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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
15610
99
1021
Sacrament of the Sum
Autumn School Contest 2000
10532
147
1022
Genealogical Tree
Autumn School Contest 2000
10978
141
1023
Buttons
Autumn School Contest 2000
7194
216
1024
Permutations
Autumn School Contest 2000
4863
319
1025
Democracy in Danger
Autumn School Contest 2000
23206
67
1026
Questions and Answers
Autumn School Contest 2000
9878
157
1027
D++ Again
Autumn School Contest 2000
2444
633
1082
Gaby Ivanushka
Spring School Contest 2001
10883
125
1083
Factorials!!!
Spring School Contest 2001
20143
68
1084
Goat in the Garden
Spring School Contest 2001
9095
150
1085
Meeting
Spring School Contest 2001
2177
624
1086
Cryptography
Spring School Contest 2001
12850
106
1087
The Time to Take Stones
Spring School Contest 2001
4948
275
1088
Ilya Murometz
Spring School Contest 2001
1822
745
1089
Verification with the Dictionary
Spring School Contest 2001
1621
837
1116
Piecewise Constant Function
Autumn School Contest 2001
1504
331
1117
Hierarchy
Autumn School Contest 2001
1796
278
1118
Nontrivial Numbers
Autumn School Contest 2001
4849
103
1119
Metro
Autumn School Contest 2001
7170
70
1120
Sum of Sequential Numbers
Autumn School Contest 2001
5740
87
1121
Branches
Autumn School Contest 2001
1419
351
1122
Game
Autumn School Contest 2001
2002
249
1123
Salary
Autumn School Contest 2001
4111
122
1190
Bar of Chocolate
Spring School Contest 2002
1612
311
1191
Catch the thief!
Spring School Contest 2002
2024
248
1192
Ball in a Dream
Spring School Contest 2002
4609
109
1193
Queue at the Exam
Spring School Contest 2002
2763
182
1194
Handshakes
Spring School Contest 2002
6071
83
1195
Ouths and Crosses
Spring School Contest 2002
1935
259
1196
History Exam
Spring School Contest 2002
9459
53
1197
Lonesome Knight
Spring School Contest 2002
18092
28
1209
1, 10, 100, 1000...
Autumn School Contest 2002
14784
34
1210
Kind Spirits
Autumn School Contest 2002
3103
163
1211
Collective Guarantee
Autumn School Contest 2002
1620
311
1212
Battleship
Autumn School Contest 2002
1023
491
1213
Cockroaches!
Autumn School Contest 2002
2968
170
1214
Strange Procedure
Autumn School Contest 2002
4972
102
1215
Exactness of Projectile Hit
Autumn School Contest 2002
1676
301
1257
Hyphenation
Autumn School Contest 2003
282
1760
1258
Pool
Autumn School Contest 2003
1222
417
1259
How to Become Star?
Autumn School Contest 2003
1290
395
1260
Nudnik Photographer
Autumn School Contest 2003
4628
111
1261
Tips
Autumn School Contest 2003
1549
330
1262
Pseudo-Roman Number
Autumn School Contest 2003
1307
390
1263
Elections
Autumn School Contest 2003
12019
43
1264
Workdays
Autumn School Contest 2003
24372
21
1290
Sabotage
Spring School Contest 2004
6436
80
1291
Gear-wheels
Spring School Contest 2004
1331
385
1292
Mars Space Stations
Spring School Contest 2004
1348
380
1293
Eniya
Spring School Contest 2004
35466
15
1294
Mars Satellites
Spring School Contest 2004
1627
315
1295
Crazy Notions
Spring School Contest 2004
3410
151
1296
Hyperjump
Spring School Contest 2004
8163
63
1297
Palindrome
Spring School Contest 2004
6281
82
1298
Knight
Spring School Contest 2004
2206
233
1299
Psylonians
Spring School Contest 2004
323
1550
1327
Fuses
Autumn School Contest 2004
11079
47
1328
Fireball
Autumn School Contest 2004
358
1411
1329
Galactic History
Autumn School Contest 2004
1119
460
1330
Intervals
Autumn School Contest 2004
5404
96
1331
Vladislava
Autumn School Contest 2004
510
999
1332
Genie Bomber
Autumn School Contest 2004
827
621
1333
Genie Bomber 2
Autumn School Contest 2004
2381
217
1334
Checkers
Autumn School Contest 2004
951
540
1335
White Thesis
Autumn School Contest 2004
2848
182
1336
Problem of Ben Betsalel
Autumn School Contest 2004
4245
122
1337
Bureaucracy
Autumn School Contest 2004
324
1555
1347
Blog
Spring School Contest 2005
369
1376
1348
Goat in the Garden 2
Spring School Contest 2005
2905
179
1349
Farm
Spring School Contest 2005
10285
51
1350
Canteen
Spring School Contest 2005
1332
389
1351
Good Gnusmas – Dead Gnusmas
Spring School Contest 2005
985
524
1352
Mersenne Primes
Spring School Contest 2005
3967
131
1353
Milliard Vasya's Function
Spring School Contest 2005
5047
103
1354
Palindrome. Again Palindrome
Spring School Contest 2005
3763
138
1355
Bald Spot Revisited
Spring School Contest 2005
2460
211
1356
Something Easier
Spring School Contest 2005
1748
297
1357
Teakettle 1.0 for Dummies
Spring School Contest 2005
428
1190
1358
Cables
Spring School Contest 2005
952
542
1359
Construction
Spring School Contest 2005
439
1161
1400
Cellular Characters
Autumn School Contest 2005
941
550
1401
Gamers
Autumn School Contest 2005
3113
168
1402
Cocktails
Autumn School Contest 2005
4032
129
1403
Courier
Autumn School Contest 2005
1481
351
1404
Easy to Hack!
Autumn School Contest 2005
6488
81
1405
Goat in the Garden 5
Autumn School Contest 2005
720
717
1406
Next Number
Autumn School Contest 2005
1502
346
1407
One-two, One-two
Autumn School Contest 2005
1346
386
1408
Polynomial Multiplication
Autumn School Contest 2005
424
1205
1409
Two Gangsters
Autumn School Contest 2005
34032
15
1489
Points on a Parallelepiped
Autumn School Contest 2006
1245
388
1490
Fire Circle
Autumn School Contest 2006
2463
197
1491
Unreal Story
Autumn School Contest 2006
2330
208
1492
Vasya's Dad 2
Autumn School Contest 2006
233
2003
1493
One Step from Happiness
Autumn School Contest 2006
10283
47
1494
Monobilliards
Autumn School Contest 2006
5229
93
1495
One-two, One-two 2
Autumn School Contest 2006
1424
339
1496
Spammer
Autumn School Contest 2006
9945
49
1497
Cutting a Square
Autumn School Contest 2006
1608
301
1498
Stroke at Full Speed
Autumn School Contest 2006
538
888
1499
Kerchiefs
Autumn School Contest 2006
319
1479
1572
Yekaterinozavodsk Great Well
Autumn School Contest 2007
3085
146
1573
Alchemy
Autumn School Contest 2007
4208
107
1574
Mathematicians and brackets
Autumn School Contest 2007
1266
355
1575
Yekaterinburg Subway 2
Autumn School Contest 2007
516
861
1576
Telephone Tariffs
Autumn School Contest 2007
3068
147
1577
E-mail
Autumn School Contest 2007
944
475
1578
Mammoth Hunt
Autumn School Contest 2007
504
881
1579
Coat Transportation
Autumn School Contest 2007
900
498
1580
Dean's Debts
Autumn School Contest 2007
496
895
1581
Teamwork
Autumn School Contest 2007
11173
40
1639
Chocolate 2
Autumn School Contest 2008
12992
32
1640
Circle of Winter
Autumn School Contest 2008
2382
175
1641
Duties
Autumn School Contest 2008
824
503
1642
1D Maze
Autumn School Contest 2008
4350
96
1643
Attack of the Dark Fortress
Autumn School Contest 2008
977
425
1644
A Whole Lot of Walnuts
Autumn School Contest 2008
4203
100
1645
Ski Race
Autumn School Contest 2008
2095
199
1646
Godzilla Strikes Back!
Autumn School Contest 2008
458
897
1647
Divide an Island!
Autumn School Contest 2008
492
836
1648
Yachts
Autumn School Contest 2008
1086
383
1722
Observation Deck
Ural Regional School Programming Contest 2009
279
1349
1723
Sandro's Book
Ural Regional School Programming Contest 2009
6294
62
1724
Origin of Man Clarified
Ural Regional School Programming Contest 2009
582
659
1725
Sold Out!
Ural Regional School Programming Contest 2009
2781
140
1726
Visits
Ural Regional School Programming Contest 2009
3115
125
1727
Znaika's Magic Numbers
Ural Regional School Programming Contest 2009
1951
199
1728
Curse on Team.GOV
Ural Regional School Programming Contest 2009
733
525
1729
Dead Man's Chest
Ural Regional School Programming Contest 2009
611
628
1730
ManBearPig
Ural Regional School Programming Contest 2009
331
1143
1731
Dill
Ural Regional School Programming Contest 2009
3746
104
1785
Lost in Localization
Ural Regional School Programming Contest 2010
22251
16
1786
Sandro's Biography
Ural Regional School Programming Contest 2010
3331
108
1787
Turn for MEGA
Ural Regional School Programming Contest 2010
14512
25
1788
On the Benefits of Umbrellas
Ural Regional School Programming Contest 2010
2258
159
1789
Searching for the Dodecahedron
Ural Regional School Programming Contest 2010
1658
216
1790
Searching for the Truth
Ural Regional School Programming Contest 2010
253
1373
1791
Uncle Styopa and Buses
Ural Regional School Programming Contest 2010
236
1468
1792
Hamming Code
Ural Regional School Programming Contest 2010
4356
83
1793
Tray 2
Ural Regional School Programming Contest 2010
909
393
1794
Masterpieces of World Architecture
Ural Regional School Programming Contest 2010
1819
197
1795
Husband in a Shop
Ural Regional School Programming Contest 2010
1446
248
1796
Amusement Park
Ural Regional School Programming Contest 2010
3316
109
1873
GOV Chronicles
Ural Regional School Programming Contest 2011
913
361
1874
Football Goal
Ural Regional School Programming Contest 2011
1702
194
1875
Angry Birds
Ural Regional School Programming Contest 2011
334
968
1876
Centipede's Morning
Ural Regional School Programming Contest 2011
6140
54
1877
Bicycle Codes
Ural Regional School Programming Contest 2011
17429
19
1878
Rubinchik's Cube
Ural Regional School Programming Contest 2011
1556
213
1879
GOV-internship 2
Ural Regional School Programming Contest 2011
219
1454
1880
Psych Up's Eigenvalues
Ural Regional School Programming Contest 2011
10992
30
1881
Long problem statement
Ural Regional School Programming Contest 2011
5462
61
1882
Old Nokia
Ural Regional School Programming Contest 2011
112
2729
1883
Ent's Birthday
Ural Regional School Programming Contest 2011
266
1206
1884
Way to the University
Ural Regional School Programming Contest 2011
494
661
1921
Chaos and Order
Ural Regional School Programming Contest 2012
237
1239
1922
Superhero Team
Ural Regional School Programming Contest 2012
966
313
1923
Scary Politics
Ural Regional School Programming Contest 2012
554
542
1924
Four Imps
Ural Regional School Programming Contest 2012
7999
38
1925
British Scientists Save the World
Ural Regional School Programming Contest 2012
4461
68
1926
The Tournament of Intelligences
Ural Regional School Programming Contest 2012
290
1020
1927
Herbs and Magic
Ural Regional School Programming Contest 2012
272
1085
1928
Another Ecology Problem
Ural Regional School Programming Contest 2012
388
769
1929
Teddybears are not for Everyone
Ural Regional School Programming Contest 2012
808
374
1930
Ivan's Car
Ural Regional School Programming Contest 2012
1838
166
2000
Grand Theft Array V
Ural Regional School Programming Contest 2013
1798
155
2001
Mathematicians and Berries
Ural Regional School Programming Contest 2013
12913
22
2002
Test Task
Ural Regional School Programming Contest 2013
3991
70
2003
Simple Magic
Ural Regional School Programming Contest 2013
775
356
2004
Scientists from Spilkovo
Ural Regional School Programming Contest 2013
361
753
2005
Taxi for Programmers
Ural Regional School Programming Contest 2013
3068
91
2006
Kirill the Gardener
Ural Regional School Programming Contest 2013
60
3993
2007
Mutants versus Machines
Ural Regional School Programming Contest 2013
133
1955
2008
Swifty
Ural Regional School Programming Contest 2013
248
1083
2009
Canteen Line
Ural Regional School Programming Contest 2013
325
834
2010
Sasha the Young Grandmaster
Ural Regional School Programming Contest 2013
2133
130
2011
Long Statement
Ural Regional School Programming Contest 2013
2771
101
2024
Adventure Time
Ural Regional School Programming Contest 2014
759
333
2025
Line Fighting
Ural Regional School Programming Contest 2014
4244
60
2026
Dean and Schedule
Ural Regional School Programming Contest 2014
427
585
2027
URCAPL, Episode 1
Ural Regional School Programming Contest 2014
474
529
2028
URCAPL, Episode 2
Ural Regional School Programming Contest 2014
289
856
2029
Towers of Hanoi Strike Back
Ural Regional School Programming Contest 2014
414
603
2030
Awesome Backup System
Ural Regional School Programming Contest 2014
497
505
2031
Overturned Numbers
Ural Regional School Programming Contest 2014
3003
85
2032
Conspiracy Theory and Rebranding
Ural Regional School Programming Contest 2014
321
773
2033
Devices
Ural Regional School Programming Contest 2014
2527
101
2034
Caravans
Ural Regional School Programming Contest 2014
890
284
2035
Another Dress Rehearsal
Ural Regional School Programming Contest 2014
3380
75
2062
Ambitious Experiment
Ural Regional School Programming Contest 2015
806
285
2063
Black and White
Ural Regional School Programming Contest 2015
539
423
2064
Caterpillars
Ural Regional School Programming Contest 2015
233
957
2065
Different Sums
Ural Regional School Programming Contest 2015
750
306
2066
Simple Expression
Ural Regional School Programming Contest 2015
8378
28
2067
Friends and Berries
Ural Regional School Programming Contest 2015
720
318
2068
Game of Nuts
Ural Regional School Programming Contest 2015
2211
105
2069
Hard Rock
Ural Regional School Programming Contest 2015
1062
217
2070
Interesting Numbers
Ural Regional School Programming Contest 2015
1012
227
2071
Juice Cocktails
Ural Regional School Programming Contest 2015
355
637
2072
Kirill the Gardener 3
Ural Regional School Programming Contest 2015
1131
204
2073
Log Files
Ural Regional School Programming Contest 2015
992
232
2111
Plato
University academic school olympiad in informatics 2019
2175
71
2112
Battle log
University academic school olympiad in informatics 2019
186
787
2113
Survive the flood
University academic school olympiad in informatics 2019
360
417
2114
My craft
University academic school olympiad in informatics 2019
146
989
2115
The Knowledge Day
University academic school olympiad in informatics 2019
695
219
2116
He is not a knight for you
University academic school olympiad in informatics 2019
173
843
2117
Polyphemus' triples
University academic school olympiad in informatics 2019
278
536
2138
The Good, the Bad and the Ugly
Ural School Programming Contest 2019
1319
107
2139
Experiment with Juice
Ural School Programming Contest 2019
22
4464
2140
BitMazeCraft
Ural School Programming Contest 2019
114
1152
2141
Sasha Vilkin
Ural School Programming Contest 2019
565
248
2142
Magic
Ural School Programming Contest 2019
1156
123
2143
Victoria!
Ural School Programming Contest 2019
207
658
2144
Cleaning the Room
Ural School Programming Contest 2019
640
220
2145
Olympiad for Everyone
Ural School Programming Contest 2019
370
376
2146
Quiz Show
Ural School Programming Contest 2019
207
658
2147
City Building
Ural School Programming Contest 2019
66
1880
2148
Insane Shot
Ural School Programming Contest 2019
285
484
2149
Pigeonhole Principle
Ural School Programming Contest 2019
967
146
2150
4B and Zoo
Ural School Programming Contest 2020
94
1121
2151
Mahjong
Ural School Programming Contest 2020
115
933
2152
Tax Fees
Ural School Programming Contest 2020
94
1121
2153
Perfect Squad
Ural School Programming Contest 2020
112
955
2154
Flight on a Cannonball
Ural School Programming Contest 2020
37
2480
2155
Quadrocopter
Ural School Programming Contest 2020
104
1023
2156
Interesting Conversations
Ural School Programming Contest 2020
173
637
2157
Skydiving
Ural School Programming Contest 2020
80
1295
2158
Two progressions
Ural School Programming Contest 2021
28
1763
2159
Essay
Ural School Programming Contest 2021
36
1459
2160
Meta-statement
Ural School Programming Contest 2021
47
1178
2161
Mount & Blade
Ural School Programming Contest 2021
79
754
2162
Graphmania
Ural School Programming Contest 2021
52
1081
2163
Interview
Ural School Programming Contest 2021
42
1289
2164
Bookmaker
Ural School Programming Contest 2021
28
1766
2165
Cake Cutter
Ural School Programming Contest 2021
26
1863
2166
Two Roads
Ural School Programming Contest 2022
19
2312
2167
Cipher Message 5
Ural School Programming Contest 2022
124
501
2168
Runes in the Field
Ural School Programming Contest 2022
10
3352
2169
City Building 2
Ural School Programming Contest 2022
23
2031
2170
Experiment with Juice 2
Ural School Programming Contest 2022
33
1559
2171
Two Progressions 2
Ural School Programming Contest 2022
37
1426
2172
Meta-statement 2
Ural School Programming Contest 2022
85
706
2173
Meta-statement 3
Ural School Programming Contest 2022
75
789
2174
Dualism of Numbers
Ural School Programming Contest 2023
35
865
2175
Staircase
Ural School Programming Contest 2023
20
1297
2176
Wonderful Numbers
Ural School Programming Contest 2023
26
1082
2177
Vadim and Sudoku: XV-Pairs
Ural School Programming Contest 2023
9
2048
2178
Vadim and Sudoku: Renban
Ural School Programming Contest 2023
8
2160
2179
Need More Roads
Ural School Programming Contest 2023
7
2286
2180
Need More Tasks
Ural School Programming Contest 2023
12
1768
2181
Student, or There and Back Again
Ural School Programming Contest 2023
10
1940
2182
Broken Rum
Ural School Programming Contest 2024
42
748
2183
Good Mood
Ural School Programming Contest 2024
40
778
2184
Flint's Favorite Number
Ural School Programming Contest 2024
16
1496
2185
Journey to the Treasure
Ural School Programming Contest 2024
5
2586
2186
Hands Up!
Ural School Programming Contest 2024
6
2424
2187
Need More Gold
Ural School Programming Contest 2024
12
1767
2188
They are charging the cannon... WHY?!
Ural School Programming Contest 2024
7
2289
2189
I Don't Like These Sailors!
Ural School Programming Contest 2024
24
1144
Solved problems:
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