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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
15579
99
1021
Sacrament of the Sum
Autumn School Contest 2000
10515
147
1022
Genealogical Tree
Autumn School Contest 2000
10954
141
1023
Buttons
Autumn School Contest 2000
7182
215
1024
Permutations
Autumn School Contest 2000
4848
318
1025
Democracy in Danger
Autumn School Contest 2000
23149
67
1026
Questions and Answers
Autumn School Contest 2000
9866
157
1027
D++ Again
Autumn School Contest 2000
2440
631
1082
Gaby Ivanushka
Spring School Contest 2001
10868
125
1083
Factorials!!!
Spring School Contest 2001
20093
68
1084
Goat in the Garden
Spring School Contest 2001
9068
150
1085
Meeting
Spring School Contest 2001
2172
623
1086
Cryptography
Spring School Contest 2001
12826
106
1087
The Time to Take Stones
Spring School Contest 2001
4942
274
1088
Ilya Murometz
Spring School Contest 2001
1816
744
1089
Verification with the Dictionary
Spring School Contest 2001
1614
837
1116
Piecewise Constant Function
Autumn School Contest 2001
1502
330
1117
Hierarchy
Autumn School Contest 2001
1792
277
1118
Nontrivial Numbers
Autumn School Contest 2001
4836
103
1119
Metro
Autumn School Contest 2001
7153
70
1120
Sum of Sequential Numbers
Autumn School Contest 2001
5729
87
1121
Branches
Autumn School Contest 2001
1417
350
1122
Game
Autumn School Contest 2001
1997
249
1123
Salary
Autumn School Contest 2001
4103
121
1190
Bar of Chocolate
Spring School Contest 2002
1610
310
1191
Catch the thief!
Spring School Contest 2002
2018
247
1192
Ball in a Dream
Spring School Contest 2002
4600
109
1193
Queue at the Exam
Spring School Contest 2002
2760
181
1194
Handshakes
Spring School Contest 2002
6064
83
1195
Ouths and Crosses
Spring School Contest 2002
1930
259
1196
History Exam
Spring School Contest 2002
9435
53
1197
Lonesome Knight
Spring School Contest 2002
18043
28
1209
1, 10, 100, 1000...
Autumn School Contest 2002
14735
34
1210
Kind Spirits
Autumn School Contest 2002
3100
163
1211
Collective Guarantee
Autumn School Contest 2002
1619
310
1212
Battleship
Autumn School Contest 2002
1020
491
1213
Cockroaches!
Autumn School Contest 2002
2964
170
1214
Strange Procedure
Autumn School Contest 2002
4957
102
1215
Exactness of Projectile Hit
Autumn School Contest 2002
1675
300
1257
Hyphenation
Autumn School Contest 2003
282
1752
1258
Pool
Autumn School Contest 2003
1218
417
1259
How to Become Star?
Autumn School Contest 2003
1289
394
1260
Nudnik Photographer
Autumn School Contest 2003
4618
111
1261
Tips
Autumn School Contest 2003
1548
328
1262
Pseudo-Roman Number
Autumn School Contest 2003
1304
389
1263
Elections
Autumn School Contest 2003
11999
43
1264
Workdays
Autumn School Contest 2003
24294
21
1290
Sabotage
Spring School Contest 2004
6427
80
1291
Gear-wheels
Spring School Contest 2004
1328
384
1292
Mars Space Stations
Spring School Contest 2004
1345
379
1293
Eniya
Spring School Contest 2004
35364
15
1294
Mars Satellites
Spring School Contest 2004
1624
315
1295
Crazy Notions
Spring School Contest 2004
3403
151
1296
Hyperjump
Spring School Contest 2004
8146
63
1297
Palindrome
Spring School Contest 2004
6266
82
1298
Knight
Spring School Contest 2004
2198
233
1299
Psylonians
Spring School Contest 2004
323
1544
1327
Fuses
Autumn School Contest 2004
11062
47
1328
Fireball
Autumn School Contest 2004
357
1409
1329
Galactic History
Autumn School Contest 2004
1115
460
1330
Intervals
Autumn School Contest 2004
5386
96
1331
Vladislava
Autumn School Contest 2004
507
1000
1332
Genie Bomber
Autumn School Contest 2004
822
622
1333
Genie Bomber 2
Autumn School Contest 2004
2377
217
1334
Checkers
Autumn School Contest 2004
947
540
1335
White Thesis
Autumn School Contest 2004
2842
181
1336
Problem of Ben Betsalel
Autumn School Contest 2004
4236
122
1337
Bureaucracy
Autumn School Contest 2004
321
1563
1347
Blog
Spring School Contest 2005
368
1374
1348
Goat in the Garden 2
Spring School Contest 2005
2901
178
1349
Farm
Spring School Contest 2005
10260
51
1350
Canteen
Spring School Contest 2005
1330
387
1351
Good Gnusmas – Dead Gnusmas
Spring School Contest 2005
984
522
1352
Mersenne Primes
Spring School Contest 2005
3958
131
1353
Milliard Vasya's Function
Spring School Contest 2005
5030
103
1354
Palindrome. Again Palindrome
Spring School Contest 2005
3756
138
1355
Bald Spot Revisited
Spring School Contest 2005
2453
211
1356
Something Easier
Spring School Contest 2005
1743
296
1357
Teakettle 1.0 for Dummies
Spring School Contest 2005
427
1188
1358
Cables
Spring School Contest 2005
948
542
1359
Construction
Spring School Contest 2005
437
1162
1400
Cellular Characters
Autumn School Contest 2005
938
550
1401
Gamers
Autumn School Contest 2005
3100
168
1402
Cocktails
Autumn School Contest 2005
4026
129
1403
Courier
Autumn School Contest 2005
1480
350
1404
Easy to Hack!
Autumn School Contest 2005
6477
80
1405
Goat in the Garden 5
Autumn School Contest 2005
719
715
1406
Next Number
Autumn School Contest 2005
1501
345
1407
One-two, One-two
Autumn School Contest 2005
1342
385
1408
Polynomial Multiplication
Autumn School Contest 2005
423
1203
1409
Two Gangsters
Autumn School Contest 2005
33917
15
1489
Points on a Parallelepiped
Autumn School Contest 2006
1243
387
1490
Fire Circle
Autumn School Contest 2006
2456
196
1491
Unreal Story
Autumn School Contest 2006
2315
208
1492
Vasya's Dad 2
Autumn School Contest 2006
231
2010
1493
One Step from Happiness
Autumn School Contest 2006
10259
47
1494
Monobilliards
Autumn School Contest 2006
5212
93
1495
One-two, One-two 2
Autumn School Contest 2006
1418
339
1496
Spammer
Autumn School Contest 2006
9909
49
1497
Cutting a Square
Autumn School Contest 2006
1604
300
1498
Stroke at Full Speed
Autumn School Contest 2006
537
886
1499
Kerchiefs
Autumn School Contest 2006
317
1481
1572
Yekaterinozavodsk Great Well
Autumn School Contest 2007
3077
146
1573
Alchemy
Autumn School Contest 2007
4196
107
1574
Mathematicians and brackets
Autumn School Contest 2007
1263
354
1575
Yekaterinburg Subway 2
Autumn School Contest 2007
514
859
1576
Telephone Tariffs
Autumn School Contest 2007
3060
147
1577
E-mail
Autumn School Contest 2007
941
474
1578
Mammoth Hunt
Autumn School Contest 2007
502
880
1579
Coat Transportation
Autumn School Contest 2007
896
497
1580
Dean's Debts
Autumn School Contest 2007
494
893
1581
Teamwork
Autumn School Contest 2007
11151
40
1639
Chocolate 2
Autumn School Contest 2008
12960
32
1640
Circle of Winter
Autumn School Contest 2008
2375
175
1641
Duties
Autumn School Contest 2008
822
501
1642
1D Maze
Autumn School Contest 2008
4339
96
1643
Attack of the Dark Fortress
Autumn School Contest 2008
973
424
1644
A Whole Lot of Walnuts
Autumn School Contest 2008
4189
99
1645
Ski Race
Autumn School Contest 2008
2089
199
1646
Godzilla Strikes Back!
Autumn School Contest 2008
457
893
1647
Divide an Island!
Autumn School Contest 2008
489
836
1648
Yachts
Autumn School Contest 2008
1085
381
1722
Observation Deck
Ural Regional School Programming Contest 2009
279
1340
1723
Sandro's Book
Ural Regional School Programming Contest 2009
6278
62
1724
Origin of Man Clarified
Ural Regional School Programming Contest 2009
579
657
1725
Sold Out!
Ural Regional School Programming Contest 2009
2775
139
1726
Visits
Ural Regional School Programming Contest 2009
3106
124
1727
Znaika's Magic Numbers
Ural Regional School Programming Contest 2009
1945
198
1728
Curse on Team.GOV
Ural Regional School Programming Contest 2009
729
524
1729
Dead Man's Chest
Ural Regional School Programming Contest 2009
607
627
1730
ManBearPig
Ural Regional School Programming Contest 2009
331
1135
1731
Dill
Ural Regional School Programming Contest 2009
3736
103
1785
Lost in Localization
Ural Regional School Programming Contest 2010
22190
16
1786
Sandro's Biography
Ural Regional School Programming Contest 2010
3323
107
1787
Turn for MEGA
Ural Regional School Programming Contest 2010
14468
25
1788
On the Benefits of Umbrellas
Ural Regional School Programming Contest 2010
2251
158
1789
Searching for the Dodecahedron
Ural Regional School Programming Contest 2010
1655
215
1790
Searching for the Truth
Ural Regional School Programming Contest 2010
253
1362
1791
Uncle Styopa and Buses
Ural Regional School Programming Contest 2010
236
1456
1792
Hamming Code
Ural Regional School Programming Contest 2010
4347
82
1793
Tray 2
Ural Regional School Programming Contest 2010
904
392
1794
Masterpieces of World Architecture
Ural Regional School Programming Contest 2010
1814
196
1795
Husband in a Shop
Ural Regional School Programming Contest 2010
1438
247
1796
Amusement Park
Ural Regional School Programming Contest 2010
3309
108
1873
GOV Chronicles
Ural Regional School Programming Contest 2011
912
358
1874
Football Goal
Ural Regional School Programming Contest 2011
1700
193
1875
Angry Birds
Ural Regional School Programming Contest 2011
332
965
1876
Centipede's Morning
Ural Regional School Programming Contest 2011
6118
54
1877
Bicycle Codes
Ural Regional School Programming Contest 2011
17361
19
1878
Rubinchik's Cube
Ural Regional School Programming Contest 2011
1553
211
1879
GOV-internship 2
Ural Regional School Programming Contest 2011
217
1453
1880
Psych Up's Eigenvalues
Ural Regional School Programming Contest 2011
10946
30
1881
Long problem statement
Ural Regional School Programming Contest 2011
5450
60
1882
Old Nokia
Ural Regional School Programming Contest 2011
110
2749
1883
Ent's Birthday
Ural Regional School Programming Contest 2011
264
1204
1884
Way to the University
Ural Regional School Programming Contest 2011
493
656
1921
Chaos and Order
Ural Regional School Programming Contest 2012
236
1231
1922
Superhero Team
Ural Regional School Programming Contest 2012
965
311
1923
Scary Politics
Ural Regional School Programming Contest 2012
551
540
1924
Four Imps
Ural Regional School Programming Contest 2012
7975
38
1925
British Scientists Save the World
Ural Regional School Programming Contest 2012
4450
68
1926
The Tournament of Intelligences
Ural Regional School Programming Contest 2012
290
1009
1927
Herbs and Magic
Ural Regional School Programming Contest 2012
271
1078
1928
Another Ecology Problem
Ural Regional School Programming Contest 2012
387
763
1929
Teddybears are not for Everyone
Ural Regional School Programming Contest 2012
806
371
1930
Ivan's Car
Ural Regional School Programming Contest 2012
1816
166
2000
Grand Theft Array V
Ural Regional School Programming Contest 2013
1791
153
2001
Mathematicians and Berries
Ural Regional School Programming Contest 2013
12851
21
2002
Test Task
Ural Regional School Programming Contest 2013
3978
69
2003
Simple Magic
Ural Regional School Programming Contest 2013
772
353
2004
Scientists from Spilkovo
Ural Regional School Programming Contest 2013
359
749
2005
Taxi for Programmers
Ural Regional School Programming Contest 2013
3059
90
2006
Kirill the Gardener
Ural Regional School Programming Contest 2013
59
4004
2007
Mutants versus Machines
Ural Regional School Programming Contest 2013
133
1932
2008
Swifty
Ural Regional School Programming Contest 2013
248
1071
2009
Canteen Line
Ural Regional School Programming Contest 2013
322
832
2010
Sasha the Young Grandmaster
Ural Regional School Programming Contest 2013
2127
129
2011
Long Statement
Ural Regional School Programming Contest 2013
2757
100
2024
Adventure Time
Ural Regional School Programming Contest 2014
756
330
2025
Line Fighting
Ural Regional School Programming Contest 2014
4228
60
2026
Dean and Schedule
Ural Regional School Programming Contest 2014
423
583
2027
URCAPL, Episode 1
Ural Regional School Programming Contest 2014
469
527
2028
URCAPL, Episode 2
Ural Regional School Programming Contest 2014
288
847
2029
Towers of Hanoi Strike Back
Ural Regional School Programming Contest 2014
412
598
2030
Awesome Backup System
Ural Regional School Programming Contest 2014
494
501
2031
Overturned Numbers
Ural Regional School Programming Contest 2014
2991
84
2032
Conspiracy Theory and Rebranding
Ural Regional School Programming Contest 2014
319
767
2033
Devices
Ural Regional School Programming Contest 2014
2509
100
2034
Caravans
Ural Regional School Programming Contest 2014
874
286
2035
Another Dress Rehearsal
Ural Regional School Programming Contest 2014
3371
75
2062
Ambitious Experiment
Ural Regional School Programming Contest 2015
799
283
2063
Black and White
Ural Regional School Programming Contest 2015
533
422
2064
Caterpillars
Ural Regional School Programming Contest 2015
232
946
2065
Different Sums
Ural Regional School Programming Contest 2015
747
303
2066
Simple Expression
Ural Regional School Programming Contest 2015
8332
27
2067
Friends and Berries
Ural Regional School Programming Contest 2015
717
315
2068
Game of Nuts
Ural Regional School Programming Contest 2015
2198
104
2069
Hard Rock
Ural Regional School Programming Contest 2015
1061
214
2070
Interesting Numbers
Ural Regional School Programming Contest 2015
999
227
2071
Juice Cocktails
Ural Regional School Programming Contest 2015
351
634
2072
Kirill the Gardener 3
Ural Regional School Programming Contest 2015
1127
201
2073
Log Files
Ural Regional School Programming Contest 2015
989
229
2111
Plato
University academic school olympiad in informatics 2019
2155
69
2112
Battle log
University academic school olympiad in informatics 2019
185
771
2113
Survive the flood
University academic school olympiad in informatics 2019
354
413
2114
My craft
University academic school olympiad in informatics 2019
144
977
2115
The Knowledge Day
University academic school olympiad in informatics 2019
691
215
2116
He is not a knight for you
University academic school olympiad in informatics 2019
168
845
2117
Polyphemus' triples
University academic school olympiad in informatics 2019
272
533
2138
The Good, the Bad and the Ugly
Ural School Programming Contest 2019
1304
106
2139
Experiment with Juice
Ural School Programming Contest 2019
22
4343
2140
BitMazeCraft
Ural School Programming Contest 2019
111
1149
2141
Sasha Vilkin
Ural School Programming Contest 2019
554
246
2142
Magic
Ural School Programming Contest 2019
1141
121
2143
Victoria!
Ural School Programming Contest 2019
203
652
2144
Cleaning the Room
Ural School Programming Contest 2019
627
218
2145
Olympiad for Everyone
Ural School Programming Contest 2019
367
369
2146
Quiz Show
Ural School Programming Contest 2019
205
646
2147
City Building
Ural School Programming Contest 2019
66
1829
2148
Insane Shot
Ural School Programming Contest 2019
279
481
2149
Pigeonhole Principle
Ural School Programming Contest 2019
955
144
2150
4B and Zoo
Ural School Programming Contest 2020
91
1115
2151
Mahjong
Ural School Programming Contest 2020
114
908
2152
Tax Fees
Ural School Programming Contest 2020
93
1093
2153
Perfect Squad
Ural School Programming Contest 2020
112
923
2154
Flight on a Cannonball
Ural School Programming Contest 2020
37
2395
2155
Quadrocopter
Ural School Programming Contest 2020
101
1014
2156
Interesting Conversations
Ural School Programming Contest 2020
168
633
2157
Skydiving
Ural School Programming Contest 2020
79
1265
2158
Two progressions
Ural School Programming Contest 2021
26
1744
2159
Essay
Ural School Programming Contest 2021
35
1398
2160
Meta-statement
Ural School Programming Contest 2021
44
1165
2161
Mount & Blade
Ural School Programming Contest 2021
76
731
2162
Graphmania
Ural School Programming Contest 2021
47
1102
2163
Interview
Ural School Programming Contest 2021
40
1256
2164
Bookmaker
Ural School Programming Contest 2021
27
1700
2165
Cake Cutter
Ural School Programming Contest 2021
24
1849
2166
Two Roads
Ural School Programming Contest 2022
18
2244
2167
Cipher Message 5
Ural School Programming Contest 2022
120
484
2168
Runes in the Field
Ural School Programming Contest 2022
10
3141
2169
City Building 2
Ural School Programming Contest 2022
19
2167
2170
Experiment with Juice 2
Ural School Programming Contest 2022
28
1653
2171
Two Progressions 2
Ural School Programming Contest 2022
34
1428
2172
Meta-statement 2
Ural School Programming Contest 2022
80
699
2173
Meta-statement 3
Ural School Programming Contest 2022
68
806
2174
Dualism of Numbers
Ural School Programming Contest 2023
23
1048
2175
Staircase
Ural School Programming Contest 2023
16
1329
2176
Wonderful Numbers
Ural School Programming Contest 2023
18
1236
2177
Vadim and Sudoku: XV-Pairs
Ural School Programming Contest 2023
6
2161
2178
Vadim and Sudoku: Renban
Ural School Programming Contest 2023
6
2159
2179
Need More Roads
Ural School Programming Contest 2023
5
2302
2180
Need More Tasks
Ural School Programming Contest 2023
10
1728
2181
Student, or There and Back Again
Ural School Programming Contest 2023
9
1814
2182
Broken Rum
Ural School Programming Contest 2024
30
864
2183
Good Mood
Ural School Programming Contest 2024
29
887
2184
Flint's Favorite Number
Ural School Programming Contest 2024
12
1571
2185
Journey to the Treasure
Ural School Programming Contest 2024
4
2461
2186
Hands Up!
Ural School Programming Contest 2024
4
2461
2187
Need More Gold
Ural School Programming Contest 2024
5
2303
2188
They are charging the cannon... WHY?!
Ural School Programming Contest 2024
5
2305
2189
I Don't Like These Sailors!
Ural School Programming Contest 2024
16
1330
Solved problems:
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