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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
15540
99
1021
Sacrament of the Sum
Autumn School Contest 2000
10500
147
1022
Genealogical Tree
Autumn School Contest 2000
10915
141
1023
Buttons
Autumn School Contest 2000
7164
215
1024
Permutations
Autumn School Contest 2000
4840
318
1025
Democracy in Danger
Autumn School Contest 2000
23069
67
1026
Questions and Answers
Autumn School Contest 2000
9849
156
1027
D++ Again
Autumn School Contest 2000
2436
630
1082
Gaby Ivanushka
Spring School Contest 2001
10851
125
1083
Factorials!!!
Spring School Contest 2001
20034
68
1084
Goat in the Garden
Spring School Contest 2001
9050
149
1085
Meeting
Spring School Contest 2001
2163
623
1086
Cryptography
Spring School Contest 2001
12791
106
1087
The Time to Take Stones
Spring School Contest 2001
4932
274
1088
Ilya Murometz
Spring School Contest 2001
1814
742
1089
Verification with the Dictionary
Spring School Contest 2001
1607
837
1116
Piecewise Constant Function
Autumn School Contest 2001
1497
330
1117
Hierarchy
Autumn School Contest 2001
1777
278
1118
Nontrivial Numbers
Autumn School Contest 2001
4827
103
1119
Metro
Autumn School Contest 2001
7028
71
1120
Sum of Sequential Numbers
Autumn School Contest 2001
5717
87
1121
Branches
Autumn School Contest 2001
1415
349
1122
Game
Autumn School Contest 2001
1992
248
1123
Salary
Autumn School Contest 2001
4094
121
1190
Bar of Chocolate
Spring School Contest 2002
1608
309
1191
Catch the thief!
Spring School Contest 2002
2015
247
1192
Ball in a Dream
Spring School Contest 2002
4592
109
1193
Queue at the Exam
Spring School Contest 2002
2756
181
1194
Handshakes
Spring School Contest 2002
6053
82
1195
Ouths and Crosses
Spring School Contest 2002
1922
259
1196
History Exam
Spring School Contest 2002
9391
53
1197
Lonesome Knight
Spring School Contest 2002
17985
28
1209
1, 10, 100, 1000...
Autumn School Contest 2002
14677
34
1210
Kind Spirits
Autumn School Contest 2002
3074
163
1211
Collective Guarantee
Autumn School Contest 2002
1617
310
1212
Battleship
Autumn School Contest 2002
1018
490
1213
Cockroaches!
Autumn School Contest 2002
2959
170
1214
Strange Procedure
Autumn School Contest 2002
4950
102
1215
Exactness of Projectile Hit
Autumn School Contest 2002
1669
300
1257
Hyphenation
Autumn School Contest 2003
282
1746
1258
Pool
Autumn School Contest 2003
1212
417
1259
How to Become Star?
Autumn School Contest 2003
1286
393
1260
Nudnik Photographer
Autumn School Contest 2003
4606
110
1261
Tips
Autumn School Contest 2003
1543
328
1262
Pseudo-Roman Number
Autumn School Contest 2003
1302
388
1263
Elections
Autumn School Contest 2003
11962
43
1264
Workdays
Autumn School Contest 2003
24187
21
1290
Sabotage
Spring School Contest 2004
6412
80
1291
Gear-wheels
Spring School Contest 2004
1324
384
1292
Mars Space Stations
Spring School Contest 2004
1343
379
1293
Eniya
Spring School Contest 2004
35241
15
1294
Mars Satellites
Spring School Contest 2004
1620
314
1295
Crazy Notions
Spring School Contest 2004
3395
150
1296
Hyperjump
Spring School Contest 2004
7981
64
1297
Palindrome
Spring School Contest 2004
6251
82
1298
Knight
Spring School Contest 2004
2192
233
1299
Psylonians
Spring School Contest 2004
323
1538
1327
Fuses
Autumn School Contest 2004
11039
47
1328
Fireball
Autumn School Contest 2004
356
1408
1329
Galactic History
Autumn School Contest 2004
1106
462
1330
Intervals
Autumn School Contest 2004
5379
96
1331
Vladislava
Autumn School Contest 2004
505
1001
1332
Genie Bomber
Autumn School Contest 2004
817
623
1333
Genie Bomber 2
Autumn School Contest 2004
2371
216
1334
Checkers
Autumn School Contest 2004
943
541
1335
White Thesis
Autumn School Contest 2004
2840
181
1336
Problem of Ben Betsalel
Autumn School Contest 2004
4228
122
1337
Bureaucracy
Autumn School Contest 2004
320
1562
1347
Blog
Spring School Contest 2005
365
1380
1348
Goat in the Garden 2
Spring School Contest 2005
2834
182
1349
Farm
Spring School Contest 2005
10219
51
1350
Canteen
Spring School Contest 2005
1303
394
1351
Good Gnusmas – Dead Gnusmas
Spring School Contest 2005
976
525
1352
Mersenne Primes
Spring School Contest 2005
3951
131
1353
Milliard Vasya's Function
Spring School Contest 2005
5004
103
1354
Palindrome. Again Palindrome
Spring School Contest 2005
3737
138
1355
Bald Spot Revisited
Spring School Contest 2005
2447
211
1356
Something Easier
Spring School Contest 2005
1741
295
1357
Teakettle 1.0 for Dummies
Spring School Contest 2005
425
1189
1358
Cables
Spring School Contest 2005
946
541
1359
Construction
Spring School Contest 2005
437
1157
1400
Cellular Characters
Autumn School Contest 2005
937
548
1401
Gamers
Autumn School Contest 2005
2975
174
1402
Cocktails
Autumn School Contest 2005
4014
129
1403
Courier
Autumn School Contest 2005
1474
350
1404
Easy to Hack!
Autumn School Contest 2005
6458
80
1405
Goat in the Garden 5
Autumn School Contest 2005
713
718
1406
Next Number
Autumn School Contest 2005
1498
344
1407
One-two, One-two
Autumn School Contest 2005
1339
385
1408
Polynomial Multiplication
Autumn School Contest 2005
422
1202
1409
Two Gangsters
Autumn School Contest 2005
33782
15
1489
Points on a Parallelepiped
Autumn School Contest 2006
1236
387
1490
Fire Circle
Autumn School Contest 2006
2454
196
1491
Unreal Story
Autumn School Contest 2006
2307
208
1492
Vasya's Dad 2
Autumn School Contest 2006
231
2002
1493
One Step from Happiness
Autumn School Contest 2006
10221
47
1494
Monobilliards
Autumn School Contest 2006
5029
96
1495
One-two, One-two 2
Autumn School Contest 2006
1415
339
1496
Spammer
Autumn School Contest 2006
9876
49
1497
Cutting a Square
Autumn School Contest 2006
1603
299
1498
Stroke at Full Speed
Autumn School Contest 2006
534
887
1499
Kerchiefs
Autumn School Contest 2006
317
1475
1572
Yekaterinozavodsk Great Well
Autumn School Contest 2007
3068
146
1573
Alchemy
Autumn School Contest 2007
4186
107
1574
Mathematicians and brackets
Autumn School Contest 2007
1256
354
1575
Yekaterinburg Subway 2
Autumn School Contest 2007
510
862
1576
Telephone Tariffs
Autumn School Contest 2007
3050
146
1577
E-mail
Autumn School Contest 2007
937
473
1578
Mammoth Hunt
Autumn School Contest 2007
502
875
1579
Coat Transportation
Autumn School Contest 2007
895
495
1580
Dean's Debts
Autumn School Contest 2007
492
893
1581
Teamwork
Autumn School Contest 2007
11116
40
1639
Chocolate 2
Autumn School Contest 2008
12920
32
1640
Circle of Winter
Autumn School Contest 2008
2373
174
1641
Duties
Autumn School Contest 2008
819
500
1642
1D Maze
Autumn School Contest 2008
4329
96
1643
Attack of the Dark Fortress
Autumn School Contest 2008
968
424
1644
A Whole Lot of Walnuts
Autumn School Contest 2008
4178
99
1645
Ski Race
Autumn School Contest 2008
2086
198
1646
Godzilla Strikes Back!
Autumn School Contest 2008
457
888
1647
Divide an Island!
Autumn School Contest 2008
487
834
1648
Yachts
Autumn School Contest 2008
1081
380
1722
Observation Deck
Ural Regional School Programming Contest 2009
277
1341
1723
Sandro's Book
Ural Regional School Programming Contest 2009
6238
62
1724
Origin of Man Clarified
Ural Regional School Programming Contest 2009
575
658
1725
Sold Out!
Ural Regional School Programming Contest 2009
2764
139
1726
Visits
Ural Regional School Programming Contest 2009
2963
129
1727
Znaika's Magic Numbers
Ural Regional School Programming Contest 2009
1939
197
1728
Curse on Team.GOV
Ural Regional School Programming Contest 2009
722
526
1729
Dead Man's Chest
Ural Regional School Programming Contest 2009
605
626
1730
ManBearPig
Ural Regional School Programming Contest 2009
331
1128
1731
Dill
Ural Regional School Programming Contest 2009
3727
103
1785
Lost in Localization
Ural Regional School Programming Contest 2010
22094
16
1786
Sandro's Biography
Ural Regional School Programming Contest 2010
3316
107
1787
Turn for MEGA
Ural Regional School Programming Contest 2010
14384
25
1788
On the Benefits of Umbrellas
Ural Regional School Programming Contest 2010
2247
158
1789
Searching for the Dodecahedron
Ural Regional School Programming Contest 2010
1653
214
1790
Searching for the Truth
Ural Regional School Programming Contest 2010
252
1358
1791
Uncle Styopa and Buses
Ural Regional School Programming Contest 2010
236
1446
1792
Hamming Code
Ural Regional School Programming Contest 2010
4339
82
1793
Tray 2
Ural Regional School Programming Contest 2010
900
391
1794
Masterpieces of World Architecture
Ural Regional School Programming Contest 2010
1810
195
1795
Husband in a Shop
Ural Regional School Programming Contest 2010
1432
247
1796
Amusement Park
Ural Regional School Programming Contest 2010
3302
107
1873
GOV Chronicles
Ural Regional School Programming Contest 2011
910
356
1874
Football Goal
Ural Regional School Programming Contest 2011
1691
192
1875
Angry Birds
Ural Regional School Programming Contest 2011
330
963
1876
Centipede's Morning
Ural Regional School Programming Contest 2011
6100
54
1877
Bicycle Codes
Ural Regional School Programming Contest 2011
17276
19
1878
Rubinchik's Cube
Ural Regional School Programming Contest 2011
1548
210
1879
GOV-internship 2
Ural Regional School Programming Contest 2011
216
1448
1880
Psych Up's Eigenvalues
Ural Regional School Programming Contest 2011
10873
30
1881
Long problem statement
Ural Regional School Programming Contest 2011
5434
60
1882
Old Nokia
Ural Regional School Programming Contest 2011
108
2774
1883
Ent's Birthday
Ural Regional School Programming Contest 2011
264
1195
1884
Way to the University
Ural Regional School Programming Contest 2011
489
656
1921
Chaos and Order
Ural Regional School Programming Contest 2012
235
1225
1922
Superhero Team
Ural Regional School Programming Contest 2012
962
309
1923
Scary Politics
Ural Regional School Programming Contest 2012
549
537
1924
Four Imps
Ural Regional School Programming Contest 2012
7944
38
1925
British Scientists Save the World
Ural Regional School Programming Contest 2012
4440
67
1926
The Tournament of Intelligences
Ural Regional School Programming Contest 2012
287
1011
1927
Herbs and Magic
Ural Regional School Programming Contest 2012
271
1068
1928
Another Ecology Problem
Ural Regional School Programming Contest 2012
384
762
1929
Teddybears are not for Everyone
Ural Regional School Programming Contest 2012
787
377
1930
Ivan's Car
Ural Regional School Programming Contest 2012
1799
166
2000
Grand Theft Array V
Ural Regional School Programming Contest 2013
1786
152
2001
Mathematicians and Berries
Ural Regional School Programming Contest 2013
12766
21
2002
Test Task
Ural Regional School Programming Contest 2013
3890
70
2003
Simple Magic
Ural Regional School Programming Contest 2013
769
351
2004
Scientists from Spilkovo
Ural Regional School Programming Contest 2013
355
749
2005
Taxi for Programmers
Ural Regional School Programming Contest 2013
3021
90
2006
Kirill the Gardener
Ural Regional School Programming Contest 2013
59
3963
2007
Mutants versus Machines
Ural Regional School Programming Contest 2013
133
1912
2008
Swifty
Ural Regional School Programming Contest 2013
248
1060
2009
Canteen Line
Ural Regional School Programming Contest 2013
319
831
2010
Sasha the Young Grandmaster
Ural Regional School Programming Contest 2013
2121
128
2011
Long Statement
Ural Regional School Programming Contest 2013
2746
99
2024
Adventure Time
Ural Regional School Programming Contest 2014
753
327
2025
Line Fighting
Ural Regional School Programming Contest 2014
4172
60
2026
Dean and Schedule
Ural Regional School Programming Contest 2014
420
580
2027
URCAPL, Episode 1
Ural Regional School Programming Contest 2014
466
524
2028
URCAPL, Episode 2
Ural Regional School Programming Contest 2014
286
843
2029
Towers of Hanoi Strike Back
Ural Regional School Programming Contest 2014
407
599
2030
Awesome Backup System
Ural Regional School Programming Contest 2014
491
498
2031
Overturned Numbers
Ural Regional School Programming Contest 2014
2981
83
2032
Conspiracy Theory and Rebranding
Ural Regional School Programming Contest 2014
315
768
2033
Devices
Ural Regional School Programming Contest 2014
2428
102
2034
Caravans
Ural Regional School Programming Contest 2014
851
290
2035
Another Dress Rehearsal
Ural Regional School Programming Contest 2014
3352
74
2062
Ambitious Experiment
Ural Regional School Programming Contest 2015
794
281
2063
Black and White
Ural Regional School Programming Contest 2015
530
419
2064
Caterpillars
Ural Regional School Programming Contest 2015
231
938
2065
Different Sums
Ural Regional School Programming Contest 2015
743
300
2066
Simple Expression
Ural Regional School Programming Contest 2015
8231
27
2067
Friends and Berries
Ural Regional School Programming Contest 2015
713
313
2068
Game of Nuts
Ural Regional School Programming Contest 2015
2188
103
2069
Hard Rock
Ural Regional School Programming Contest 2015
1053
213
2070
Interesting Numbers
Ural Regional School Programming Contest 2015
995
225
2071
Juice Cocktails
Ural Regional School Programming Contest 2015
350
628
2072
Kirill the Gardener 3
Ural Regional School Programming Contest 2015
1119
200
2073
Log Files
Ural Regional School Programming Contest 2015
985
227
2111
Plato
University academic school olympiad in informatics 2019
2127
69
2112
Battle log
University academic school olympiad in informatics 2019
182
766
2113
Survive the flood
University academic school olympiad in informatics 2019
351
408
2114
My craft
University academic school olympiad in informatics 2019
141
974
2115
The Knowledge Day
University academic school olympiad in informatics 2019
689
211
2116
He is not a knight for you
University academic school olympiad in informatics 2019
163
851
2117
Polyphemus' triples
University academic school olympiad in informatics 2019
267
531
2138
The Good, the Bad and the Ugly
Ural School Programming Contest 2019
1284
105
2139
Experiment with Juice
Ural School Programming Contest 2019
22
4239
2140
BitMazeCraft
Ural School Programming Contest 2019
110
1130
2141
Sasha Vilkin
Ural School Programming Contest 2019
543
245
2142
Magic
Ural School Programming Contest 2019
1123
120
2143
Victoria!
Ural School Programming Contest 2019
199
649
2144
Cleaning the Room
Ural School Programming Contest 2019
591
226
2145
Olympiad for Everyone
Ural School Programming Contest 2019
363
364
2146
Quiz Show
Ural School Programming Contest 2019
201
643
2147
City Building
Ural School Programming Contest 2019
66
1785
2148
Insane Shot
Ural School Programming Contest 2019
262
499
2149
Pigeonhole Principle
Ural School Programming Contest 2019
944
142
2150
4B and Zoo
Ural School Programming Contest 2020
91
1081
2151
Mahjong
Ural School Programming Contest 2020
113
887
2152
Tax Fees
Ural School Programming Contest 2020
91
1081
2153
Perfect Squad
Ural School Programming Contest 2020
107
933
2154
Flight on a Cannonball
Ural School Programming Contest 2020
37
2322
2155
Quadrocopter
Ural School Programming Contest 2020
99
1001
2156
Interesting Conversations
Ural School Programming Contest 2020
164
627
2157
Skydiving
Ural School Programming Contest 2020
76
1269
2158
Two progressions
Ural School Programming Contest 2021
26
1643
2159
Essay
Ural School Programming Contest 2021
33
1379
2160
Meta-statement
Ural School Programming Contest 2021
42
1140
2161
Mount & Blade
Ural School Programming Contest 2021
70
741
2162
Graphmania
Ural School Programming Contest 2021
42
1139
2163
Interview
Ural School Programming Contest 2021
34
1345
2164
Bookmaker
Ural School Programming Contest 2021
26
1647
2165
Cake Cutter
Ural School Programming Contest 2021
22
1851
2166
Two Roads
Ural School Programming Contest 2022
18
2115
2167
Cipher Message 5
Ural School Programming Contest 2022
117
467
2168
Runes in the Field
Ural School Programming Contest 2022
10
2960
2169
City Building 2
Ural School Programming Contest 2022
18
2115
2170
Experiment with Juice 2
Ural School Programming Contest 2022
27
1600
2171
Two Progressions 2
Ural School Programming Contest 2022
32
1410
2172
Meta-statement 2
Ural School Programming Contest 2022
73
714
2173
Meta-statement 3
Ural School Programming Contest 2022
66
780
2174
Dualism of Numbers
Ural School Programming Contest 2023
12
1402
2175
Staircase
Ural School Programming Contest 2023
9
1623
2176
Wonderful Numbers
Ural School Programming Contest 2023
11
1470
2177
Vadim and Sudoku: XV-Pairs
Ural School Programming Contest 2023
4
2203
2178
Vadim and Sudoku: Renban
Ural School Programming Contest 2023
5
2055
2179
Need More Roads
Ural School Programming Contest 2023
4
2200
2180
Need More Tasks
Ural School Programming Contest 2023
6
1927
2181
Student, or There and Back Again
Ural School Programming Contest 2023
5
2049
2182
Broken Rum
Ural School Programming Contest 2024
17
1143
2183
Good Mood
Ural School Programming Contest 2024
14
1285
2184
Flint's Favorite Number
Ural School Programming Contest 2024
7
1813
2185
Journey to the Treasure
Ural School Programming Contest 2024
4
2195
2186
Hands Up!
Ural School Programming Contest 2024
3
2363
2187
Need More Gold
Ural School Programming Contest 2024
4
2201
2188
They are charging the cannon... WHY?!
Ural School Programming Contest 2024
4
2203
2189
I Don't Like These Sailors!
Ural School Programming Contest 2024
8
1713
Solved problems:
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