
1110
2141
Sasha Vilkin
Ural School Programming Contest 2019
535
242
2142
Magic
Ural School Programming Contest 2019
1105
118
2143
Victoria!
Ural School Programming Contest 2019
197
638
2144
Cleaning the Room
Ural School Programming Contest 2019
578
225
2145
Olympiad for Everyone
Ural School Programming Contest 2019
357
360
2146
Quiz Show
Ural School Programming Contest 2019
197
638
2147
City Building
Ural School Programming Contest 2019
62
1834
2148
Insane Shot
Ural School Programming Contest 2019
252
504
2149
Pigeonhole Principle
Ural School Programming Contest 2019
931
140
2150
4B and Zoo
Ural School Programming Contest 2020
89
1065
2151
Mahjong
Ural School Programming Contest 2020
111
871
2152
Tax Fees
Ural School Programming Contest 2020
90
1054
2153
Perfect Squad
Ural School Programming Contest 2020
104
925
2154
Flight on a Cannonball
Ural School Programming Contest 2020
36
2292
2155
Quadrocopter
Ural School Programming Contest 2020
99
967
2156
Interesting Conversations
Ural School Programming Contest 2020
162
613
2157
Skydiving
Ural School Programming Contest 2020
75
1241
2158
Two progressions
Ural School Programming Contest 2021
25
1578
2159
Essay
Ural School Programming Contest 2021
32
1319
2160
Meta-statement
Ural School Programming Contest 2021
40
1108
2161
Mount & Blade
Ural School Programming Contest 2021
65
738
2162
Graphmania
Ural School Programming Contest 2021
37
1176
2163
Interview
Ural School Programming Contest 2021
29
1417
2164
Bookmaker
Ural School Programming Contest 2021
23
1678
2165
Cake Cutter
Ural School Programming Contest 2021
21
1785
2166
Two Roads
Ural School Programming Contest 2022
18
1975
2167
Cipher Message 5
Ural School Programming Contest 2022
110
461
2168
Runes in the Field
Ural School Programming Contest 2022
10
2765
2169
City Building 2
Ural School Programming Contest 2022
18
1975
2170
Experiment with Juice 2
Ural School Programming Contest 2022
25
1580
2171
Two Progressions 2
Ural School Programming Contest 2022
31
1349
2172
Meta-statement 2
Ural School Programming Contest 2022
70
692
2173
Meta-statement 3
Ural School Programming Contest 2022
63
758
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