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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
15832
100
1021
Sacrament of the Sum
Autumn School Contest 2000
10668
148
1022
Genealogical Tree
Autumn School Contest 2000
11132
142
1023
Buttons
Autumn School Contest 2000
7250
218
1024
Permutations
Autumn School Contest 2000
4902
323
1025
Democracy in Danger
Autumn School Contest 2000
23575
67
1026
Questions and Answers
Autumn School Contest 2000
10127
156
1027
D++ Again
Autumn School Contest 2000
2462
641
1082
Gaby Ivanushka
Spring School Contest 2001
10942
127
1083
Factorials!!!
Spring School Contest 2001
20376
68
1084
Goat in the Garden
Spring School Contest 2001
9238
150
1085
Meeting
Spring School Contest 2001
2202
629
1086
Cryptography
Spring School Contest 2001
13023
107
1087
The Time to Take Stones
Spring School Contest 2001
5001
278
1088
Ilya Murometz
Spring School Contest 2001
1853
747
1089
Verification with the Dictionary
Spring School Contest 2001
1643
842
1116
Piecewise Constant Function
Autumn School Contest 2001
1522
333
1117
Hierarchy
Autumn School Contest 2001
1806
281
1118
Nontrivial Numbers
Autumn School Contest 2001
4920
104
1119
Metro
Autumn School Contest 2001
7294
70
1120
Sum of Sequential Numbers
Autumn School Contest 2001
5888
87
1121
Branches
Autumn School Contest 2001
1436
353
1122
Game
Autumn School Contest 2001
2025
251
1123
Salary
Autumn School Contest 2001
4168
122
1190
Bar of Chocolate
Spring School Contest 2002
1504
339
1191
Catch the thief!
Spring School Contest 2002
2050
249
1192
Ball in a Dream
Spring School Contest 2002
4675
110
1193
Queue at the Exam
Spring School Contest 2002
2813
182
1194
Handshakes
Spring School Contest 2002
6137
84
1195
Ouths and Crosses
Spring School Contest 2002
1960
261
1196
History Exam
Spring School Contest 2002
9777
52
1197
Lonesome Knight
Spring School Contest 2002
18486
28
1209
1, 10, 100, 1000...
Autumn School Contest 2002
15121
34
1210
Kind Spirits
Autumn School Contest 2002
3051
169
1211
Collective Guarantee
Autumn School Contest 2002
1651
311
1212
Battleship
Autumn School Contest 2002
1038
494
1213
Cockroaches!
Autumn School Contest 2002
3030
170
1214
Strange Procedure
Autumn School Contest 2002
5031
103
1215
Exactness of Projectile Hit
Autumn School Contest 2002
1705
302
1257
Hyphenation
Autumn School Contest 2003
293
1727
1258
Pool
Autumn School Contest 2003
1244
417
1259
How to Become Star?
Autumn School Contest 2003
1306
398
1260
Nudnik Photographer
Autumn School Contest 2003
4682
112
1261
Tips
Autumn School Contest 2003
1580
329
1262
Pseudo-Roman Number
Autumn School Contest 2003
1330
390
1263
Elections
Autumn School Contest 2003
12313
42
1264
Workdays
Autumn School Contest 2003
24890
21
1290
Sabotage
Spring School Contest 2004
6524
80
1291
Gear-wheels
Spring School Contest 2004
1362
383
1292
Mars Space Stations
Spring School Contest 2004
1373
380
1293
Eniya
Spring School Contest 2004
36389
14
1294
Mars Satellites
Spring School Contest 2004
1643
318
1295
Crazy Notions
Spring School Contest 2004
3466
151
1296
Hyperjump
Spring School Contest 2004
8682
60
1297
Palindrome
Spring School Contest 2004
6385
82
1298
Knight
Spring School Contest 2004
2236
234
1299
Psylonians
Spring School Contest 2004
335
1524
1327
Fuses
Autumn School Contest 2004
11246
47
1328
Fireball
Autumn School Contest 2004
367
1403
1329
Galactic History
Autumn School Contest 2004
1157
453
1330
Intervals
Autumn School Contest 2004
5520
96
1331
Vladislava
Autumn School Contest 2004
529
981
1332
Genie Bomber
Autumn School Contest 2004
854
612
1333
Genie Bomber 2
Autumn School Contest 2004
2403
219
1334
Checkers
Autumn School Contest 2004
967
541
1335
White Thesis
Autumn School Contest 2004
2888
182
1336
Problem of Ben Betsalel
Autumn School Contest 2004
4305
123
1337
Bureaucracy
Autumn School Contest 2004
336
1528
1347
Blog
Spring School Contest 2005
379
1364
1348
Goat in the Garden 2
Spring School Contest 2005
2991
177
1349
Farm
Spring School Contest 2005
10435
51
1350
Canteen
Spring School Contest 2005
1372
384
1351
Good Gnusmas – Dead Gnusmas
Spring School Contest 2005
1014
518
1352
Mersenne Primes
Spring School Contest 2005
4013
132
1353
Milliard Vasya's Function
Spring School Contest 2005
5136
103
1354
Palindrome. Again Palindrome
Spring School Contest 2005
3824
138
1355
Bald Spot Revisited
Spring School Contest 2005
2489
212
1356
Something Easier
Spring School Contest 2005
1769
298
1357
Teakettle 1.0 for Dummies
Spring School Contest 2005
439
1182
1358
Cables
Spring School Contest 2005
973
540
1359
Construction
Spring School Contest 2005
446
1164
1400
Cellular Characters
Autumn School Contest 2005
959
549
1401
Gamers
Autumn School Contest 2005
3341
159
1402
Cocktails
Autumn School Contest 2005
4086
130
1403
Courier
Autumn School Contest 2005
1512
350
1404
Easy to Hack!
Autumn School Contest 2005
6673
80
1405
Goat in the Garden 5
Autumn School Contest 2005
740
710
1406
Next Number
Autumn School Contest 2005
1534
345
1407
One-two, One-two
Autumn School Contest 2005
1362
388
1408
Polynomial Multiplication
Autumn School Contest 2005
439
1186
1409
Two Gangsters
Autumn School Contest 2005
34958
15
1489
Points on a Parallelepiped
Autumn School Contest 2006
1285
384
1490
Fire Circle
Autumn School Contest 2006
2524
196
1491
Unreal Story
Autumn School Contest 2006
2411
205
1492
Vasya's Dad 2
Autumn School Contest 2006
239
1995
1493
One Step from Happiness
Autumn School Contest 2006
10522
47
1494
Monobilliards
Autumn School Contest 2006
5518
90
1495
One-two, One-two 2
Autumn School Contest 2006
1453
340
1496
Spammer
Autumn School Contest 2006
10137
49
1497
Cutting a Square
Autumn School Contest 2006
1626
304
1498
Stroke at Full Speed
Autumn School Contest 2006
552
884
1499
Kerchiefs
Autumn School Contest 2006
327
1474
1572
Yekaterinozavodsk Great Well
Autumn School Contest 2007
3173
146
1573
Alchemy
Autumn School Contest 2007
4286
108
1574
Mathematicians and brackets
Autumn School Contest 2007
1297
355
1575
Yekaterinburg Subway 2
Autumn School Contest 2007
527
863
1576
Telephone Tariffs
Autumn School Contest 2007
3142
147
1577
E-mail
Autumn School Contest 2007
977
470
1578
Mammoth Hunt
Autumn School Contest 2007
516
881
1579
Coat Transportation
Autumn School Contest 2007
916
500
1580
Dean's Debts
Autumn School Contest 2007
516
881
1581
Teamwork
Autumn School Contest 2007
11410
41
1639
Chocolate 2
Autumn School Contest 2008
13254
32
1640
Circle of Winter
Autumn School Contest 2008
2405
178
1641
Duties
Autumn School Contest 2008
833
511
1642
1D Maze
Autumn School Contest 2008
4459
96
1643
Attack of the Dark Fortress
Autumn School Contest 2008
1002
426
1644
A Whole Lot of Walnuts
Autumn School Contest 2008
4288
100
1645
Ski Race
Autumn School Contest 2008
2131
201
1646
Godzilla Strikes Back!
Autumn School Contest 2008
476
887
1647
Divide an Island!
Autumn School Contest 2008
507
833
1648
Yachts
Autumn School Contest 2008
1104
387
1722
Observation Deck
Ural Regional School Programming Contest 2009
286
1357
1723
Sandro's Book
Ural Regional School Programming Contest 2009
6418
63
1724
Origin of Man Clarified
Ural Regional School Programming Contest 2009
599
660
1725
Sold Out!
Ural Regional School Programming Contest 2009
2826
142
1726
Visits
Ural Regional School Programming Contest 2009
3349
120
1727
Znaika's Magic Numbers
Ural Regional School Programming Contest 2009
1981
202
1728
Curse on Team.GOV
Ural Regional School Programming Contest 2009
756
525
1729
Dead Man's Chest
Ural Regional School Programming Contest 2009
628
630
1730
ManBearPig
Ural Regional School Programming Contest 2009
340
1148
1731
Dill
Ural Regional School Programming Contest 2009
3794
106
1785
Lost in Localization
Ural Regional School Programming Contest 2010
22915
16
1786
Sandro's Biography
Ural Regional School Programming Contest 2010
3390
110
1787
Turn for MEGA
Ural Regional School Programming Contest 2010
14979
25
1788
On the Benefits of Umbrellas
Ural Regional School Programming Contest 2010
2295
162
1789
Searching for the Dodecahedron
Ural Regional School Programming Contest 2010
1682
221
1790
Searching for the Truth
Ural Regional School Programming Contest 2010
270
1334
1791
Uncle Styopa and Buses
Ural Regional School Programming Contest 2010
244
1471
1792
Hamming Code
Ural Regional School Programming Contest 2010
4428
84
1793
Tray 2
Ural Regional School Programming Contest 2010
917
403
1794
Masterpieces of World Architecture
Ural Regional School Programming Contest 2010
1882
197
1795
Husband in a Shop
Ural Regional School Programming Contest 2010
1463
254
1796
Amusement Park
Ural Regional School Programming Contest 2010
3371
110
1873
GOV Chronicles
Ural Regional School Programming Contest 2011
937
365
1874
Football Goal
Ural Regional School Programming Contest 2011
1721
200
1875
Angry Birds
Ural Regional School Programming Contest 2011
348
966
1876
Centipede's Morning
Ural Regional School Programming Contest 2011
6277
55
1877
Bicycle Codes
Ural Regional School Programming Contest 2011
17989
19
1878
Rubinchik's Cube
Ural Regional School Programming Contest 2011
1573
219
1879
GOV-internship 2
Ural Regional School Programming Contest 2011
226
1466
1880
Psych Up's Eigenvalues
Ural Regional School Programming Contest 2011
11367
30
1881
Long problem statement
Ural Regional School Programming Contest 2011
5573
62
1882
Old Nokia
Ural Regional School Programming Contest 2011
123
2601
1883
Ent's Birthday
Ural Regional School Programming Contest 2011
274
1218
1884
Way to the University
Ural Regional School Programming Contest 2011
502
676
1921
Chaos and Order
Ural Regional School Programming Contest 2012
243
1263
1922
Superhero Team
Ural Regional School Programming Contest 2012
982
322
1923
Scary Politics
Ural Regional School Programming Contest 2012
576
545
1924
Four Imps
Ural Regional School Programming Contest 2012
8189
39
1925
British Scientists Save the World
Ural Regional School Programming Contest 2012
4545
70
1926
The Tournament of Intelligences
Ural Regional School Programming Contest 2012
309
1002
1927
Herbs and Magic
Ural Regional School Programming Contest 2012
290
1065
1928
Another Ecology Problem
Ural Regional School Programming Contest 2012
405
770
1929
Teddybears are not for Everyone
Ural Regional School Programming Contest 2012
821
384
1930
Ivan's Car
Ural Regional School Programming Contest 2012
1960
162
2000
Grand Theft Array V
Ural Regional School Programming Contest 2013
1827
160
2001
Mathematicians and Berries
Ural Regional School Programming Contest 2013
13474
22
2002
Test Task
Ural Regional School Programming Contest 2013
4080
72
2003
Simple Magic
Ural Regional School Programming Contest 2013
793
366
2004
Scientists from Spilkovo
Ural Regional School Programming Contest 2013
375
762
2005
Taxi for Programmers
Ural Regional School Programming Contest 2013
3133
93
2006
Kirill the Gardener
Ural Regional School Programming Contest 2013
70
3669
2007
Mutants versus Machines
Ural Regional School Programming Contest 2013
142
1931
2008
Swifty
Ural Regional School Programming Contest 2013
272
1041
2009
Canteen Line
Ural Regional School Programming Contest 2013
342
834
2010
Sasha the Young Grandmaster
Ural Regional School Programming Contest 2013
2200
133
2011
Long Statement
Ural Regional School Programming Contest 2013
2835
103
2024
Adventure Time
Ural Regional School Programming Contest 2014
786
340
2025
Line Fighting
Ural Regional School Programming Contest 2014
4504
60
2026
Dean and Schedule
Ural Regional School Programming Contest 2014
445
594
2027
URCAPL, Episode 1
Ural Regional School Programming Contest 2014
490
541
2028
URCAPL, Episode 2
Ural Regional School Programming Contest 2014
296
883
2029
Towers of Hanoi Strike Back
Ural Regional School Programming Contest 2014
440
601
2030
Awesome Backup System
Ural Regional School Programming Contest 2014
513
517
2031
Overturned Numbers
Ural Regional School Programming Contest 2014
3062
88
2032
Conspiracy Theory and Rebranding
Ural Regional School Programming Contest 2014
333
788
2033
Devices
Ural Regional School Programming Contest 2014
2605
103
2034
Caravans
Ural Regional School Programming Contest 2014
944
283
2035
Another Dress Rehearsal
Ural Regional School Programming Contest 2014
3463
78
2062
Ambitious Experiment
Ural Regional School Programming Contest 2015
828
295
2063
Black and White
Ural Regional School Programming Contest 2015
563
432
2064
Caterpillars
Ural Regional School Programming Contest 2015
243
978
2065
Different Sums
Ural Regional School Programming Contest 2015
766
319
2066
Simple Expression
Ural Regional School Programming Contest 2015
8823
28
2067
Friends and Berries
Ural Regional School Programming Contest 2015
750
326
2068
Game of Nuts
Ural Regional School Programming Contest 2015
2273
108
2069
Hard Rock
Ural Regional School Programming Contest 2015
1081
227
2070
Interesting Numbers
Ural Regional School Programming Contest 2015
1042
235
2071
Juice Cocktails
Ural Regional School Programming Contest 2015
376
641
2072
Kirill the Gardener 3
Ural Regional School Programming Contest 2015
1186
207
2073
Log Files
Ural Regional School Programming Contest 2015
1010
243
2111
Plato
University-Academy Olympiad 2019
2306
74
2112
Battle log
University-Academy Olympiad 2019
201
809
2113
Survive the flood
University-Academy Olympiad 2019
387
430
2114
My craft
University-Academy Olympiad 2019
164
981
2115
The Knowledge Day
University-Academy Olympiad 2019
736
229
2116
He is not a knight for you
University-Academy Olympiad 2019
187
867
2117
Polyphemus' triples
University-Academy Olympiad 2019
304
544
2138
The Good, the Bad and the Ugly
Ural School Programming Contest 2019
1435
110
2139
Experiment with Juice
Ural School Programming Contest 2019
34
3626
2140
BitMazeCraft
Ural School Programming Contest 2019
132
1124
2141
Sasha Vilkin
Ural School Programming Contest 2019
622
252
2142
Magic
Ural School Programming Contest 2019
1246
127
2143
Victoria!
Ural School Programming Contest 2019
230
665
2144
Cleaning the Room
Ural School Programming Contest 2019
708
222
2145
Olympiad for Everyone
Ural School Programming Contest 2019
413
377
2146
Quiz Show
Ural School Programming Contest 2019
240
638
2147
City Building
Ural School Programming Contest 2019
81
1753
2148
Insane Shot
Ural School Programming Contest 2019
313
494
2149
Pigeonhole Principle
Ural School Programming Contest 2019
1069
148
2150
4B and Zoo
Ural School Programming Contest 2020
108
1134
2151
Mahjong
Ural School Programming Contest 2020
144
869
2152
Tax Fees
Ural School Programming Contest 2020
106
1153
2153
Perfect Squad
Ural School Programming Contest 2020
134
929
2154
Flight on a Cannonball
Ural School Programming Contest 2020
48
2307
2155
Quadrocopter
Ural School Programming Contest 2020
130
956
2156
Interesting Conversations
Ural School Programming Contest 2020
195
653
2157
Skydiving
Ural School Programming Contest 2020
95
1274
2158
Two progressions
Ural School Programming Contest 2021
39
1738
2159
Essay
Ural School Programming Contest 2021
56
1292
2160
Meta-statement
Ural School Programming Contest 2021
66
1122
2161
Mount & Blade
Ural School Programming Contest 2021
104
748
2162
Graphmania
Ural School Programming Contest 2021
69
1079
2163
Interview
Ural School Programming Contest 2021
65
1136
2164
Bookmaker
Ural School Programming Contest 2021
44
1579
2165
Cake Cutter
Ural School Programming Contest 2021
43
1608
2166
Two Roads
Ural School Programming Contest 2022
36
1852
2167
Cipher Message 5
Ural School Programming Contest 2022
160
502
2168
Runes in the Field
Ural School Programming Contest 2022
18
3043
2169
City Building 2
Ural School Programming Contest 2022
39
1739
2170
Experiment with Juice 2
Ural School Programming Contest 2022
51
1397
2171
Two Progressions 2
Ural School Programming Contest 2022
52
1374
2172
Meta-statement 2
Ural School Programming Contest 2022
102
761
2173
Meta-statement 3
Ural School Programming Contest 2022
93
828
2174
Dualism of Numbers
Ural School Programming Contest 2023
55
887
2175
Staircase
Ural School Programming Contest 2023
47
1011
2176
Wonderful Numbers
Ural School Programming Contest 2023
45
1048
2177
Vadim and Sudoku: XV-Pairs
Ural School Programming Contest 2023
37
1226
2178
Vadim and Sudoku: Renban
Ural School Programming Contest 2023
30
1440
2179
Need More Roads
Ural School Programming Contest 2023
28
1516
2180
Need More Tasks
Ural School Programming Contest 2023
35
1280
2181
Student, or There and Back Again
Ural School Programming Contest 2023
35
1278
2182
Broken Rum
Ural School Programming Contest 2024
78
655
2183
Good Mood
Ural School Programming Contest 2024
73
694
2184
Flint's Favorite Number
Ural School Programming Contest 2024
37
1226
2185
Journey to the Treasure
Ural School Programming Contest 2024
18
2054
2186
Hands Up!
Ural School Programming Contest 2024
23
1743
2187
Need More Gold
Ural School Programming Contest 2024
33
1340
2188
They are charging the cannon... WHY?!
Ural School Programming Contest 2024
23
1746
2189
I Don't Like These Sailors!
Ural School Programming Contest 2024
43
1087
2200
He is not a knight for you 2
University-Academy Olympiad 2020
29
965
2201
Esports Tournament
University-Academy Olympiad 2020
23
1141
2202
Gorodki and Robots
University-Academy Olympiad 2020
21
1214
2203
Favorite Sandwiches
University-Academy Olympiad 2020
24
1107
2204
Friends and Exams
University-Academy Olympiad 2022
50
627
2205
Natural Numbers
University-Academy Olympiad 2022
37
802
2206
Runes in the Field 2
University-Academy Olympiad 2022
24
1107
2207
Catansonnes
University-Academy Olympiad 2022
20
1255
2208
Two Gifts
University-Academy Olympiad 2023
31
917
2209
Stern-Brocot Tree
University-Academy Olympiad 2023
49
638
2210
Tycoon Simulator
University-Academy Olympiad 2023
23
1138
2211
Integer Triangles
University-Academy Olympiad 2023
24
1107
2212
Prefossum
University-Academy Olympiad 2024
27
1016
2213
A Small Fix
University-Academy Olympiad 2024
20
1253
2214
Quality Emitter
University-Academy Olympiad 2024
20
1253
2215
Global Changes
University-Academy Olympiad 2024
20
1253
Solved problems:
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