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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
15588
99
1021
Sacrament of the Sum
Autumn School Contest 2000
10517
147
1022
Genealogical Tree
Autumn School Contest 2000
10960
141
1023
Buttons
Autumn School Contest 2000
7186
215
1024
Permutations
Autumn School Contest 2000
4852
319
1025
Democracy in Danger
Autumn School Contest 2000
23172
67
1026
Questions and Answers
Autumn School Contest 2000
9866
157
1027
D++ Again
Autumn School Contest 2000
2443
631
1082
Gaby Ivanushka
Spring School Contest 2001
10872
125
1083
Factorials!!!
Spring School Contest 2001
20110
68
1084
Goat in the Garden
Spring School Contest 2001
9072
150
1085
Meeting
Spring School Contest 2001
2174
623
1086
Cryptography
Spring School Contest 2001
12833
106
1087
The Time to Take Stones
Spring School Contest 2001
4943
275
1088
Ilya Murometz
Spring School Contest 2001
1816
745
1089
Verification with the Dictionary
Spring School Contest 2001
1615
837
1116
Piecewise Constant Function
Autumn School Contest 2001
1503
330
1117
Hierarchy
Autumn School Contest 2001
1793
277
1118
Nontrivial Numbers
Autumn School Contest 2001
4840
103
1119
Metro
Autumn School Contest 2001
7157
70
1120
Sum of Sequential Numbers
Autumn School Contest 2001
5731
87
1121
Branches
Autumn School Contest 2001
1417
350
1122
Game
Autumn School Contest 2001
1999
249
1123
Salary
Autumn School Contest 2001
4105
121
1190
Bar of Chocolate
Spring School Contest 2002
1610
310
1191
Catch the thief!
Spring School Contest 2002
2021
247
1192
Ball in a Dream
Spring School Contest 2002
4603
109
1193
Queue at the Exam
Spring School Contest 2002
2760
181
1194
Handshakes
Spring School Contest 2002
6065
83
1195
Ouths and Crosses
Spring School Contest 2002
1931
259
1196
History Exam
Spring School Contest 2002
9441
53
1197
Lonesome Knight
Spring School Contest 2002
18058
28
1209
1, 10, 100, 1000...
Autumn School Contest 2002
14751
34
1210
Kind Spirits
Autumn School Contest 2002
3102
163
1211
Collective Guarantee
Autumn School Contest 2002
1619
311
1212
Battleship
Autumn School Contest 2002
1021
491
1213
Cockroaches!
Autumn School Contest 2002
2964
170
1214
Strange Procedure
Autumn School Contest 2002
4963
102
1215
Exactness of Projectile Hit
Autumn School Contest 2002
1675
301
1257
Hyphenation
Autumn School Contest 2003
282
1755
1258
Pool
Autumn School Contest 2003
1219
417
1259
How to Become Star?
Autumn School Contest 2003
1290
394
1260
Nudnik Photographer
Autumn School Contest 2003
4619
111
1261
Tips
Autumn School Contest 2003
1548
329
1262
Pseudo-Roman Number
Autumn School Contest 2003
1304
390
1263
Elections
Autumn School Contest 2003
12004
43
1264
Workdays
Autumn School Contest 2003
24327
21
1290
Sabotage
Spring School Contest 2004
6430
80
1291
Gear-wheels
Spring School Contest 2004
1329
385
1292
Mars Space Stations
Spring School Contest 2004
1345
380
1293
Eniya
Spring School Contest 2004
35409
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
8152
63
1297
Palindrome
Spring School Contest 2004
6269
82
1298
Knight
Spring School Contest 2004
2200
233
1299
Psylonians
Spring School Contest 2004
323
1546
1327
Fuses
Autumn School Contest 2004
11065
47
1328
Fireball
Autumn School Contest 2004
357
1412
1329
Galactic History
Autumn School Contest 2004
1116
460
1330
Intervals
Autumn School Contest 2004
5389
96
1331
Vladislava
Autumn School Contest 2004
507
1002
1332
Genie Bomber
Autumn School Contest 2004
824
621
1333
Genie Bomber 2
Autumn School Contest 2004
2378
217
1334
Checkers
Autumn School Contest 2004
949
540
1335
White Thesis
Autumn School Contest 2004
2843
182
1336
Problem of Ben Betsalel
Autumn School Contest 2004
4238
122
1337
Bureaucracy
Autumn School Contest 2004
323
1556
1347
Blog
Spring School Contest 2005
368
1376
1348
Goat in the Garden 2
Spring School Contest 2005
2903
179
1349
Farm
Spring School Contest 2005
10266
51
1350
Canteen
Spring School Contest 2005
1331
388
1351
Good Gnusmas – Dead Gnusmas
Spring School Contest 2005
984
523
1352
Mersenne Primes
Spring School Contest 2005
3961
131
1353
Milliard Vasya's Function
Spring School Contest 2005
5033
103
1354
Palindrome. Again Palindrome
Spring School Contest 2005
3757
138
1355
Bald Spot Revisited
Spring School Contest 2005
2454
211
1356
Something Easier
Spring School Contest 2005
1744
297
1357
Teakettle 1.0 for Dummies
Spring School Contest 2005
427
1190
1358
Cables
Spring School Contest 2005
949
542
1359
Construction
Spring School Contest 2005
437
1163
1400
Cellular Characters
Autumn School Contest 2005
939
550
1401
Gamers
Autumn School Contest 2005
3107
167
1402
Cocktails
Autumn School Contest 2005
4028
129
1403
Courier
Autumn School Contest 2005
1480
350
1404
Easy to Hack!
Autumn School Contest 2005
6480
80
1405
Goat in the Garden 5
Autumn School Contest 2005
719
716
1406
Next Number
Autumn School Contest 2005
1501
345
1407
One-two, One-two
Autumn School Contest 2005
1342
386
1408
Polynomial Multiplication
Autumn School Contest 2005
423
1205
1409
Two Gangsters
Autumn School Contest 2005
33964
15
1489
Points on a Parallelepiped
Autumn School Contest 2006
1245
387
1490
Fire Circle
Autumn School Contest 2006
2458
197
1491
Unreal Story
Autumn School Contest 2006
2324
208
1492
Vasya's Dad 2
Autumn School Contest 2006
231
2014
1493
One Step from Happiness
Autumn School Contest 2006
10263
47
1494
Monobilliards
Autumn School Contest 2006
5218
93
1495
One-two, One-two 2
Autumn School Contest 2006
1420
339
1496
Spammer
Autumn School Contest 2006
9918
49
1497
Cutting a Square
Autumn School Contest 2006
1605
301
1498
Stroke at Full Speed
Autumn School Contest 2006
537
887
1499
Kerchiefs
Autumn School Contest 2006
317
1484
1572
Yekaterinozavodsk Great Well
Autumn School Contest 2007
3079
146
1573
Alchemy
Autumn School Contest 2007
4204
107
1574
Mathematicians and brackets
Autumn School Contest 2007
1264
354
1575
Yekaterinburg Subway 2
Autumn School Contest 2007
514
861
1576
Telephone Tariffs
Autumn School Contest 2007
3062
147
1577
E-mail
Autumn School Contest 2007
942
474
1578
Mammoth Hunt
Autumn School Contest 2007
502
881
1579
Coat Transportation
Autumn School Contest 2007
897
498
1580
Dean's Debts
Autumn School Contest 2007
494
895
1581
Teamwork
Autumn School Contest 2007
11159
40
1639
Chocolate 2
Autumn School Contest 2008
12972
32
1640
Circle of Winter
Autumn School Contest 2008
2378
175
1641
Duties
Autumn School Contest 2008
823
502
1642
1D Maze
Autumn School Contest 2008
4342
96
1643
Attack of the Dark Fortress
Autumn School Contest 2008
975
424
1644
A Whole Lot of Walnuts
Autumn School Contest 2008
4193
99
1645
Ski Race
Autumn School Contest 2008
2091
199
1646
Godzilla Strikes Back!
Autumn School Contest 2008
457
895
1647
Divide an Island!
Autumn School Contest 2008
490
836
1648
Yachts
Autumn School Contest 2008
1086
381
1722
Observation Deck
Ural Regional School Programming Contest 2009
279
1343
1723
Sandro's Book
Ural Regional School Programming Contest 2009
6281
62
1724
Origin of Man Clarified
Ural Regional School Programming Contest 2009
579
659
1725
Sold Out!
Ural Regional School Programming Contest 2009
2778
139
1726
Visits
Ural Regional School Programming Contest 2009
3110
124
1727
Znaika's Magic Numbers
Ural Regional School Programming Contest 2009
1946
198
1728
Curse on Team.GOV
Ural Regional School Programming Contest 2009
731
524
1729
Dead Man's Chest
Ural Regional School Programming Contest 2009
609
627
1730
ManBearPig
Ural Regional School Programming Contest 2009
331
1138
1731
Dill
Ural Regional School Programming Contest 2009
3739
104
1785
Lost in Localization
Ural Regional School Programming Contest 2010
22218
16
1786
Sandro's Biography
Ural Regional School Programming Contest 2010
3326
108
1787
Turn for MEGA
Ural Regional School Programming Contest 2010
14487
25
1788
On the Benefits of Umbrellas
Ural Regional School Programming Contest 2010
2254
159
1789
Searching for the Dodecahedron
Ural Regional School Programming Contest 2010
1655
216
1790
Searching for the Truth
Ural Regional School Programming Contest 2010
253
1366
1791
Uncle Styopa and Buses
Ural Regional School Programming Contest 2010
236
1461
1792
Hamming Code
Ural Regional School Programming Contest 2010
4350
82
1793
Tray 2
Ural Regional School Programming Contest 2010
907
392
1794
Masterpieces of World Architecture
Ural Regional School Programming Contest 2010
1816
197
1795
Husband in a Shop
Ural Regional School Programming Contest 2010
1442
247
1796
Amusement Park
Ural Regional School Programming Contest 2010
3311
108
1873
GOV Chronicles
Ural Regional School Programming Contest 2011
912
359
1874
Football Goal
Ural Regional School Programming Contest 2011
1700
194
1875
Angry Birds
Ural Regional School Programming Contest 2011
332
968
1876
Centipede's Morning
Ural Regional School Programming Contest 2011
6123
54
1877
Bicycle Codes
Ural Regional School Programming Contest 2011
17389
19
1878
Rubinchik's Cube
Ural Regional School Programming Contest 2011
1555
212
1879
GOV-internship 2
Ural Regional School Programming Contest 2011
218
1452
1880
Psych Up's Eigenvalues
Ural Regional School Programming Contest 2011
10966
30
1881
Long problem statement
Ural Regional School Programming Contest 2011
5453
61
1882
Old Nokia
Ural Regional School Programming Contest 2011
110
2759
1883
Ent's Birthday
Ural Regional School Programming Contest 2011
264
1208
1884
Way to the University
Ural Regional School Programming Contest 2011
493
658
1921
Chaos and Order
Ural Regional School Programming Contest 2012
237
1231
1922
Superhero Team
Ural Regional School Programming Contest 2012
966
312
1923
Scary Politics
Ural Regional School Programming Contest 2012
552
541
1924
Four Imps
Ural Regional School Programming Contest 2012
7983
38
1925
British Scientists Save the World
Ural Regional School Programming Contest 2012
4455
68
1926
The Tournament of Intelligences
Ural Regional School Programming Contest 2012
290
1013
1927
Herbs and Magic
Ural Regional School Programming Contest 2012
271
1082
1928
Another Ecology Problem
Ural Regional School Programming Contest 2012
387
766
1929
Teddybears are not for Everyone
Ural Regional School Programming Contest 2012
807
372
1930
Ivan's Car
Ural Regional School Programming Contest 2012
1823
166
2000
Grand Theft Array V
Ural Regional School Programming Contest 2013
1793
154
2001
Mathematicians and Berries
Ural Regional School Programming Contest 2013
12876
22
2002
Test Task
Ural Regional School Programming Contest 2013
3980
70
2003
Simple Magic
Ural Regional School Programming Contest 2013
773
354
2004
Scientists from Spilkovo
Ural Regional School Programming Contest 2013
360
750
2005
Taxi for Programmers
Ural Regional School Programming Contest 2013
3061
90
2006
Kirill the Gardener
Ural Regional School Programming Contest 2013
59
4022
2007
Mutants versus Machines
Ural Regional School Programming Contest 2013
133
1941
2008
Swifty
Ural Regional School Programming Contest 2013
248
1076
2009
Canteen Line
Ural Regional School Programming Contest 2013
322
836
2010
Sasha the Young Grandmaster
Ural Regional School Programming Contest 2013
2129
130
2011
Long Statement
Ural Regional School Programming Contest 2013
2759
100
2024
Adventure Time
Ural Regional School Programming Contest 2014
757
331
2025
Line Fighting
Ural Regional School Programming Contest 2014
4231
60
2026
Dean and Schedule
Ural Regional School Programming Contest 2014
425
583
2027
URCAPL, Episode 1
Ural Regional School Programming Contest 2014
470
529
2028
URCAPL, Episode 2
Ural Regional School Programming Contest 2014
288
852
2029
Towers of Hanoi Strike Back
Ural Regional School Programming Contest 2014
414
599
2030
Awesome Backup System
Ural Regional School Programming Contest 2014
495
503
2031
Overturned Numbers
Ural Regional School Programming Contest 2014
2994
84
2032
Conspiracy Theory and Rebranding
Ural Regional School Programming Contest 2014
320
769
2033
Devices
Ural Regional School Programming Contest 2014
2514
101
2034
Caravans
Ural Regional School Programming Contest 2014
880
285
2035
Another Dress Rehearsal
Ural Regional School Programming Contest 2014
3373
75
2062
Ambitious Experiment
Ural Regional School Programming Contest 2015
801
284
2063
Black and White
Ural Regional School Programming Contest 2015
536
422
2064
Caterpillars
Ural Regional School Programming Contest 2015
232
952
2065
Different Sums
Ural Regional School Programming Contest 2015
747
304
2066
Simple Expression
Ural Regional School Programming Contest 2015
8349
28
2067
Friends and Berries
Ural Regional School Programming Contest 2015
718
316
2068
Game of Nuts
Ural Regional School Programming Contest 2015
2202
104
2069
Hard Rock
Ural Regional School Programming Contest 2015
1061
215
2070
Interesting Numbers
Ural Regional School Programming Contest 2015
1001
228
2071
Juice Cocktails
Ural Regional School Programming Contest 2015
352
636
2072
Kirill the Gardener 3
Ural Regional School Programming Contest 2015
1127
203
2073
Log Files
Ural Regional School Programming Contest 2015
989
231
2111
Plato
University academic school olympiad in informatics 2019
2163
70
2112
Battle log
University academic school olympiad in informatics 2019
185
779
2113
Survive the flood
University academic school olympiad in informatics 2019
356
415
2114
My craft
University academic school olympiad in informatics 2019
145
980
2115
The Knowledge Day
University academic school olympiad in informatics 2019
691
217
2116
He is not a knight for you
University academic school olympiad in informatics 2019
169
849
2117
Polyphemus' triples
University academic school olympiad in informatics 2019
274
535
2138
The Good, the Bad and the Ugly
Ural School Programming Contest 2019
1311
106
2139
Experiment with Juice
Ural School Programming Contest 2019
22
4390
2140
BitMazeCraft
Ural School Programming Contest 2019
111
1161
2141
Sasha Vilkin
Ural School Programming Contest 2019
560
246
2142
Magic
Ural School Programming Contest 2019
1146
122
2143
Victoria!
Ural School Programming Contest 2019
203
660
2144
Cleaning the Room
Ural School Programming Contest 2019
630
219
2145
Olympiad for Everyone
Ural School Programming Contest 2019
367
373
2146
Quiz Show
Ural School Programming Contest 2019
205
653
2147
City Building
Ural School Programming Contest 2019
66
1848
2148
Insane Shot
Ural School Programming Contest 2019
282
481
2149
Pigeonhole Principle
Ural School Programming Contest 2019
958
145
2150
4B and Zoo
Ural School Programming Contest 2020
91
1130
2151
Mahjong
Ural School Programming Contest 2020
114
920
2152
Tax Fees
Ural School Programming Contest 2020
93
1108
2153
Perfect Squad
Ural School Programming Contest 2020
112
936
2154
Flight on a Cannonball
Ural School Programming Contest 2020
37
2428
2155
Quadrocopter
Ural School Programming Contest 2020
101
1028
2156
Interesting Conversations
Ural School Programming Contest 2020
169
638
2157
Skydiving
Ural School Programming Contest 2020
79
1282
2158
Two progressions
Ural School Programming Contest 2021
27
1741
2159
Essay
Ural School Programming Contest 2021
35
1434
2160
Meta-statement
Ural School Programming Contest 2021
44
1195
2161
Mount & Blade
Ural School Programming Contest 2021
76
750
2162
Graphmania
Ural School Programming Contest 2021
47
1131
2163
Interview
Ural School Programming Contest 2021
40
1289
2164
Bookmaker
Ural School Programming Contest 2021
27
1744
2165
Cake Cutter
Ural School Programming Contest 2021
24
1897
2166
Two Roads
Ural School Programming Contest 2022
18
2302
2167
Cipher Message 5
Ural School Programming Contest 2022
122
489
2168
Runes in the Field
Ural School Programming Contest 2022
10
3223
2169
City Building 2
Ural School Programming Contest 2022
20
2149
2170
Experiment with Juice 2
Ural School Programming Contest 2022
28
1696
2171
Two Progressions 2
Ural School Programming Contest 2022
35
1432
2172
Meta-statement 2
Ural School Programming Contest 2022
80
717
2173
Meta-statement 3
Ural School Programming Contest 2022
68
827
2174
Dualism of Numbers
Ural School Programming Contest 2023
25
1036
2175
Staircase
Ural School Programming Contest 2023
16
1394
2176
Wonderful Numbers
Ural School Programming Contest 2023
19
1251
2177
Vadim and Sudoku: XV-Pairs
Ural School Programming Contest 2023
6
2266
2178
Vadim and Sudoku: Renban
Ural School Programming Contest 2023
7
2131
2179
Need More Roads
Ural School Programming Contest 2023
5
2414
2180
Need More Tasks
Ural School Programming Contest 2023
10
1812
2181
Student, or There and Back Again
Ural School Programming Contest 2023
9
1903
2182
Broken Rum
Ural School Programming Contest 2024
30
907
2183
Good Mood
Ural School Programming Contest 2024
29
930
2184
Flint's Favorite Number
Ural School Programming Contest 2024
12
1647
2185
Journey to the Treasure
Ural School Programming Contest 2024
4
2581
2186
Hands Up!
Ural School Programming Contest 2024
5
2409
2187
Need More Gold
Ural School Programming Contest 2024
6
2264
2188
They are charging the cannon... WHY?!
Ural School Programming Contest 2024
6
2266
2189
I Don't Like These Sailors!
Ural School Programming Contest 2024
16
1394
Solved problems:
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