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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
15576
99
1021
Sacrament of the Sum
Autumn School Contest 2000
10509
147
1022
Genealogical Tree
Autumn School Contest 2000
10950
141
1023
Buttons
Autumn School Contest 2000
7181
215
1024
Permutations
Autumn School Contest 2000
4846
318
1025
Democracy in Danger
Autumn School Contest 2000
23143
67
1026
Questions and Answers
Autumn School Contest 2000
9861
156
1027
D++ Again
Autumn School Contest 2000
2439
631
1082
Gaby Ivanushka
Spring School Contest 2001
10865
125
1083
Factorials!!!
Spring School Contest 2001
20081
68
1084
Goat in the Garden
Spring School Contest 2001
9061
150
1085
Meeting
Spring School Contest 2001
2171
622
1086
Cryptography
Spring School Contest 2001
12818
106
1087
The Time to Take Stones
Spring School Contest 2001
4940
274
1088
Ilya Murometz
Spring School Contest 2001
1815
744
1089
Verification with the Dictionary
Spring School Contest 2001
1614
836
1116
Piecewise Constant Function
Autumn School Contest 2001
1500
330
1117
Hierarchy
Autumn School Contest 2001
1790
277
1118
Nontrivial Numbers
Autumn School Contest 2001
4836
103
1119
Metro
Autumn School Contest 2001
7144
70
1120
Sum of Sequential Numbers
Autumn School Contest 2001
5727
87
1121
Branches
Autumn School Contest 2001
1416
350
1122
Game
Autumn School Contest 2001
1997
248
1123
Salary
Autumn School Contest 2001
4101
121
1190
Bar of Chocolate
Spring School Contest 2002
1609
309
1191
Catch the thief!
Spring School Contest 2002
2018
247
1192
Ball in a Dream
Spring School Contest 2002
4594
109
1193
Queue at the Exam
Spring School Contest 2002
2759
181
1194
Handshakes
Spring School Contest 2002
6063
83
1195
Ouths and Crosses
Spring School Contest 2002
1927
259
1196
History Exam
Spring School Contest 2002
9429
53
1197
Lonesome Knight
Spring School Contest 2002
18027
28
1209
1, 10, 100, 1000...
Autumn School Contest 2002
14724
34
1210
Kind Spirits
Autumn School Contest 2002
3084
163
1211
Collective Guarantee
Autumn School Contest 2002
1618
310
1212
Battleship
Autumn School Contest 2002
1020
490
1213
Cockroaches!
Autumn School Contest 2002
2962
170
1214
Strange Procedure
Autumn School Contest 2002
4957
102
1215
Exactness of Projectile Hit
Autumn School Contest 2002
1673
300
1257
Hyphenation
Autumn School Contest 2003
282
1750
1258
Pool
Autumn School Contest 2003
1218
416
1259
How to Become Star?
Autumn School Contest 2003
1288
394
1260
Nudnik Photographer
Autumn School Contest 2003
4616
110
1261
Tips
Autumn School Contest 2003
1547
328
1262
Pseudo-Roman Number
Autumn School Contest 2003
1303
389
1263
Elections
Autumn School Contest 2003
11987
43
1264
Workdays
Autumn School Contest 2003
24275
21
1290
Sabotage
Spring School Contest 2004
6422
80
1291
Gear-wheels
Spring School Contest 2004
1327
384
1292
Mars Space Stations
Spring School Contest 2004
1344
379
1293
Eniya
Spring School Contest 2004
35337
15
1294
Mars Satellites
Spring School Contest 2004
1623
314
1295
Crazy Notions
Spring School Contest 2004
3401
151
1296
Hyperjump
Spring School Contest 2004
8134
63
1297
Palindrome
Spring School Contest 2004
6264
82
1298
Knight
Spring School Contest 2004
2196
233
1299
Psylonians
Spring School Contest 2004
323
1542
1327
Fuses
Autumn School Contest 2004
11055
47
1328
Fireball
Autumn School Contest 2004
357
1408
1329
Galactic History
Autumn School Contest 2004
1111
461
1330
Intervals
Autumn School Contest 2004
5385
96
1331
Vladislava
Autumn School Contest 2004
507
999
1332
Genie Bomber
Autumn School Contest 2004
821
622
1333
Genie Bomber 2
Autumn School Contest 2004
2376
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
4235
122
1337
Bureaucracy
Autumn School Contest 2004
321
1561
1347
Blog
Spring School Contest 2005
368
1372
1348
Goat in the Garden 2
Spring School Contest 2005
2837
182
1349
Farm
Spring School Contest 2005
10248
51
1350
Canteen
Spring School Contest 2005
1306
394
1351
Good Gnusmas – Dead Gnusmas
Spring School Contest 2005
984
522
1352
Mersenne Primes
Spring School Contest 2005
3957
131
1353
Milliard Vasya's Function
Spring School Contest 2005
5029
103
1354
Palindrome. Again Palindrome
Spring School Contest 2005
3750
138
1355
Bald Spot Revisited
Spring School Contest 2005
2453
211
1356
Something Easier
Spring School Contest 2005
1742
296
1357
Teakettle 1.0 for Dummies
Spring School Contest 2005
427
1187
1358
Cables
Spring School Contest 2005
948
541
1359
Construction
Spring School Contest 2005
437
1160
1400
Cellular Characters
Autumn School Contest 2005
938
549
1401
Gamers
Autumn School Contest 2005
3086
168
1402
Cocktails
Autumn School Contest 2005
4023
129
1403
Courier
Autumn School Contest 2005
1479
350
1404
Easy to Hack!
Autumn School Contest 2005
6472
80
1405
Goat in the Garden 5
Autumn School Contest 2005
719
714
1406
Next Number
Autumn School Contest 2005
1500
345
1407
One-two, One-two
Autumn School Contest 2005
1341
385
1408
Polynomial Multiplication
Autumn School Contest 2005
423
1202
1409
Two Gangsters
Autumn School Contest 2005
33888
15
1489
Points on a Parallelepiped
Autumn School Contest 2006
1242
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
2008
1493
One Step from Happiness
Autumn School Contest 2006
10254
47
1494
Monobilliards
Autumn School Contest 2006
5200
93
1495
One-two, One-two 2
Autumn School Contest 2006
1417
339
1496
Spammer
Autumn School Contest 2006
9901
49
1497
Cutting a Square
Autumn School Contest 2006
1603
300
1498
Stroke at Full Speed
Autumn School Contest 2006
537
885
1499
Kerchiefs
Autumn School Contest 2006
317
1480
1572
Yekaterinozavodsk Great Well
Autumn School Contest 2007
3075
146
1573
Alchemy
Autumn School Contest 2007
4193
107
1574
Mathematicians and brackets
Autumn School Contest 2007
1262
354
1575
Yekaterinburg Subway 2
Autumn School Contest 2007
513
860
1576
Telephone Tariffs
Autumn School Contest 2007
3057
147
1577
E-mail
Autumn School Contest 2007
941
473
1578
Mammoth Hunt
Autumn School Contest 2007
502
878
1579
Coat Transportation
Autumn School Contest 2007
896
496
1580
Dean's Debts
Autumn School Contest 2007
494
892
1581
Teamwork
Autumn School Contest 2007
11145
40
1639
Chocolate 2
Autumn School Contest 2008
12948
32
1640
Circle of Winter
Autumn School Contest 2008
2375
175
1641
Duties
Autumn School Contest 2008
822
500
1642
1D Maze
Autumn School Contest 2008
4336
96
1643
Attack of the Dark Fortress
Autumn School Contest 2008
973
424
1644
A Whole Lot of Walnuts
Autumn School Contest 2008
4188
99
1645
Ski Race
Autumn School Contest 2008
2089
198
1646
Godzilla Strikes Back!
Autumn School Contest 2008
457
892
1647
Divide an Island!
Autumn School Contest 2008
489
834
1648
Yachts
Autumn School Contest 2008
1084
381
1722
Observation Deck
Ural Regional School Programming Contest 2009
279
1337
1723
Sandro's Book
Ural Regional School Programming Contest 2009
6263
62
1724
Origin of Man Clarified
Ural Regional School Programming Contest 2009
578
657
1725
Sold Out!
Ural Regional School Programming Contest 2009
2773
139
1726
Visits
Ural Regional School Programming Contest 2009
3094
125
1727
Znaika's Magic Numbers
Ural Regional School Programming Contest 2009
1945
198
1728
Curse on Team.GOV
Ural Regional School Programming Contest 2009
728
524
1729
Dead Man's Chest
Ural Regional School Programming Contest 2009
607
626
1730
ManBearPig
Ural Regional School Programming Contest 2009
331
1133
1731
Dill
Ural Regional School Programming Contest 2009
3736
103
1785
Lost in Localization
Ural Regional School Programming Contest 2010
22175
16
1786
Sandro's Biography
Ural Regional School Programming Contest 2010
3323
107
1787
Turn for MEGA
Ural Regional School Programming Contest 2010
14449
25
1788
On the Benefits of Umbrellas
Ural Regional School Programming Contest 2010
2250
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
1359
1791
Uncle Styopa and Buses
Ural Regional School Programming Contest 2010
236
1453
1792
Hamming Code
Ural Regional School Programming Contest 2010
4344
82
1793
Tray 2
Ural Regional School Programming Contest 2010
903
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
1436
247
1796
Amusement Park
Ural Regional School Programming Contest 2010
3309
108
1873
GOV Chronicles
Ural Regional School Programming Contest 2011
911
357
1874
Football Goal
Ural Regional School Programming Contest 2011
1697
193
1875
Angry Birds
Ural Regional School Programming Contest 2011
332
963
1876
Centipede's Morning
Ural Regional School Programming Contest 2011
6116
54
1877
Bicycle Codes
Ural Regional School Programming Contest 2011
17340
19
1878
Rubinchik's Cube
Ural Regional School Programming Contest 2011
1553
211
1879
GOV-internship 2
Ural Regional School Programming Contest 2011
217
1450
1880
Psych Up's Eigenvalues
Ural Regional School Programming Contest 2011
10934
30
1881
Long problem statement
Ural Regional School Programming Contest 2011
5446
60
1882
Old Nokia
Ural Regional School Programming Contest 2011
110
2744
1883
Ent's Birthday
Ural Regional School Programming Contest 2011
264
1202
1884
Way to the University
Ural Regional School Programming Contest 2011
493
655
1921
Chaos and Order
Ural Regional School Programming Contest 2012
236
1228
1922
Superhero Team
Ural Regional School Programming Contest 2012
964
310
1923
Scary Politics
Ural Regional School Programming Contest 2012
551
538
1924
Four Imps
Ural Regional School Programming Contest 2012
7966
38
1925
British Scientists Save the World
Ural Regional School Programming Contest 2012
4447
68
1926
The Tournament of Intelligences
Ural Regional School Programming Contest 2012
290
1007
1927
Herbs and Magic
Ural Regional School Programming Contest 2012
271
1075
1928
Another Ecology Problem
Ural Regional School Programming Contest 2012
387
761
1929
Teddybears are not for Everyone
Ural Regional School Programming Contest 2012
805
371
1930
Ivan's Car
Ural Regional School Programming Contest 2012
1810
166
2000
Grand Theft Array V
Ural Regional School Programming Contest 2013
1791
153
2001
Mathematicians and Berries
Ural Regional School Programming Contest 2013
12836
21
2002
Test Task
Ural Regional School Programming Contest 2013
3975
69
2003
Simple Magic
Ural Regional School Programming Contest 2013
771
353
2004
Scientists from Spilkovo
Ural Regional School Programming Contest 2013
359
747
2005
Taxi for Programmers
Ural Regional School Programming Contest 2013
3027
91
2006
Kirill the Gardener
Ural Regional School Programming Contest 2013
59
3993
2007
Mutants versus Machines
Ural Regional School Programming Contest 2013
133
1927
2008
Swifty
Ural Regional School Programming Contest 2013
248
1068
2009
Canteen Line
Ural Regional School Programming Contest 2013
322
830
2010
Sasha the Young Grandmaster
Ural Regional School Programming Contest 2013
2125
129
2011
Long Statement
Ural Regional School Programming Contest 2013
2756
100
2024
Adventure Time
Ural Regional School Programming Contest 2014
755
329
2025
Line Fighting
Ural Regional School Programming Contest 2014
4203
60
2026
Dean and Schedule
Ural Regional School Programming Contest 2014
423
581
2027
URCAPL, Episode 1
Ural Regional School Programming Contest 2014
469
525
2028
URCAPL, Episode 2
Ural Regional School Programming Contest 2014
288
845
2029
Towers of Hanoi Strike Back
Ural Regional School Programming Contest 2014
412
596
2030
Awesome Backup System
Ural Regional School Programming Contest 2014
494
499
2031
Overturned Numbers
Ural Regional School Programming Contest 2014
2989
84
2032
Conspiracy Theory and Rebranding
Ural Regional School Programming Contest 2014
318
767
2033
Devices
Ural Regional School Programming Contest 2014
2498
100
2034
Caravans
Ural Regional School Programming Contest 2014
859
290
2035
Another Dress Rehearsal
Ural Regional School Programming Contest 2014
3366
75
2062
Ambitious Experiment
Ural Regional School Programming Contest 2015
798
282
2063
Black and White
Ural Regional School Programming Contest 2015
532
421
2064
Caterpillars
Ural Regional School Programming Contest 2015
232
943
2065
Different Sums
Ural Regional School Programming Contest 2015
746
302
2066
Simple Expression
Ural Regional School Programming Contest 2015
8316
27
2067
Friends and Berries
Ural Regional School Programming Contest 2015
716
314
2068
Game of Nuts
Ural Regional School Programming Contest 2015
2198
103
2069
Hard Rock
Ural Regional School Programming Contest 2015
1055
214
2070
Interesting Numbers
Ural Regional School Programming Contest 2015
999
226
2071
Juice Cocktails
Ural Regional School Programming Contest 2015
351
632
2072
Kirill the Gardener 3
Ural Regional School Programming Contest 2015
1126
201
2073
Log Files
Ural Regional School Programming Contest 2015
989
228
2111
Plato
University academic school olympiad in informatics 2019
2152
69
2112
Battle log
University academic school olympiad in informatics 2019
185
767
2113
Survive the flood
University academic school olympiad in informatics 2019
352
413
2114
My craft
University academic school olympiad in informatics 2019
144
971
2115
The Knowledge Day
University academic school olympiad in informatics 2019
691
213
2116
He is not a knight for you
University academic school olympiad in informatics 2019
166
850
2117
Polyphemus' triples
University academic school olympiad in informatics 2019
271
532
2138
The Good, the Bad and the Ugly
Ural School Programming Contest 2019
1298
106
2139
Experiment with Juice
Ural School Programming Contest 2019
22
4315
2140
BitMazeCraft
Ural School Programming Contest 2019
111
1141
2141
Sasha Vilkin
Ural School Programming Contest 2019
552
246
2142
Magic
Ural School Programming Contest 2019
1139
120
2143
Victoria!
Ural School Programming Contest 2019
203
648
2144
Cleaning the Room
Ural School Programming Contest 2019
602
226
2145
Olympiad for Everyone
Ural School Programming Contest 2019
366
367
2146
Quiz Show
Ural School Programming Contest 2019
205
642
2147
City Building
Ural School Programming Contest 2019
66
1817
2148
Insane Shot
Ural School Programming Contest 2019
278
479
2149
Pigeonhole Principle
Ural School Programming Contest 2019
953
143
2150
4B and Zoo
Ural School Programming Contest 2020
91
1105
2151
Mahjong
Ural School Programming Contest 2020
114
900
2152
Tax Fees
Ural School Programming Contest 2020
92
1095
2153
Perfect Squad
Ural School Programming Contest 2020
112
915
2154
Flight on a Cannonball
Ural School Programming Contest 2020
37
2375
2155
Quadrocopter
Ural School Programming Contest 2020
101
1006
2156
Interesting Conversations
Ural School Programming Contest 2020
168
627
2157
Skydiving
Ural School Programming Contest 2020
78
1269
2158
Two progressions
Ural School Programming Contest 2021
26
1716
2159
Essay
Ural School Programming Contest 2021
34
1407
2160
Meta-statement
Ural School Programming Contest 2021
44
1147
2161
Mount & Blade
Ural School Programming Contest 2021
76
720
2162
Graphmania
Ural School Programming Contest 2021
44
1145
2163
Interview
Ural School Programming Contest 2021
38
1288
2164
Bookmaker
Ural School Programming Contest 2021
27
1674
2165
Cake Cutter
Ural School Programming Contest 2021
24
1820
2166
Two Roads
Ural School Programming Contest 2022
18
2209
2167
Cipher Message 5
Ural School Programming Contest 2022
119
480
2168
Runes in the Field
Ural School Programming Contest 2022
10
3092
2169
City Building 2
Ural School Programming Contest 2022
19
2133
2170
Experiment with Juice 2
Ural School Programming Contest 2022
27
1671
2171
Two Progressions 2
Ural School Programming Contest 2022
34
1406
2172
Meta-statement 2
Ural School Programming Contest 2022
80
688
2173
Meta-statement 3
Ural School Programming Contest 2022
68
793
2174
Dualism of Numbers
Ural School Programming Contest 2023
23
1017
2175
Staircase
Ural School Programming Contest 2023
15
1342
2176
Wonderful Numbers
Ural School Programming Contest 2023
18
1200
2177
Vadim and Sudoku: XV-Pairs
Ural School Programming Contest 2023
6
2098
2178
Vadim and Sudoku: Renban
Ural School Programming Contest 2023
6
2096
2179
Need More Roads
Ural School Programming Contest 2023
5
2234
2180
Need More Tasks
Ural School Programming Contest 2023
9
1765
2181
Student, or There and Back Again
Ural School Programming Contest 2023
8
1858
2182
Broken Rum
Ural School Programming Contest 2024
30
839
2183
Good Mood
Ural School Programming Contest 2024
29
861
2184
Flint's Favorite Number
Ural School Programming Contest 2024
12
1525
2185
Journey to the Treasure
Ural School Programming Contest 2024
4
2389
2186
Hands Up!
Ural School Programming Contest 2024
3
2572
2187
Need More Gold
Ural School Programming Contest 2024
4
2395
2188
They are charging the cannon... WHY?!
Ural School Programming Contest 2024
5
2237
2189
I Don't Like These Sailors!
Ural School Programming Contest 2024
14
1398
Solved problems:
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