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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
15841
100
1021
Sacrament of the Sum
Autumn School Contest 2000
10669
149
1022
Genealogical Tree
Autumn School Contest 2000
11142
142
1023
Buttons
Autumn School Contest 2000
7255
218
1024
Permutations
Autumn School Contest 2000
4907
323
1025
Democracy in Danger
Autumn School Contest 2000
23589
67
1026
Questions and Answers
Autumn School Contest 2000
10132
156
1027
D++ Again
Autumn School Contest 2000
2466
640
1082
Gaby Ivanushka
Spring School Contest 2001
10945
127
1083
Factorials!!!
Spring School Contest 2001
20390
68
1084
Goat in the Garden
Spring School Contest 2001
9241
151
1085
Meeting
Spring School Contest 2001
2203
629
1086
Cryptography
Spring School Contest 2001
13040
107
1087
The Time to Take Stones
Spring School Contest 2001
5005
278
1088
Ilya Murometz
Spring School Contest 2001
1853
748
1089
Verification with the Dictionary
Spring School Contest 2001
1644
842
1116
Piecewise Constant Function
Autumn School Contest 2001
1525
333
1117
Hierarchy
Autumn School Contest 2001
1811
281
1118
Nontrivial Numbers
Autumn School Contest 2001
4938
103
1119
Metro
Autumn School Contest 2001
7300
70
1120
Sum of Sequential Numbers
Autumn School Contest 2001
5890
87
1121
Branches
Autumn School Contest 2001
1437
353
1122
Game
Autumn School Contest 2001
2028
251
1123
Salary
Autumn School Contest 2001
4168
122
1190
Bar of Chocolate
Spring School Contest 2002
1509
338
1191
Catch the thief!
Spring School Contest 2002
2057
249
1192
Ball in a Dream
Spring School Contest 2002
4677
110
1193
Queue at the Exam
Spring School Contest 2002
2829
181
1194
Handshakes
Spring School Contest 2002
6136
84
1195
Ouths and Crosses
Spring School Contest 2002
1965
260
1196
History Exam
Spring School Contest 2002
9898
52
1197
Lonesome Knight
Spring School Contest 2002
18503
28
1209
1, 10, 100, 1000...
Autumn School Contest 2002
15145
34
1210
Kind Spirits
Autumn School Contest 2002
3053
169
1211
Collective Guarantee
Autumn School Contest 2002
1657
311
1212
Battleship
Autumn School Contest 2002
1040
493
1213
Cockroaches!
Autumn School Contest 2002
3033
170
1214
Strange Procedure
Autumn School Contest 2002
5034
103
1215
Exactness of Projectile Hit
Autumn School Contest 2002
1707
302
1257
Hyphenation
Autumn School Contest 2003
294
1723
1258
Pool
Autumn School Contest 2003
1245
417
1259
How to Become Star?
Autumn School Contest 2003
1309
397
1260
Nudnik Photographer
Autumn School Contest 2003
4684
112
1261
Tips
Autumn School Contest 2003
1583
329
1262
Pseudo-Roman Number
Autumn School Contest 2003
1333
390
1263
Elections
Autumn School Contest 2003
12327
42
1264
Workdays
Autumn School Contest 2003
25037
21
1290
Sabotage
Spring School Contest 2004
6529
80
1291
Gear-wheels
Spring School Contest 2004
1363
383
1292
Mars Space Stations
Spring School Contest 2004
1376
380
1293
Eniya
Spring School Contest 2004
36415
14
1294
Mars Satellites
Spring School Contest 2004
1649
317
1295
Crazy Notions
Spring School Contest 2004
3468
151
1296
Hyperjump
Spring School Contest 2004
8727
60
1297
Palindrome
Spring School Contest 2004
6404
82
1298
Knight
Spring School Contest 2004
2242
234
1299
Psylonians
Spring School Contest 2004
335
1525
1327
Fuses
Autumn School Contest 2004
11269
47
1328
Fireball
Autumn School Contest 2004
368
1400
1329
Galactic History
Autumn School Contest 2004
1158
453
1330
Intervals
Autumn School Contest 2004
5531
96
1331
Vladislava
Autumn School Contest 2004
530
980
1332
Genie Bomber
Autumn School Contest 2004
855
612
1333
Genie Bomber 2
Autumn School Contest 2004
2409
219
1334
Checkers
Autumn School Contest 2004
968
541
1335
White Thesis
Autumn School Contest 2004
2892
182
1336
Problem of Ben Betsalel
Autumn School Contest 2004
4306
123
1337
Bureaucracy
Autumn School Contest 2004
337
1525
1347
Blog
Spring School Contest 2005
380
1362
1348
Goat in the Garden 2
Spring School Contest 2005
2995
177
1349
Farm
Spring School Contest 2005
10448
51
1350
Canteen
Spring School Contest 2005
1373
384
1351
Good Gnusmas – Dead Gnusmas
Spring School Contest 2005
1015
518
1352
Mersenne Primes
Spring School Contest 2005
4014
132
1353
Milliard Vasya's Function
Spring School Contest 2005
5139
103
1354
Palindrome. Again Palindrome
Spring School Contest 2005
3828
138
1355
Bald Spot Revisited
Spring School Contest 2005
2494
212
1356
Something Easier
Spring School Contest 2005
1772
298
1357
Teakettle 1.0 for Dummies
Spring School Contest 2005
440
1180
1358
Cables
Spring School Contest 2005
974
540
1359
Construction
Spring School Contest 2005
447
1162
1400
Cellular Characters
Autumn School Contest 2005
960
549
1401
Gamers
Autumn School Contest 2005
3345
159
1402
Cocktails
Autumn School Contest 2005
4087
130
1403
Courier
Autumn School Contest 2005
1516
349
1404
Easy to Hack!
Autumn School Contest 2005
6685
80
1405
Goat in the Garden 5
Autumn School Contest 2005
741
710
1406
Next Number
Autumn School Contest 2005
1538
344
1407
One-two, One-two
Autumn School Contest 2005
1364
388
1408
Polynomial Multiplication
Autumn School Contest 2005
440
1184
1409
Two Gangsters
Autumn School Contest 2005
34988
15
1489
Points on a Parallelepiped
Autumn School Contest 2006
1286
384
1490
Fire Circle
Autumn School Contest 2006
2530
196
1491
Unreal Story
Autumn School Contest 2006
2440
203
1492
Vasya's Dad 2
Autumn School Contest 2006
240
1989
1493
One Step from Happiness
Autumn School Contest 2006
10545
47
1494
Monobilliards
Autumn School Contest 2006
5522
90
1495
One-two, One-two 2
Autumn School Contest 2006
1455
339
1496
Spammer
Autumn School Contest 2006
10157
49
1497
Cutting a Square
Autumn School Contest 2006
1628
304
1498
Stroke at Full Speed
Autumn School Contest 2006
554
882
1499
Kerchiefs
Autumn School Contest 2006
327
1476
1572
Yekaterinozavodsk Great Well
Autumn School Contest 2007
3179
145
1573
Alchemy
Autumn School Contest 2007
4289
108
1574
Mathematicians and brackets
Autumn School Contest 2007
1305
353
1575
Yekaterinburg Subway 2
Autumn School Contest 2007
529
861
1576
Telephone Tariffs
Autumn School Contest 2007
3146
147
1577
E-mail
Autumn School Contest 2007
978
470
1578
Mammoth Hunt
Autumn School Contest 2007
520
875
1579
Coat Transportation
Autumn School Contest 2007
919
499
1580
Dean's Debts
Autumn School Contest 2007
518
879
1581
Teamwork
Autumn School Contest 2007
11424
41
1639
Chocolate 2
Autumn School Contest 2008
13270
32
1640
Circle of Winter
Autumn School Contest 2008
2410
178
1641
Duties
Autumn School Contest 2008
834
511
1642
1D Maze
Autumn School Contest 2008
4462
96
1643
Attack of the Dark Fortress
Autumn School Contest 2008
1004
426
1644
A Whole Lot of Walnuts
Autumn School Contest 2008
4291
100
1645
Ski Race
Autumn School Contest 2008
2143
200
1646
Godzilla Strikes Back!
Autumn School Contest 2008
477
886
1647
Divide an Island!
Autumn School Contest 2008
508
833
1648
Yachts
Autumn School Contest 2008
1105
387
1722
Observation Deck
Ural Regional School Programming Contest 2009
287
1355
1723
Sandro's Book
Ural Regional School Programming Contest 2009
6440
62
1724
Origin of Man Clarified
Ural Regional School Programming Contest 2009
601
659
1725
Sold Out!
Ural Regional School Programming Contest 2009
2828
142
1726
Visits
Ural Regional School Programming Contest 2009
3350
120
1727
Znaika's Magic Numbers
Ural Regional School Programming Contest 2009
1986
202
1728
Curse on Team.GOV
Ural Regional School Programming Contest 2009
757
525
1729
Dead Man's Chest
Ural Regional School Programming Contest 2009
629
630
1730
ManBearPig
Ural Regional School Programming Contest 2009
341
1146
1731
Dill
Ural Regional School Programming Contest 2009
3797
106
1785
Lost in Localization
Ural Regional School Programming Contest 2010
22926
16
1786
Sandro's Biography
Ural Regional School Programming Contest 2010
3393
110
1787
Turn for MEGA
Ural Regional School Programming Contest 2010
15001
25
1788
On the Benefits of Umbrellas
Ural Regional School Programming Contest 2010
2298
162
1789
Searching for the Dodecahedron
Ural Regional School Programming Contest 2010
1688
220
1790
Searching for the Truth
Ural Regional School Programming Contest 2010
270
1336
1791
Uncle Styopa and Buses
Ural Regional School Programming Contest 2010
244
1473
1792
Hamming Code
Ural Regional School Programming Contest 2010
4429
84
1793
Tray 2
Ural Regional School Programming Contest 2010
918
403
1794
Masterpieces of World Architecture
Ural Regional School Programming Contest 2010
1890
197
1795
Husband in a Shop
Ural Regional School Programming Contest 2010
1469
253
1796
Amusement Park
Ural Regional School Programming Contest 2010
3373
111
1873
GOV Chronicles
Ural Regional School Programming Contest 2011
939
365
1874
Football Goal
Ural Regional School Programming Contest 2011
1728
199
1875
Angry Birds
Ural Regional School Programming Contest 2011
349
965
1876
Centipede's Morning
Ural Regional School Programming Contest 2011
6287
55
1877
Bicycle Codes
Ural Regional School Programming Contest 2011
18087
19
1878
Rubinchik's Cube
Ural Regional School Programming Contest 2011
1575
219
1879
GOV-internship 2
Ural Regional School Programming Contest 2011
228
1456
1880
Psych Up's Eigenvalues
Ural Regional School Programming Contest 2011
11391
30
1881
Long problem statement
Ural Regional School Programming Contest 2011
5576
62
1882
Old Nokia
Ural Regional School Programming Contest 2011
124
2587
1883
Ent's Birthday
Ural Regional School Programming Contest 2011
276
1212
1884
Way to the University
Ural Regional School Programming Contest 2011
503
676
1921
Chaos and Order
Ural Regional School Programming Contest 2012
244
1261
1922
Superhero Team
Ural Regional School Programming Contest 2012
988
321
1923
Scary Politics
Ural Regional School Programming Contest 2012
577
545
1924
Four Imps
Ural Regional School Programming Contest 2012
8207
39
1925
British Scientists Save the World
Ural Regional School Programming Contest 2012
4561
70
1926
The Tournament of Intelligences
Ural Regional School Programming Contest 2012
311
997
1927
Herbs and Magic
Ural Regional School Programming Contest 2012
292
1060
1928
Another Ecology Problem
Ural Regional School Programming Contest 2012
406
770
1929
Teddybears are not for Everyone
Ural Regional School Programming Contest 2012
821
385
1930
Ivan's Car
Ural Regional School Programming Contest 2012
1964
162
2000
Grand Theft Array V
Ural Regional School Programming Contest 2013
1832
160
2001
Mathematicians and Berries
Ural Regional School Programming Contest 2013
13609
22
2002
Test Task
Ural Regional School Programming Contest 2013
4081
72
2003
Simple Magic
Ural Regional School Programming Contest 2013
794
366
2004
Scientists from Spilkovo
Ural Regional School Programming Contest 2013
376
762
2005
Taxi for Programmers
Ural Regional School Programming Contest 2013
3135
94
2006
Kirill the Gardener
Ural Regional School Programming Contest 2013
70
3678
2007
Mutants versus Machines
Ural Regional School Programming Contest 2013
143
1923
2008
Swifty
Ural Regional School Programming Contest 2013
273
1040
2009
Canteen Line
Ural Regional School Programming Contest 2013
343
834
2010
Sasha the Young Grandmaster
Ural Regional School Programming Contest 2013
2201
133
2011
Long Statement
Ural Regional School Programming Contest 2013
2837
103
2024
Adventure Time
Ural Regional School Programming Contest 2014
790
339
2025
Line Fighting
Ural Regional School Programming Contest 2014
4510
60
2026
Dean and Schedule
Ural Regional School Programming Contest 2014
446
595
2027
URCAPL, Episode 1
Ural Regional School Programming Contest 2014
491
541
2028
URCAPL, Episode 2
Ural Regional School Programming Contest 2014
298
880
2029
Towers of Hanoi Strike Back
Ural Regional School Programming Contest 2014
441
601
2030
Awesome Backup System
Ural Regional School Programming Contest 2014
514
517
2031
Overturned Numbers
Ural Regional School Programming Contest 2014
3063
88
2032
Conspiracy Theory and Rebranding
Ural Regional School Programming Contest 2014
334
788
2033
Devices
Ural Regional School Programming Contest 2014
2607
104
2034
Caravans
Ural Regional School Programming Contest 2014
950
282
2035
Another Dress Rehearsal
Ural Regional School Programming Contest 2014
3469
78
2062
Ambitious Experiment
Ural Regional School Programming Contest 2015
829
296
2063
Black and White
Ural Regional School Programming Contest 2015
564
432
2064
Caterpillars
Ural Regional School Programming Contest 2015
244
977
2065
Different Sums
Ural Regional School Programming Contest 2015
769
319
2066
Simple Expression
Ural Regional School Programming Contest 2015
8847
28
2067
Friends and Berries
Ural Regional School Programming Contest 2015
753
325
2068
Game of Nuts
Ural Regional School Programming Contest 2015
2278
108
2069
Hard Rock
Ural Regional School Programming Contest 2015
1087
226
2070
Interesting Numbers
Ural Regional School Programming Contest 2015
1047
235
2071
Juice Cocktails
Ural Regional School Programming Contest 2015
377
641
2072
Kirill the Gardener 3
Ural Regional School Programming Contest 2015
1192
206
2073
Log Files
Ural Regional School Programming Contest 2015
1016
242
2111
Plato
University-Academy Olympiad 2019
2314
74
2112
Battle log
University-Academy Olympiad 2019
201
813
2113
Survive the flood
University-Academy Olympiad 2019
387
432
2114
My craft
University-Academy Olympiad 2019
164
986
2115
The Knowledge Day
University-Academy Olympiad 2019
741
228
2116
He is not a knight for you
University-Academy Olympiad 2019
187
871
2117
Polyphemus' triples
University-Academy Olympiad 2019
305
545
2138
The Good, the Bad and the Ugly
Ural School Programming Contest 2019
1438
111
2139
Experiment with Juice
Ural School Programming Contest 2019
34
3645
2140
BitMazeCraft
Ural School Programming Contest 2019
132
1130
2141
Sasha Vilkin
Ural School Programming Contest 2019
627
252
2142
Magic
Ural School Programming Contest 2019
1253
127
2143
Victoria!
Ural School Programming Contest 2019
231
666
2144
Cleaning the Room
Ural School Programming Contest 2019
715
221
2145
Olympiad for Everyone
Ural School Programming Contest 2019
418
375
2146
Quiz Show
Ural School Programming Contest 2019
241
639
2147
City Building
Ural School Programming Contest 2019
81
1763
2148
Insane Shot
Ural School Programming Contest 2019
317
491
2149
Pigeonhole Principle
Ural School Programming Contest 2019
1074
148
2150
4B and Zoo
Ural School Programming Contest 2020
108
1141
2151
Mahjong
Ural School Programming Contest 2020
146
863
2152
Tax Fees
Ural School Programming Contest 2020
107
1151
2153
Perfect Squad
Ural School Programming Contest 2020
134
935
2154
Flight on a Cannonball
Ural School Programming Contest 2020
48
2322
2155
Quadrocopter
Ural School Programming Contest 2020
131
955
2156
Interesting Conversations
Ural School Programming Contest 2020
195
657
2157
Skydiving
Ural School Programming Contest 2020
95
1283
2158
Two progressions
Ural School Programming Contest 2021
40
1722
2159
Essay
Ural School Programming Contest 2021
56
1307
2160
Meta-statement
Ural School Programming Contest 2021
67
1120
2161
Mount & Blade
Ural School Programming Contest 2021
106
743
2162
Graphmania
Ural School Programming Contest 2021
69
1090
2163
Interview
Ural School Programming Contest 2021
67
1118
2164
Bookmaker
Ural School Programming Contest 2021
44
1597
2165
Cake Cutter
Ural School Programming Contest 2021
43
1626
2166
Two Roads
Ural School Programming Contest 2022
36
1873
2167
Cipher Message 5
Ural School Programming Contest 2022
161
504
2168
Runes in the Field
Ural School Programming Contest 2022
19
2971
2169
City Building 2
Ural School Programming Contest 2022
39
1758
2170
Experiment with Juice 2
Ural School Programming Contest 2022
51
1412
2171
Two Progressions 2
Ural School Programming Contest 2022
52
1390
2172
Meta-statement 2
Ural School Programming Contest 2022
103
763
2173
Meta-statement 3
Ural School Programming Contest 2022
93
837
2174
Dualism of Numbers
Ural School Programming Contest 2023
56
888
2175
Staircase
Ural School Programming Contest 2023
48
1010
2176
Wonderful Numbers
Ural School Programming Contest 2023
46
1047
2177
Vadim and Sudoku: XV-Pairs
Ural School Programming Contest 2023
37
1247
2178
Vadim and Sudoku: Renban
Ural School Programming Contest 2023
30
1464
2179
Need More Roads
Ural School Programming Contest 2023
29
1501
2180
Need More Tasks
Ural School Programming Contest 2023
35
1302
2181
Student, or There and Back Again
Ural School Programming Contest 2023
36
1272
2182
Broken Rum
Ural School Programming Contest 2024
78
666
2183
Good Mood
Ural School Programming Contest 2024
75
689
2184
Flint's Favorite Number
Ural School Programming Contest 2024
38
1220
2185
Journey to the Treasure
Ural School Programming Contest 2024
18
2089
2186
Hands Up!
Ural School Programming Contest 2024
23
1772
2187
Need More Gold
Ural School Programming Contest 2024
33
1362
2188
They are charging the cannon... WHY?!
Ural School Programming Contest 2024
23
1776
2189
I Don't Like These Sailors!
Ural School Programming Contest 2024
45
1065
2200
He is not a knight for you 2
University-Academy Olympiad 2020
29
990
2201
Esports Tournament
University-Academy Olympiad 2020
26
1073
2202
Gorodki and Robots
University-Academy Olympiad 2020
22
1207
2203
Favorite Sandwiches
University-Academy Olympiad 2020
25
1104
2204
Friends and Exams
University-Academy Olympiad 2022
51
633
2205
Natural Numbers
University-Academy Olympiad 2022
37
823
2206
Runes in the Field 2
University-Academy Olympiad 2022
26
1073
2207
Catansonnes
University-Academy Olympiad 2022
20
1287
2208
Two Gifts
University-Academy Olympiad 2023
31
941
2209
Stern-Brocot Tree
University-Academy Olympiad 2023
49
655
2210
Tycoon Simulator
University-Academy Olympiad 2023
23
1168
2211
Integer Triangles
University-Academy Olympiad 2023
24
1136
2212
Prefossum
University-Academy Olympiad 2024
29
989
2213
A Small Fix
University-Academy Olympiad 2024
20
1286
2214
Quality Emitter
University-Academy Olympiad 2024
20
1286
2215
Global Changes
University-Academy Olympiad 2024
20
1286
Solved problems:
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