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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
15677
100
1021
Sacrament of the Sum
Autumn School Contest 2000
10556
148
1022
Genealogical Tree
Autumn School Contest 2000
11017
142
1023
Buttons
Autumn School Contest 2000
7213
216
1024
Permutations
Autumn School Contest 2000
4874
320
1025
Democracy in Danger
Autumn School Contest 2000
23351
67
1026
Questions and Answers
Autumn School Contest 2000
10035
155
1027
D++ Again
Autumn School Contest 2000
2447
635
1082
Gaby Ivanushka
Spring School Contest 2001
10899
126
1083
Factorials!!!
Spring School Contest 2001
20195
68
1084
Goat in the Garden
Spring School Contest 2001
9153
150
1085
Meeting
Spring School Contest 2001
2181
626
1086
Cryptography
Spring School Contest 2001
12915
106
1087
The Time to Take Stones
Spring School Contest 2001
4955
276
1088
Ilya Murometz
Spring School Contest 2001
1825
747
1089
Verification with the Dictionary
Spring School Contest 2001
1623
840
1116
Piecewise Constant Function
Autumn School Contest 2001
1511
331
1117
Hierarchy
Autumn School Contest 2001
1798
279
1118
Nontrivial Numbers
Autumn School Contest 2001
4860
103
1119
Metro
Autumn School Contest 2001
7194
70
1120
Sum of Sequential Numbers
Autumn School Contest 2001
5809
87
1121
Branches
Autumn School Contest 2001
1422
352
1122
Game
Autumn School Contest 2001
2007
250
1123
Salary
Autumn School Contest 2001
4122
122
1190
Bar of Chocolate
Spring School Contest 2002
1474
341
1191
Catch the thief!
Spring School Contest 2002
2026
249
1192
Ball in a Dream
Spring School Contest 2002
4617
109
1193
Queue at the Exam
Spring School Contest 2002
2767
182
1194
Handshakes
Spring School Contest 2002
6079
83
1195
Ouths and Crosses
Spring School Contest 2002
1940
260
1196
History Exam
Spring School Contest 2002
9619
53
1197
Lonesome Knight
Spring School Contest 2002
18232
28
1209
1, 10, 100, 1000...
Autumn School Contest 2002
14889
34
1210
Kind Spirits
Autumn School Contest 2002
2989
170
1211
Collective Guarantee
Autumn School Contest 2002
1627
312
1212
Battleship
Autumn School Contest 2002
1027
492
1213
Cockroaches!
Autumn School Contest 2002
2976
171
1214
Strange Procedure
Autumn School Contest 2002
4982
102
1215
Exactness of Projectile Hit
Autumn School Contest 2002
1689
300
1257
Hyphenation
Autumn School Contest 2003
282
1768
1258
Pool
Autumn School Contest 2003
1227
417
1259
How to Become Star?
Autumn School Contest 2003
1294
396
1260
Nudnik Photographer
Autumn School Contest 2003
4633
111
1261
Tips
Autumn School Contest 2003
1556
330
1262
Pseudo-Roman Number
Autumn School Contest 2003
1310
391
1263
Elections
Autumn School Contest 2003
12122
43
1264
Workdays
Autumn School Contest 2003
24610
21
1290
Sabotage
Spring School Contest 2004
6447
80
1291
Gear-wheels
Spring School Contest 2004
1334
386
1292
Mars Space Stations
Spring School Contest 2004
1351
381
1293
Eniya
Spring School Contest 2004
35794
14
1294
Mars Satellites
Spring School Contest 2004
1630
316
1295
Crazy Notions
Spring School Contest 2004
3420
151
1296
Hyperjump
Spring School Contest 2004
8296
62
1297
Palindrome
Spring School Contest 2004
6308
82
1298
Knight
Spring School Contest 2004
2223
232
1299
Psylonians
Spring School Contest 2004
323
1557
1327
Fuses
Autumn School Contest 2004
11114
47
1328
Fireball
Autumn School Contest 2004
359
1414
1329
Galactic History
Autumn School Contest 2004
1126
459
1330
Intervals
Autumn School Contest 2004
5447
96
1331
Vladislava
Autumn School Contest 2004
515
994
1332
Genie Bomber
Autumn School Contest 2004
831
620
1333
Genie Bomber 2
Autumn School Contest 2004
2388
218
1334
Checkers
Autumn School Contest 2004
957
540
1335
White Thesis
Autumn School Contest 2004
2852
182
1336
Problem of Ben Betsalel
Autumn School Contest 2004
4248
123
1337
Bureaucracy
Autumn School Contest 2004
326
1553
1347
Blog
Spring School Contest 2005
369
1382
1348
Goat in the Garden 2
Spring School Contest 2005
2925
178
1349
Farm
Spring School Contest 2005
10313
51
1350
Canteen
Spring School Contest 2005
1335
389
1351
Good Gnusmas – Dead Gnusmas
Spring School Contest 2005
988
525
1352
Mersenne Primes
Spring School Contest 2005
3970
132
1353
Milliard Vasya's Function
Spring School Contest 2005
5056
103
1354
Palindrome. Again Palindrome
Spring School Contest 2005
3769
139
1355
Bald Spot Revisited
Spring School Contest 2005
2466
212
1356
Something Easier
Spring School Contest 2005
1752
297
1357
Teakettle 1.0 for Dummies
Spring School Contest 2005
430
1190
1358
Cables
Spring School Contest 2005
953
544
1359
Construction
Spring School Contest 2005
441
1161
1400
Cellular Characters
Autumn School Contest 2005
945
550
1401
Gamers
Autumn School Contest 2005
3123
168
1402
Cocktails
Autumn School Contest 2005
4037
130
1403
Courier
Autumn School Contest 2005
1487
351
1404
Easy to Hack!
Autumn School Contest 2005
6596
80
1405
Goat in the Garden 5
Autumn School Contest 2005
725
715
1406
Next Number
Autumn School Contest 2005
1507
346
1407
One-two, One-two
Autumn School Contest 2005
1350
386
1408
Polynomial Multiplication
Autumn School Contest 2005
425
1208
1409
Two Gangsters
Autumn School Contest 2005
34382
15
1489
Points on a Parallelepiped
Autumn School Contest 2006
1254
387
1490
Fire Circle
Autumn School Contest 2006
2491
196
1491
Unreal Story
Autumn School Contest 2006
2376
205
1492
Vasya's Dad 2
Autumn School Contest 2006
233
2013
1493
One Step from Happiness
Autumn School Contest 2006
10393
47
1494
Monobilliards
Autumn School Contest 2006
5244
93
1495
One-two, One-two 2
Autumn School Contest 2006
1430
340
1496
Spammer
Autumn School Contest 2006
9992
49
1497
Cutting a Square
Autumn School Contest 2006
1613
301
1498
Stroke at Full Speed
Autumn School Contest 2006
538
893
1499
Kerchiefs
Autumn School Contest 2006
319
1487
1572
Yekaterinozavodsk Great Well
Autumn School Contest 2007
3095
147
1573
Alchemy
Autumn School Contest 2007
4216
108
1574
Mathematicians and brackets
Autumn School Contest 2007
1270
356
1575
Yekaterinburg Subway 2
Autumn School Contest 2007
520
859
1576
Telephone Tariffs
Autumn School Contest 2007
3108
146
1577
E-mail
Autumn School Contest 2007
949
475
1578
Mammoth Hunt
Autumn School Contest 2007
506
883
1579
Coat Transportation
Autumn School Contest 2007
905
498
1580
Dean's Debts
Autumn School Contest 2007
496
900
1581
Teamwork
Autumn School Contest 2007
11219
41
1639
Chocolate 2
Autumn School Contest 2008
13053
32
1640
Circle of Winter
Autumn School Contest 2008
2387
176
1641
Duties
Autumn School Contest 2008
825
506
1642
1D Maze
Autumn School Contest 2008
4410
96
1643
Attack of the Dark Fortress
Autumn School Contest 2008
979
427
1644
A Whole Lot of Walnuts
Autumn School Contest 2008
4217
100
1645
Ski Race
Autumn School Contest 2008
2104
200
1646
Godzilla Strikes Back!
Autumn School Contest 2008
458
903
1647
Divide an Island!
Autumn School Contest 2008
497
833
1648
Yachts
Autumn School Contest 2008
1090
384
1722
Observation Deck
Ural Regional School Programming Contest 2009
281
1350
1723
Sandro's Book
Ural Regional School Programming Contest 2009
6333
62
1724
Origin of Man Clarified
Ural Regional School Programming Contest 2009
584
661
1725
Sold Out!
Ural Regional School Programming Contest 2009
2791
140
1726
Visits
Ural Regional School Programming Contest 2009
3125
125
1727
Znaika's Magic Numbers
Ural Regional School Programming Contest 2009
1962
199
1728
Curse on Team.GOV
Ural Regional School Programming Contest 2009
736
527
1729
Dead Man's Chest
Ural Regional School Programming Contest 2009
614
630
1730
ManBearPig
Ural Regional School Programming Contest 2009
333
1145
1731
Dill
Ural Regional School Programming Contest 2009
3757
104
1785
Lost in Localization
Ural Regional School Programming Contest 2010
22472
16
1786
Sandro's Biography
Ural Regional School Programming Contest 2010
3337
109
1787
Turn for MEGA
Ural Regional School Programming Contest 2010
14719
25
1788
On the Benefits of Umbrellas
Ural Regional School Programming Contest 2010
2265
160
1789
Searching for the Dodecahedron
Ural Regional School Programming Contest 2010
1664
218
1790
Searching for the Truth
Ural Regional School Programming Contest 2010
253
1385
1791
Uncle Styopa and Buses
Ural Regional School Programming Contest 2010
236
1480
1792
Hamming Code
Ural Regional School Programming Contest 2010
4382
83
1793
Tray 2
Ural Regional School Programming Contest 2010
909
396
1794
Masterpieces of World Architecture
Ural Regional School Programming Contest 2010
1841
197
1795
Husband in a Shop
Ural Regional School Programming Contest 2010
1450
249
1796
Amusement Park
Ural Regional School Programming Contest 2010
3326
109
1873
GOV Chronicles
Ural Regional School Programming Contest 2011
917
363
1874
Football Goal
Ural Regional School Programming Contest 2011
1706
196
1875
Angry Birds
Ural Regional School Programming Contest 2011
337
969
1876
Centipede's Morning
Ural Regional School Programming Contest 2011
6180
54
1877
Bicycle Codes
Ural Regional School Programming Contest 2011
17643
19
1878
Rubinchik's Cube
Ural Regional School Programming Contest 2011
1563
214
1879
GOV-internship 2
Ural Regional School Programming Contest 2011
219
1468
1880
Psych Up's Eigenvalues
Ural Regional School Programming Contest 2011
11157
30
1881
Long problem statement
Ural Regional School Programming Contest 2011
5477
61
1882
Old Nokia
Ural Regional School Programming Contest 2011
112
2756
1883
Ent's Birthday
Ural Regional School Programming Contest 2011
267
1214
1884
Way to the University
Ural Regional School Programming Contest 2011
495
666
1921
Chaos and Order
Ural Regional School Programming Contest 2012
237
1252
1922
Superhero Team
Ural Regional School Programming Contest 2012
972
315
1923
Scary Politics
Ural Regional School Programming Contest 2012
557
546
1924
Four Imps
Ural Regional School Programming Contest 2012
8031
38
1925
British Scientists Save the World
Ural Regional School Programming Contest 2012
4485
69
1926
The Tournament of Intelligences
Ural Regional School Programming Contest 2012
291
1028
1927
Herbs and Magic
Ural Regional School Programming Contest 2012
274
1089
1928
Another Ecology Problem
Ural Regional School Programming Contest 2012
388
777
1929
Teddybears are not for Everyone
Ural Regional School Programming Contest 2012
811
377
1930
Ivan's Car
Ural Regional School Programming Contest 2012
1857
166
2000
Grand Theft Array V
Ural Regional School Programming Contest 2013
1802
156
2001
Mathematicians and Berries
Ural Regional School Programming Contest 2013
13160
21
2002
Test Task
Ural Regional School Programming Contest 2013
4007
70
2003
Simple Magic
Ural Regional School Programming Contest 2013
778
359
2004
Scientists from Spilkovo
Ural Regional School Programming Contest 2013
363
759
2005
Taxi for Programmers
Ural Regional School Programming Contest 2013
3077
92
2006
Kirill the Gardener
Ural Regional School Programming Contest 2013
61
3986
2007
Mutants versus Machines
Ural Regional School Programming Contest 2013
135
1952
2008
Swifty
Ural Regional School Programming Contest 2013
248
1097
2009
Canteen Line
Ural Regional School Programming Contest 2013
326
842
2010
Sasha the Young Grandmaster
Ural Regional School Programming Contest 2013
2145
131
2011
Long Statement
Ural Regional School Programming Contest 2013
2780
101
2024
Adventure Time
Ural Regional School Programming Contest 2014
764
335
2025
Line Fighting
Ural Regional School Programming Contest 2014
4263
61
2026
Dean and Schedule
Ural Regional School Programming Contest 2014
429
591
2027
URCAPL, Episode 1
Ural Regional School Programming Contest 2014
476
534
2028
URCAPL, Episode 2
Ural Regional School Programming Contest 2014
289
868
2029
Towers of Hanoi Strike Back
Ural Regional School Programming Contest 2014
419
605
2030
Awesome Backup System
Ural Regional School Programming Contest 2014
499
510
2031
Overturned Numbers
Ural Regional School Programming Contest 2014
3013
86
2032
Conspiracy Theory and Rebranding
Ural Regional School Programming Contest 2014
322
782
2033
Devices
Ural Regional School Programming Contest 2014
2551
101
2034
Caravans
Ural Regional School Programming Contest 2014
902
284
2035
Another Dress Rehearsal
Ural Regional School Programming Contest 2014
3396
76
2062
Ambitious Experiment
Ural Regional School Programming Contest 2015
811
288
2063
Black and White
Ural Regional School Programming Contest 2015
548
423
2064
Caterpillars
Ural Regional School Programming Contest 2015
234
968
2065
Different Sums
Ural Regional School Programming Contest 2015
754
309
2066
Simple Expression
Ural Regional School Programming Contest 2015
8552
28
2067
Friends and Berries
Ural Regional School Programming Contest 2015
725
321
2068
Game of Nuts
Ural Regional School Programming Contest 2015
2221
106
2069
Hard Rock
Ural Regional School Programming Contest 2015
1066
220
2070
Interesting Numbers
Ural Regional School Programming Contest 2015
1014
231
2071
Juice Cocktails
Ural Regional School Programming Contest 2015
357
644
2072
Kirill the Gardener 3
Ural Regional School Programming Contest 2015
1141
205
2073
Log Files
Ural Regional School Programming Contest 2015
995
235
2111
Plato
University academic school olympiad in informatics 2019
2214
71
2112
Battle log
University academic school olympiad in informatics 2019
186
808
2113
Survive the flood
University academic school olympiad in informatics 2019
365
422
2114
My craft
University academic school olympiad in informatics 2019
147
1009
2115
The Knowledge Day
University academic school olympiad in informatics 2019
701
223
2116
He is not a knight for you
University academic school olympiad in informatics 2019
176
851
2117
Polyphemus' triples
University academic school olympiad in informatics 2019
285
537
2138
The Good, the Bad and the Ugly
Ural School Programming Contest 2019
1330
110
2139
Experiment with Juice
Ural School Programming Contest 2019
22
4594
2140
BitMazeCraft
Ural School Programming Contest 2019
114
1185
2141
Sasha Vilkin
Ural School Programming Contest 2019
575
251
2142
Magic
Ural School Programming Contest 2019
1172
124
2143
Victoria!
Ural School Programming Contest 2019
208
674
2144
Cleaning the Room
Ural School Programming Contest 2019
650
223
2145
Olympiad for Everyone
Ural School Programming Contest 2019
380
377
2146
Quiz Show
Ural School Programming Contest 2019
211
665
2147
City Building
Ural School Programming Contest 2019
66
1934
2148
Insane Shot
Ural School Programming Contest 2019
290
490
2149
Pigeonhole Principle
Ural School Programming Contest 2019
989
147
2150
4B and Zoo
Ural School Programming Contest 2020
94
1162
2151
Mahjong
Ural School Programming Contest 2020
117
952
2152
Tax Fees
Ural School Programming Contest 2020
95
1151
2153
Perfect Squad
Ural School Programming Contest 2020
113
983
2154
Flight on a Cannonball
Ural School Programming Contest 2020
37
2571
2155
Quadrocopter
Ural School Programming Contest 2020
105
1051
2156
Interesting Conversations
Ural School Programming Contest 2020
177
646
2157
Skydiving
Ural School Programming Contest 2020
83
1299
2158
Two progressions
Ural School Programming Contest 2021
28
1882
2159
Essay
Ural School Programming Contest 2021
37
1524
2160
Meta-statement
Ural School Programming Contest 2021
48
1235
2161
Mount & Blade
Ural School Programming Contest 2021
81
787
2162
Graphmania
Ural School Programming Contest 2021
53
1136
2163
Interview
Ural School Programming Contest 2021
46
1277
2164
Bookmaker
Ural School Programming Contest 2021
29
1837
2165
Cake Cutter
Ural School Programming Contest 2021
28
1884
2166
Two Roads
Ural School Programming Contest 2022
21
2308
2167
Cipher Message 5
Ural School Programming Contest 2022
137
487
2168
Runes in the Field
Ural School Programming Contest 2022
10
3578
2169
City Building 2
Ural School Programming Contest 2022
23
2168
2170
Experiment with Juice 2
Ural School Programming Contest 2022
35
1590
2171
Two Progressions 2
Ural School Programming Contest 2022
38
1491
2172
Meta-statement 2
Ural School Programming Contest 2022
91
709
2173
Meta-statement 3
Ural School Programming Contest 2022
77
823
2174
Dualism of Numbers
Ural School Programming Contest 2023
40
872
2175
Staircase
Ural School Programming Contest 2023
23
1320
2176
Wonderful Numbers
Ural School Programming Contest 2023
29
1118
2177
Vadim and Sudoku: XV-Pairs
Ural School Programming Contest 2023
12
1981
2178
Vadim and Sudoku: Renban
Ural School Programming Contest 2023
9
2292
2179
Need More Roads
Ural School Programming Contest 2023
8
2418
2180
Need More Tasks
Ural School Programming Contest 2023
14
1815
2181
Student, or There and Back Again
Ural School Programming Contest 2023
13
1890
2182
Broken Rum
Ural School Programming Contest 2024
53
692
2183
Good Mood
Ural School Programming Contest 2024
53
692
2184
Flint's Favorite Number
Ural School Programming Contest 2024
20
1452
2185
Journey to the Treasure
Ural School Programming Contest 2024
5
2897
2186
Hands Up!
Ural School Programming Contest 2024
6
2715
2187
Need More Gold
Ural School Programming Contest 2024
11
2074
2188
They are charging the cannon... WHY?!
Ural School Programming Contest 2024
7
2563
2189
I Don't Like These Sailors!
Ural School Programming Contest 2024
29
1117
Solved problems:
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