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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
15660
100
1021
Sacrament of the Sum
Autumn School Contest 2000
10551
148
1022
Genealogical Tree
Autumn School Contest 2000
11005
142
1023
Buttons
Autumn School Contest 2000
7211
216
1024
Permutations
Autumn School Contest 2000
4872
320
1025
Democracy in Danger
Autumn School Contest 2000
23341
67
1026
Questions and Answers
Autumn School Contest 2000
10032
155
1027
D++ Again
Autumn School Contest 2000
2446
635
1082
Gaby Ivanushka
Spring School Contest 2001
10895
126
1083
Factorials!!!
Spring School Contest 2001
20186
68
1084
Goat in the Garden
Spring School Contest 2001
9151
150
1085
Meeting
Spring School Contest 2001
2180
626
1086
Cryptography
Spring School Contest 2001
12910
106
1087
The Time to Take Stones
Spring School Contest 2001
4955
276
1088
Ilya Murometz
Spring School Contest 2001
1824
747
1089
Verification with the Dictionary
Spring School Contest 2001
1622
840
1116
Piecewise Constant Function
Autumn School Contest 2001
1510
331
1117
Hierarchy
Autumn School Contest 2001
1798
278
1118
Nontrivial Numbers
Autumn School Contest 2001
4858
103
1119
Metro
Autumn School Contest 2001
7191
70
1120
Sum of Sequential Numbers
Autumn School Contest 2001
5807
87
1121
Branches
Autumn School Contest 2001
1422
351
1122
Game
Autumn School Contest 2001
2007
249
1123
Salary
Autumn School Contest 2001
4121
122
1190
Bar of Chocolate
Spring School Contest 2002
1474
341
1191
Catch the thief!
Spring School Contest 2002
2025
249
1192
Ball in a Dream
Spring School Contest 2002
4617
109
1193
Queue at the Exam
Spring School Contest 2002
2766
182
1194
Handshakes
Spring School Contest 2002
6078
83
1195
Ouths and Crosses
Spring School Contest 2002
1938
260
1196
History Exam
Spring School Contest 2002
9618
53
1197
Lonesome Knight
Spring School Contest 2002
18206
28
1209
1, 10, 100, 1000...
Autumn School Contest 2002
14854
34
1210
Kind Spirits
Autumn School Contest 2002
2983
170
1211
Collective Guarantee
Autumn School Contest 2002
1627
311
1212
Battleship
Autumn School Contest 2002
1026
492
1213
Cockroaches!
Autumn School Contest 2002
2976
171
1214
Strange Procedure
Autumn School Contest 2002
4980
102
1215
Exactness of Projectile Hit
Autumn School Contest 2002
1688
300
1257
Hyphenation
Autumn School Contest 2003
282
1766
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
4632
111
1261
Tips
Autumn School Contest 2003
1555
330
1262
Pseudo-Roman Number
Autumn School Contest 2003
1310
391
1263
Elections
Autumn School Contest 2003
12119
43
1264
Workdays
Autumn School Contest 2003
24585
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
35768
14
1294
Mars Satellites
Spring School Contest 2004
1630
316
1295
Crazy Notions
Spring School Contest 2004
3419
151
1296
Hyperjump
Spring School Contest 2004
8232
63
1297
Palindrome
Spring School Contest 2004
6304
82
1298
Knight
Spring School Contest 2004
2220
232
1299
Psylonians
Spring School Contest 2004
323
1556
1327
Fuses
Autumn School Contest 2004
11114
47
1328
Fireball
Autumn School Contest 2004
358
1417
1329
Galactic History
Autumn School Contest 2004
1126
459
1330
Intervals
Autumn School Contest 2004
5447
96
1331
Vladislava
Autumn School Contest 2004
515
993
1332
Genie Bomber
Autumn School Contest 2004
829
621
1333
Genie Bomber 2
Autumn School Contest 2004
2388
217
1334
Checkers
Autumn School Contest 2004
956
540
1335
White Thesis
Autumn School Contest 2004
2852
182
1336
Problem of Ben Betsalel
Autumn School Contest 2004
4248
122
1337
Bureaucracy
Autumn School Contest 2004
326
1552
1347
Blog
Spring School Contest 2005
369
1381
1348
Goat in the Garden 2
Spring School Contest 2005
2923
178
1349
Farm
Spring School Contest 2005
10311
51
1350
Canteen
Spring School Contest 2005
1335
389
1351
Good Gnusmas – Dead Gnusmas
Spring School Contest 2005
988
524
1352
Mersenne Primes
Spring School Contest 2005
3970
131
1353
Milliard Vasya's Function
Spring School Contest 2005
5054
103
1354
Palindrome. Again Palindrome
Spring School Contest 2005
3768
139
1355
Bald Spot Revisited
Spring School Contest 2005
2464
212
1356
Something Easier
Spring School Contest 2005
1752
297
1357
Teakettle 1.0 for Dummies
Spring School Contest 2005
430
1189
1358
Cables
Spring School Contest 2005
953
543
1359
Construction
Spring School Contest 2005
441
1160
1400
Cellular Characters
Autumn School Contest 2005
945
550
1401
Gamers
Autumn School Contest 2005
3123
168
1402
Cocktails
Autumn School Contest 2005
4036
130
1403
Courier
Autumn School Contest 2005
1487
351
1404
Easy to Hack!
Autumn School Contest 2005
6578
80
1405
Goat in the Garden 5
Autumn School Contest 2005
724
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
1207
1409
Two Gangsters
Autumn School Contest 2005
34325
15
1489
Points on a Parallelepiped
Autumn School Contest 2006
1254
387
1490
Fire Circle
Autumn School Contest 2006
2490
196
1491
Unreal Story
Autumn School Contest 2006
2376
205
1492
Vasya's Dad 2
Autumn School Contest 2006
233
2012
1493
One Step from Happiness
Autumn School Contest 2006
10389
47
1494
Monobilliards
Autumn School Contest 2006
5243
93
1495
One-two, One-two 2
Autumn School Contest 2006
1430
339
1496
Spammer
Autumn School Contest 2006
9972
49
1497
Cutting a Square
Autumn School Contest 2006
1613
301
1498
Stroke at Full Speed
Autumn School Contest 2006
538
892
1499
Kerchiefs
Autumn School Contest 2006
319
1486
1572
Yekaterinozavodsk Great Well
Autumn School Contest 2007
3094
147
1573
Alchemy
Autumn School Contest 2007
4214
108
1574
Mathematicians and brackets
Autumn School Contest 2007
1270
355
1575
Yekaterinburg Subway 2
Autumn School Contest 2007
520
859
1576
Telephone Tariffs
Autumn School Contest 2007
3074
148
1577
E-mail
Autumn School Contest 2007
949
474
1578
Mammoth Hunt
Autumn School Contest 2007
506
882
1579
Coat Transportation
Autumn School Contest 2007
905
497
1580
Dean's Debts
Autumn School Contest 2007
496
899
1581
Teamwork
Autumn School Contest 2007
11201
41
1639
Chocolate 2
Autumn School Contest 2008
13034
32
1640
Circle of Winter
Autumn School Contest 2008
2387
176
1641
Duties
Autumn School Contest 2008
824
506
1642
1D Maze
Autumn School Contest 2008
4410
95
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
902
1647
Divide an Island!
Autumn School Contest 2008
497
832
1648
Yachts
Autumn School Contest 2008
1090
384
1722
Observation Deck
Ural Regional School Programming Contest 2009
281
1348
1723
Sandro's Book
Ural Regional School Programming Contest 2009
6326
62
1724
Origin of Man Clarified
Ural Regional School Programming Contest 2009
584
661
1725
Sold Out!
Ural Regional School Programming Contest 2009
2790
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
526
1729
Dead Man's Chest
Ural Regional School Programming Contest 2009
613
630
1730
ManBearPig
Ural Regional School Programming Contest 2009
333
1144
1731
Dill
Ural Regional School Programming Contest 2009
3757
104
1785
Lost in Localization
Ural Regional School Programming Contest 2010
22450
16
1786
Sandro's Biography
Ural Regional School Programming Contest 2010
3337
109
1787
Turn for MEGA
Ural Regional School Programming Contest 2010
14624
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
217
1790
Searching for the Truth
Ural Regional School Programming Contest 2010
253
1383
1791
Uncle Styopa and Buses
Ural Regional School Programming Contest 2010
236
1478
1792
Hamming Code
Ural Regional School Programming Contest 2010
4380
83
1793
Tray 2
Ural Regional School Programming Contest 2010
909
396
1794
Masterpieces of World Architecture
Ural Regional School Programming Contest 2010
1841
196
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
362
1874
Football Goal
Ural Regional School Programming Contest 2011
1706
196
1875
Angry Birds
Ural Regional School Programming Contest 2011
337
967
1876
Centipede's Morning
Ural Regional School Programming Contest 2011
6180
54
1877
Bicycle Codes
Ural Regional School Programming Contest 2011
17625
19
1878
Rubinchik's Cube
Ural Regional School Programming Contest 2011
1563
213
1879
GOV-internship 2
Ural Regional School Programming Contest 2011
219
1466
1880
Psych Up's Eigenvalues
Ural Regional School Programming Contest 2011
11113
30
1881
Long problem statement
Ural Regional School Programming Contest 2011
5477
61
1882
Old Nokia
Ural Regional School Programming Contest 2011
112
2751
1883
Ent's Birthday
Ural Regional School Programming Contest 2011
267
1212
1884
Way to the University
Ural Regional School Programming Contest 2011
495
665
1921
Chaos and Order
Ural Regional School Programming Contest 2012
237
1250
1922
Superhero Team
Ural Regional School Programming Contest 2012
972
314
1923
Scary Politics
Ural Regional School Programming Contest 2012
557
545
1924
Four Imps
Ural Regional School Programming Contest 2012
8029
38
1925
British Scientists Save the World
Ural Regional School Programming Contest 2012
4476
69
1926
The Tournament of Intelligences
Ural Regional School Programming Contest 2012
291
1026
1927
Herbs and Magic
Ural Regional School Programming Contest 2012
274
1087
1928
Another Ecology Problem
Ural Regional School Programming Contest 2012
388
776
1929
Teddybears are not for Everyone
Ural Regional School Programming Contest 2012
811
376
1930
Ivan's Car
Ural Regional School Programming Contest 2012
1852
166
2000
Grand Theft Array V
Ural Regional School Programming Contest 2013
1802
156
2001
Mathematicians and Berries
Ural Regional School Programming Contest 2013
13140
21
2002
Test Task
Ural Regional School Programming Contest 2013
4003
70
2003
Simple Magic
Ural Regional School Programming Contest 2013
778
358
2004
Scientists from Spilkovo
Ural Regional School Programming Contest 2013
363
757
2005
Taxi for Programmers
Ural Regional School Programming Contest 2013
3077
91
2006
Kirill the Gardener
Ural Regional School Programming Contest 2013
60
4035
2007
Mutants versus Machines
Ural Regional School Programming Contest 2013
134
1961
2008
Swifty
Ural Regional School Programming Contest 2013
248
1095
2009
Canteen Line
Ural Regional School Programming Contest 2013
326
841
2010
Sasha the Young Grandmaster
Ural Regional School Programming Contest 2013
2143
131
2011
Long Statement
Ural Regional School Programming Contest 2013
2780
101
2024
Adventure Time
Ural Regional School Programming Contest 2014
764
334
2025
Line Fighting
Ural Regional School Programming Contest 2014
4262
61
2026
Dean and Schedule
Ural Regional School Programming Contest 2014
429
590
2027
URCAPL, Episode 1
Ural Regional School Programming Contest 2014
476
533
2028
URCAPL, Episode 2
Ural Regional School Programming Contest 2014
289
866
2029
Towers of Hanoi Strike Back
Ural Regional School Programming Contest 2014
418
605
2030
Awesome Backup System
Ural Regional School Programming Contest 2014
499
509
2031
Overturned Numbers
Ural Regional School Programming Contest 2014
3012
86
2032
Conspiracy Theory and Rebranding
Ural Regional School Programming Contest 2014
322
780
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
3393
76
2062
Ambitious Experiment
Ural Regional School Programming Contest 2015
811
287
2063
Black and White
Ural Regional School Programming Contest 2015
548
422
2064
Caterpillars
Ural Regional School Programming Contest 2015
234
966
2065
Different Sums
Ural Regional School Programming Contest 2015
754
308
2066
Simple Expression
Ural Regional School Programming Contest 2015
8525
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
219
2070
Interesting Numbers
Ural Regional School Programming Contest 2015
1014
230
2071
Juice Cocktails
Ural Regional School Programming Contest 2015
357
642
2072
Kirill the Gardener 3
Ural Regional School Programming Contest 2015
1139
205
2073
Log Files
Ural Regional School Programming Contest 2015
995
234
2111
Plato
University academic school olympiad in informatics 2019
2205
71
2112
Battle log
University academic school olympiad in informatics 2019
186
805
2113
Survive the flood
University academic school olympiad in informatics 2019
365
421
2114
My craft
University academic school olympiad in informatics 2019
147
1004
2115
The Knowledge Day
University academic school olympiad in informatics 2019
700
222
2116
He is not a knight for you
University academic school olympiad in informatics 2019
176
848
2117
Polyphemus' triples
University academic school olympiad in informatics 2019
285
535
2138
The Good, the Bad and the Ugly
Ural School Programming Contest 2019
1328
109
2139
Experiment with Juice
Ural School Programming Contest 2019
22
4573
2140
BitMazeCraft
Ural School Programming Contest 2019
114
1180
2141
Sasha Vilkin
Ural School Programming Contest 2019
573
251
2142
Magic
Ural School Programming Contest 2019
1171
124
2143
Victoria!
Ural School Programming Contest 2019
208
671
2144
Cleaning the Room
Ural School Programming Contest 2019
648
222
2145
Olympiad for Everyone
Ural School Programming Contest 2019
380
375
2146
Quiz Show
Ural School Programming Contest 2019
210
665
2147
City Building
Ural School Programming Contest 2019
66
1926
2148
Insane Shot
Ural School Programming Contest 2019
290
488
2149
Pigeonhole Principle
Ural School Programming Contest 2019
986
147
2150
4B and Zoo
Ural School Programming Contest 2020
94
1156
2151
Mahjong
Ural School Programming Contest 2020
117
946
2152
Tax Fees
Ural School Programming Contest 2020
95
1145
2153
Perfect Squad
Ural School Programming Contest 2020
113
977
2154
Flight on a Cannonball
Ural School Programming Contest 2020
37
2557
2155
Quadrocopter
Ural School Programming Contest 2020
105
1045
2156
Interesting Conversations
Ural School Programming Contest 2020
177
643
2157
Skydiving
Ural School Programming Contest 2020
83
1292
2158
Two progressions
Ural School Programming Contest 2021
28
1863
2159
Essay
Ural School Programming Contest 2021
37
1509
2160
Meta-statement
Ural School Programming Contest 2021
48
1223
2161
Mount & Blade
Ural School Programming Contest 2021
81
779
2162
Graphmania
Ural School Programming Contest 2021
53
1125
2163
Interview
Ural School Programming Contest 2021
45
1288
2164
Bookmaker
Ural School Programming Contest 2021
29
1819
2165
Cake Cutter
Ural School Programming Contest 2021
28
1865
2166
Two Roads
Ural School Programming Contest 2022
21
2285
2167
Cipher Message 5
Ural School Programming Contest 2022
136
486
2168
Runes in the Field
Ural School Programming Contest 2022
10
3542
2169
City Building 2
Ural School Programming Contest 2022
23
2147
2170
Experiment with Juice 2
Ural School Programming Contest 2022
33
1648
2171
Two Progressions 2
Ural School Programming Contest 2022
38
1476
2172
Meta-statement 2
Ural School Programming Contest 2022
91
702
2173
Meta-statement 3
Ural School Programming Contest 2022
77
815
2174
Dualism of Numbers
Ural School Programming Contest 2023
39
874
2175
Staircase
Ural School Programming Contest 2023
23
1298
2176
Wonderful Numbers
Ural School Programming Contest 2023
29
1099
2177
Vadim and Sudoku: XV-Pairs
Ural School Programming Contest 2023
12
1947
2178
Vadim and Sudoku: Renban
Ural School Programming Contest 2023
9
2253
2179
Need More Roads
Ural School Programming Contest 2023
8
2377
2180
Need More Tasks
Ural School Programming Contest 2023
14
1784
2181
Student, or There and Back Again
Ural School Programming Contest 2023
13
1858
2182
Broken Rum
Ural School Programming Contest 2024
49
726
2183
Good Mood
Ural School Programming Contest 2024
50
714
2184
Flint's Favorite Number
Ural School Programming Contest 2024
19
1476
2185
Journey to the Treasure
Ural School Programming Contest 2024
5
2848
2186
Hands Up!
Ural School Programming Contest 2024
6
2670
2187
Need More Gold
Ural School Programming Contest 2024
10
2141
2188
They are charging the cannon... WHY?!
Ural School Programming Contest 2024
7
2519
2189
I Don't Like These Sailors!
Ural School Programming Contest 2024
29
1098
Solved problems:
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