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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
15730
100
1021
Sacrament of the Sum
Autumn School Contest 2000
10594
148
1022
Genealogical Tree
Autumn School Contest 2000
11042
142
1023
Buttons
Autumn School Contest 2000
7219
217
1024
Permutations
Autumn School Contest 2000
4875
321
1025
Democracy in Danger
Autumn School Contest 2000
23394
67
1026
Questions and Answers
Autumn School Contest 2000
10047
156
1027
D++ Again
Autumn School Contest 2000
2449
637
1082
Gaby Ivanushka
Spring School Contest 2001
10907
126
1083
Factorials!!!
Spring School Contest 2001
20246
68
1084
Goat in the Garden
Spring School Contest 2001
9164
150
1085
Meeting
Spring School Contest 2001
2192
625
1086
Cryptography
Spring School Contest 2001
12938
106
1087
The Time to Take Stones
Spring School Contest 2001
4968
277
1088
Ilya Murometz
Spring School Contest 2001
1825
750
1089
Verification with the Dictionary
Spring School Contest 2001
1627
841
1116
Piecewise Constant Function
Autumn School Contest 2001
1513
332
1117
Hierarchy
Autumn School Contest 2001
1800
279
1118
Nontrivial Numbers
Autumn School Contest 2001
4874
103
1119
Metro
Autumn School Contest 2001
7218
70
1120
Sum of Sequential Numbers
Autumn School Contest 2001
5838
86
1121
Branches
Autumn School Contest 2001
1425
352
1122
Game
Autumn School Contest 2001
2012
250
1123
Salary
Autumn School Contest 2001
4133
122
1190
Bar of Chocolate
Spring School Contest 2002
1486
340
1191
Catch the thief!
Spring School Contest 2002
2038
248
1192
Ball in a Dream
Spring School Contest 2002
4633
109
1193
Queue at the Exam
Spring School Contest 2002
2796
181
1194
Handshakes
Spring School Contest 2002
6090
83
1195
Ouths and Crosses
Spring School Contest 2002
1946
260
1196
History Exam
Spring School Contest 2002
9664
53
1197
Lonesome Knight
Spring School Contest 2002
18311
28
1209
1, 10, 100, 1000...
Autumn School Contest 2002
14980
34
1210
Kind Spirits
Autumn School Contest 2002
3001
170
1211
Collective Guarantee
Autumn School Contest 2002
1638
311
1212
Battleship
Autumn School Contest 2002
1028
493
1213
Cockroaches!
Autumn School Contest 2002
2987
171
1214
Strange Procedure
Autumn School Contest 2002
4992
102
1215
Exactness of Projectile Hit
Autumn School Contest 2002
1694
300
1257
Hyphenation
Autumn School Contest 2003
286
1750
1258
Pool
Autumn School Contest 2003
1230
418
1259
How to Become Star?
Autumn School Contest 2003
1296
397
1260
Nudnik Photographer
Autumn School Contest 2003
4647
111
1261
Tips
Autumn School Contest 2003
1561
330
1262
Pseudo-Roman Number
Autumn School Contest 2003
1317
390
1263
Elections
Autumn School Contest 2003
12170
43
1264
Workdays
Autumn School Contest 2003
24702
21
1290
Sabotage
Spring School Contest 2004
6480
80
1291
Gear-wheels
Spring School Contest 2004
1348
383
1292
Mars Space Stations
Spring School Contest 2004
1360
380
1293
Eniya
Spring School Contest 2004
35935
14
1294
Mars Satellites
Spring School Contest 2004
1635
316
1295
Crazy Notions
Spring School Contest 2004
3430
151
1296
Hyperjump
Spring School Contest 2004
8325
62
1297
Palindrome
Spring School Contest 2004
6327
82
1298
Knight
Spring School Contest 2004
2225
233
1299
Psylonians
Spring School Contest 2004
328
1539
1327
Fuses
Autumn School Contest 2004
11143
47
1328
Fireball
Autumn School Contest 2004
360
1415
1329
Galactic History
Autumn School Contest 2004
1133
458
1330
Intervals
Autumn School Contest 2004
5465
96
1331
Vladislava
Autumn School Contest 2004
518
991
1332
Genie Bomber
Autumn School Contest 2004
839
617
1333
Genie Bomber 2
Autumn School Contest 2004
2391
218
1334
Checkers
Autumn School Contest 2004
959
540
1335
White Thesis
Autumn School Contest 2004
2861
182
1336
Problem of Ben Betsalel
Autumn School Contest 2004
4256
123
1337
Bureaucracy
Autumn School Contest 2004
331
1535
1347
Blog
Spring School Contest 2005
375
1365
1348
Goat in the Garden 2
Spring School Contest 2005
2933
179
1349
Farm
Spring School Contest 2005
10344
51
1350
Canteen
Spring School Contest 2005
1341
389
1351
Good Gnusmas – Dead Gnusmas
Spring School Contest 2005
993
524
1352
Mersenne Primes
Spring School Contest 2005
3977
132
1353
Milliard Vasya's Function
Spring School Contest 2005
5080
103
1354
Palindrome. Again Palindrome
Spring School Contest 2005
3778
139
1355
Bald Spot Revisited
Spring School Contest 2005
2470
212
1356
Something Easier
Spring School Contest 2005
1754
298
1357
Teakettle 1.0 for Dummies
Spring School Contest 2005
430
1194
1358
Cables
Spring School Contest 2005
964
539
1359
Construction
Spring School Contest 2005
441
1165
1400
Cellular Characters
Autumn School Contest 2005
950
549
1401
Gamers
Autumn School Contest 2005
3132
168
1402
Cocktails
Autumn School Contest 2005
4043
130
1403
Courier
Autumn School Contest 2005
1496
350
1404
Easy to Hack!
Autumn School Contest 2005
6613
80
1405
Goat in the Garden 5
Autumn School Contest 2005
726
716
1406
Next Number
Autumn School Contest 2005
1514
346
1407
One-two, One-two
Autumn School Contest 2005
1353
387
1408
Polynomial Multiplication
Autumn School Contest 2005
425
1212
1409
Two Gangsters
Autumn School Contest 2005
34535
15
1489
Points on a Parallelepiped
Autumn School Contest 2006
1256
388
1490
Fire Circle
Autumn School Contest 2006
2497
196
1491
Unreal Story
Autumn School Contest 2006
2387
205
1492
Vasya's Dad 2
Autumn School Contest 2006
233
2021
1493
One Step from Happiness
Autumn School Contest 2006
10425
47
1494
Monobilliards
Autumn School Contest 2006
5255
93
1495
One-two, One-two 2
Autumn School Contest 2006
1437
339
1496
Spammer
Autumn School Contest 2006
10031
49
1497
Cutting a Square
Autumn School Contest 2006
1615
302
1498
Stroke at Full Speed
Autumn School Contest 2006
543
888
1499
Kerchiefs
Autumn School Contest 2006
322
1479
1572
Yekaterinozavodsk Great Well
Autumn School Contest 2007
3115
146
1573
Alchemy
Autumn School Contest 2007
4255
107
1574
Mathematicians and brackets
Autumn School Contest 2007
1279
355
1575
Yekaterinburg Subway 2
Autumn School Contest 2007
521
861
1576
Telephone Tariffs
Autumn School Contest 2007
3119
146
1577
E-mail
Autumn School Contest 2007
958
473
1578
Mammoth Hunt
Autumn School Contest 2007
506
886
1579
Coat Transportation
Autumn School Contest 2007
907
499
1580
Dean's Debts
Autumn School Contest 2007
505
888
1581
Teamwork
Autumn School Contest 2007
11342
40
1639
Chocolate 2
Autumn School Contest 2008
13136
32
1640
Circle of Winter
Autumn School Contest 2008
2390
177
1641
Duties
Autumn School Contest 2008
827
507
1642
1D Maze
Autumn School Contest 2008
4421
96
1643
Attack of the Dark Fortress
Autumn School Contest 2008
987
426
1644
A Whole Lot of Walnuts
Autumn School Contest 2008
4228
100
1645
Ski Race
Autumn School Contest 2008
2113
200
1646
Godzilla Strikes Back!
Autumn School Contest 2008
464
896
1647
Divide an Island!
Autumn School Contest 2008
498
836
1648
Yachts
Autumn School Contest 2008
1094
385
1722
Observation Deck
Ural Regional School Programming Contest 2009
281
1358
1723
Sandro's Book
Ural Regional School Programming Contest 2009
6348
62
1724
Origin of Man Clarified
Ural Regional School Programming Contest 2009
584
665
1725
Sold Out!
Ural Regional School Programming Contest 2009
2797
141
1726
Visits
Ural Regional School Programming Contest 2009
3132
126
1727
Znaika's Magic Numbers
Ural Regional School Programming Contest 2009
1964
200
1728
Curse on Team.GOV
Ural Regional School Programming Contest 2009
742
525
1729
Dead Man's Chest
Ural Regional School Programming Contest 2009
618
629
1730
ManBearPig
Ural Regional School Programming Contest 2009
334
1148
1731
Dill
Ural Regional School Programming Contest 2009
3764
105
1785
Lost in Localization
Ural Regional School Programming Contest 2010
22580
16
1786
Sandro's Biography
Ural Regional School Programming Contest 2010
3347
109
1787
Turn for MEGA
Ural Regional School Programming Contest 2010
14802
25
1788
On the Benefits of Umbrellas
Ural Regional School Programming Contest 2010
2271
161
1789
Searching for the Dodecahedron
Ural Regional School Programming Contest 2010
1670
218
1790
Searching for the Truth
Ural Regional School Programming Contest 2010
258
1367
1791
Uncle Styopa and Buses
Ural Regional School Programming Contest 2010
238
1478
1792
Hamming Code
Ural Regional School Programming Contest 2010
4387
83
1793
Tray 2
Ural Regional School Programming Contest 2010
911
398
1794
Masterpieces of World Architecture
Ural Regional School Programming Contest 2010
1853
197
1795
Husband in a Shop
Ural Regional School Programming Contest 2010
1451
251
1796
Amusement Park
Ural Regional School Programming Contest 2010
3334
110
1873
GOV Chronicles
Ural Regional School Programming Contest 2011
918
365
1874
Football Goal
Ural Regional School Programming Contest 2011
1710
197
1875
Angry Birds
Ural Regional School Programming Contest 2011
339
970
1876
Centipede's Morning
Ural Regional School Programming Contest 2011
6198
55
1877
Bicycle Codes
Ural Regional School Programming Contest 2011
17744
19
1878
Rubinchik's Cube
Ural Regional School Programming Contest 2011
1564
215
1879
GOV-internship 2
Ural Regional School Programming Contest 2011
220
1472
1880
Psych Up's Eigenvalues
Ural Regional School Programming Contest 2011
11225
30
1881
Long problem statement
Ural Regional School Programming Contest 2011
5527
61
1882
Old Nokia
Ural Regional School Programming Contest 2011
114
2731
1883
Ent's Birthday
Ural Regional School Programming Contest 2011
267
1222
1884
Way to the University
Ural Regional School Programming Contest 2011
496
669
1921
Chaos and Order
Ural Regional School Programming Contest 2012
237
1262
1922
Superhero Team
Ural Regional School Programming Contest 2012
974
317
1923
Scary Politics
Ural Regional School Programming Contest 2012
564
543
1924
Four Imps
Ural Regional School Programming Contest 2012
8109
38
1925
British Scientists Save the World
Ural Regional School Programming Contest 2012
4502
69
1926
The Tournament of Intelligences
Ural Regional School Programming Contest 2012
297
1016
1927
Herbs and Magic
Ural Regional School Programming Contest 2012
281
1072
1928
Another Ecology Problem
Ural Regional School Programming Contest 2012
392
776
1929
Teddybears are not for Everyone
Ural Regional School Programming Contest 2012
814
378
1930
Ivan's Car
Ural Regional School Programming Contest 2012
1874
166
2000
Grand Theft Array V
Ural Regional School Programming Contest 2013
1805
157
2001
Mathematicians and Berries
Ural Regional School Programming Contest 2013
13243
22
2002
Test Task
Ural Regional School Programming Contest 2013
4023
71
2003
Simple Magic
Ural Regional School Programming Contest 2013
783
360
2004
Scientists from Spilkovo
Ural Regional School Programming Contest 2013
365
762
2005
Taxi for Programmers
Ural Regional School Programming Contest 2013
3089
92
2006
Kirill the Gardener
Ural Regional School Programming Contest 2013
62
3967
2007
Mutants versus Machines
Ural Regional School Programming Contest 2013
135
1970
2008
Swifty
Ural Regional School Programming Contest 2013
257
1070
2009
Canteen Line
Ural Regional School Programming Contest 2013
329
842
2010
Sasha the Young Grandmaster
Ural Regional School Programming Contest 2013
2149
132
2011
Long Statement
Ural Regional School Programming Contest 2013
2792
102
2024
Adventure Time
Ural Regional School Programming Contest 2014
771
336
2025
Line Fighting
Ural Regional School Programming Contest 2014
4292
61
2026
Dean and Schedule
Ural Regional School Programming Contest 2014
434
590
2027
URCAPL, Episode 1
Ural Regional School Programming Contest 2014
481
534
2028
URCAPL, Episode 2
Ural Regional School Programming Contest 2014
290
874
2029
Towers of Hanoi Strike Back
Ural Regional School Programming Contest 2014
424
604
2030
Awesome Backup System
Ural Regional School Programming Contest 2014
501
513
2031
Overturned Numbers
Ural Regional School Programming Contest 2014
3021
86
2032
Conspiracy Theory and Rebranding
Ural Regional School Programming Contest 2014
324
785
2033
Devices
Ural Regional School Programming Contest 2014
2561
102
2034
Caravans
Ural Regional School Programming Contest 2014
908
286
2035
Another Dress Rehearsal
Ural Regional School Programming Contest 2014
3418
76
2062
Ambitious Experiment
Ural Regional School Programming Contest 2015
813
290
2063
Black and White
Ural Regional School Programming Contest 2015
554
424
2064
Caterpillars
Ural Regional School Programming Contest 2015
234
979
2065
Different Sums
Ural Regional School Programming Contest 2015
756
312
2066
Simple Expression
Ural Regional School Programming Contest 2015
8647
28
2067
Friends and Berries
Ural Regional School Programming Contest 2015
733
322
2068
Game of Nuts
Ural Regional School Programming Contest 2015
2230
107
2069
Hard Rock
Ural Regional School Programming Contest 2015
1067
222
2070
Interesting Numbers
Ural Regional School Programming Contest 2015
1022
232
2071
Juice Cocktails
Ural Regional School Programming Contest 2015
363
641
2072
Kirill the Gardener 3
Ural Regional School Programming Contest 2015
1158
205
2073
Log Files
Ural Regional School Programming Contest 2015
997
237
2111
Plato
University academic school olympiad in informatics 2019
2235
72
2112
Battle log
University academic school olympiad in informatics 2019
187
819
2113
Survive the flood
University academic school olympiad in informatics 2019
371
424
2114
My craft
University academic school olympiad in informatics 2019
148
1022
2115
The Knowledge Day
University academic school olympiad in informatics 2019
711
224
2116
He is not a knight for you
University academic school olympiad in informatics 2019
176
868
2117
Polyphemus' triples
University academic school olympiad in informatics 2019
289
540
2138
The Good, the Bad and the Ugly
Ural School Programming Contest 2019
1344
111
2139
Experiment with Juice
Ural School Programming Contest 2019
23
4548
2140
BitMazeCraft
Ural School Programming Contest 2019
118
1173
2141
Sasha Vilkin
Ural School Programming Contest 2019
587
251
2142
Magic
Ural School Programming Contest 2019
1187
125
2143
Victoria!
Ural School Programming Contest 2019
213
673
2144
Cleaning the Room
Ural School Programming Contest 2019
663
223
2145
Olympiad for Everyone
Ural School Programming Contest 2019
389
376
2146
Quiz Show
Ural School Programming Contest 2019
223
644
2147
City Building
Ural School Programming Contest 2019
68
1924
2148
Insane Shot
Ural School Programming Contest 2019
291
499
2149
Pigeonhole Principle
Ural School Programming Contest 2019
1000
149
2150
4B and Zoo
Ural School Programming Contest 2020
96
1170
2151
Mahjong
Ural School Programming Contest 2020
126
912
2152
Tax Fees
Ural School Programming Contest 2020
96
1170
2153
Perfect Squad
Ural School Programming Contest 2020
119
962
2154
Flight on a Cannonball
Ural School Programming Contest 2020
37
2639
2155
Quadrocopter
Ural School Programming Contest 2020
113
1009
2156
Interesting Conversations
Ural School Programming Contest 2020
179
656
2157
Skydiving
Ural School Programming Contest 2020
85
1306
2158
Two progressions
Ural School Programming Contest 2021
29
1920
2159
Essay
Ural School Programming Contest 2021
40
1500
2160
Meta-statement
Ural School Programming Contest 2021
54
1172
2161
Mount & Blade
Ural School Programming Contest 2021
86
781
2162
Graphmania
Ural School Programming Contest 2021
57
1118
2163
Interview
Ural School Programming Contest 2021
51
1228
2164
Bookmaker
Ural School Programming Contest 2021
35
1667
2165
Cake Cutter
Ural School Programming Contest 2021
31
1829
2166
Two Roads
Ural School Programming Contest 2022
24
2204
2167
Cipher Message 5
Ural School Programming Contest 2022
143
490
2168
Runes in the Field
Ural School Programming Contest 2022
10
3747
2169
City Building 2
Ural School Programming Contest 2022
28
1972
2170
Experiment with Juice 2
Ural School Programming Contest 2022
41
1469
2171
Two Progressions 2
Ural School Programming Contest 2022
39
1529
2172
Meta-statement 2
Ural School Programming Contest 2022
93
728
2173
Meta-statement 3
Ural School Programming Contest 2022
78
852
2174
Dualism of Numbers
Ural School Programming Contest 2023
40
941
2175
Staircase
Ural School Programming Contest 2023
29
1206
2176
Wonderful Numbers
Ural School Programming Contest 2023
31
1148
2177
Vadim and Sudoku: XV-Pairs
Ural School Programming Contest 2023
18
1680
2178
Vadim and Sudoku: Renban
Ural School Programming Contest 2023
13
2044
2179
Need More Roads
Ural School Programming Contest 2023
12
2137
2180
Need More Tasks
Ural School Programming Contest 2023
18
1680
2181
Student, or There and Back Again
Ural School Programming Contest 2023
18
1676
2182
Broken Rum
Ural School Programming Contest 2024
55
724
2183
Good Mood
Ural School Programming Contest 2024
54
735
2184
Flint's Favorite Number
Ural School Programming Contest 2024
23
1425
2185
Journey to the Treasure
Ural School Programming Contest 2024
8
2607
2186
Hands Up!
Ural School Programming Contest 2024
8
2607
2187
Need More Gold
Ural School Programming Contest 2024
16
1809
2188
They are charging the cannon... WHY?!
Ural School Programming Contest 2024
10
2352
2189
I Don't Like These Sailors!
Ural School Programming Contest 2024
30
1176
Solved problems:
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