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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
15838
100
1021
Sacrament of the Sum
Autumn School Contest 2000
10670
148
1022
Genealogical Tree
Autumn School Contest 2000
11137
142
1023
Buttons
Autumn School Contest 2000
7255
218
1024
Permutations
Autumn School Contest 2000
4903
323
1025
Democracy in Danger
Autumn School Contest 2000
23582
67
1026
Questions and Answers
Autumn School Contest 2000
10130
156
1027
D++ Again
Autumn School Contest 2000
2464
641
1082
Gaby Ivanushka
Spring School Contest 2001
10943
127
1083
Factorials!!!
Spring School Contest 2001
20384
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
13035
107
1087
The Time to Take Stones
Spring School Contest 2001
5002
278
1088
Ilya Murometz
Spring School Contest 2001
1853
747
1089
Verification with the Dictionary
Spring School Contest 2001
1644
842
1116
Piecewise Constant Function
Autumn School Contest 2001
1523
333
1117
Hierarchy
Autumn School Contest 2001
1809
281
1118
Nontrivial Numbers
Autumn School Contest 2001
4935
103
1119
Metro
Autumn School Contest 2001
7297
70
1120
Sum of Sequential Numbers
Autumn School Contest 2001
5889
87
1121
Branches
Autumn School Contest 2001
1436
354
1122
Game
Autumn School Contest 2001
2028
251
1123
Salary
Autumn School Contest 2001
4168
122
1190
Bar of Chocolate
Spring School Contest 2002
1505
339
1191
Catch the thief!
Spring School Contest 2002
2053
249
1192
Ball in a Dream
Spring School Contest 2002
4675
110
1193
Queue at the Exam
Spring School Contest 2002
2829
181
1194
Handshakes
Spring School Contest 2002
6137
84
1195
Ouths and Crosses
Spring School Contest 2002
1962
261
1196
History Exam
Spring School Contest 2002
9796
52
1197
Lonesome Knight
Spring School Contest 2002
18501
28
1209
1, 10, 100, 1000...
Autumn School Contest 2002
15143
34
1210
Kind Spirits
Autumn School Contest 2002
3053
169
1211
Collective Guarantee
Autumn School Contest 2002
1652
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
1706
302
1257
Hyphenation
Autumn School Contest 2003
294
1722
1258
Pool
Autumn School Contest 2003
1245
417
1259
How to Become Star?
Autumn School Contest 2003
1307
398
1260
Nudnik Photographer
Autumn School Contest 2003
4684
112
1261
Tips
Autumn School Contest 2003
1581
329
1262
Pseudo-Roman Number
Autumn School Contest 2003
1332
390
1263
Elections
Autumn School Contest 2003
12323
42
1264
Workdays
Autumn School Contest 2003
25033
21
1290
Sabotage
Spring School Contest 2004
6527
80
1291
Gear-wheels
Spring School Contest 2004
1363
383
1292
Mars Space Stations
Spring School Contest 2004
1374
380
1293
Eniya
Spring School Contest 2004
36409
14
1294
Mars Satellites
Spring School Contest 2004
1644
318
1295
Crazy Notions
Spring School Contest 2004
3468
151
1296
Hyperjump
Spring School Contest 2004
8714
60
1297
Palindrome
Spring School Contest 2004
6388
82
1298
Knight
Spring School Contest 2004
2242
234
1299
Psylonians
Spring School Contest 2004
335
1524
1327
Fuses
Autumn School Contest 2004
11262
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
95
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
2994
177
1349
Farm
Spring School Contest 2005
10444
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
3827
138
1355
Bald Spot Revisited
Spring School Contest 2005
2494
212
1356
Something Easier
Spring School Contest 2005
1770
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
3343
159
1402
Cocktails
Autumn School Contest 2005
4087
130
1403
Courier
Autumn School Contest 2005
1515
349
1404
Easy to Hack!
Autumn School Contest 2005
6676
80
1405
Goat in the Garden 5
Autumn School Contest 2005
741
709
1406
Next Number
Autumn School Contest 2005
1537
344
1407
One-two, One-two
Autumn School Contest 2005
1363
388
1408
Polynomial Multiplication
Autumn School Contest 2005
440
1184
1409
Two Gangsters
Autumn School Contest 2005
34980
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
2438
203
1492
Vasya's Dad 2
Autumn School Contest 2006
240
1988
1493
One Step from Happiness
Autumn School Contest 2006
10538
47
1494
Monobilliards
Autumn School Contest 2006
5520
90
1495
One-two, One-two 2
Autumn School Contest 2006
1453
340
1496
Spammer
Autumn School Contest 2006
10147
49
1497
Cutting a Square
Autumn School Contest 2006
1627
304
1498
Stroke at Full Speed
Autumn School Contest 2006
554
881
1499
Kerchiefs
Autumn School Contest 2006
327
1475
1572
Yekaterinozavodsk Great Well
Autumn School Contest 2007
3176
146
1573
Alchemy
Autumn School Contest 2007
4289
108
1574
Mathematicians and brackets
Autumn School Contest 2007
1303
353
1575
Yekaterinburg Subway 2
Autumn School Contest 2007
529
860
1576
Telephone Tariffs
Autumn School Contest 2007
3143
147
1577
E-mail
Autumn School Contest 2007
978
469
1578
Mammoth Hunt
Autumn School Contest 2007
519
877
1579
Coat Transportation
Autumn School Contest 2007
918
500
1580
Dean's Debts
Autumn School Contest 2007
518
878
1581
Teamwork
Autumn School Contest 2007
11420
41
1639
Chocolate 2
Autumn School Contest 2008
13268
32
1640
Circle of Winter
Autumn School Contest 2008
2409
178
1641
Duties
Autumn School Contest 2008
834
511
1642
1D Maze
Autumn School Contest 2008
4461
96
1643
Attack of the Dark Fortress
Autumn School Contest 2008
1004
425
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
1354
1723
Sandro's Book
Ural Regional School Programming Contest 2009
6438
62
1724
Origin of Man Clarified
Ural Regional School Programming Contest 2009
600
659
1725
Sold Out!
Ural Regional School Programming Contest 2009
2827
142
1726
Visits
Ural Regional School Programming Contest 2009
3350
120
1727
Znaika's Magic Numbers
Ural Regional School Programming Contest 2009
1986
201
1728
Curse on Team.GOV
Ural Regional School Programming Contest 2009
757
524
1729
Dead Man's Chest
Ural Regional School Programming Contest 2009
629
629
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
22923
16
1786
Sandro's Biography
Ural Regional School Programming Contest 2010
3393
110
1787
Turn for MEGA
Ural Regional School Programming Contest 2010
14999
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
1335
1791
Uncle Styopa and Buses
Ural Regional School Programming Contest 2010
244
1472
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
1888
197
1795
Husband in a Shop
Ural Regional School Programming Contest 2010
1466
253
1796
Amusement Park
Ural Regional School Programming Contest 2010
3373
111
1873
GOV Chronicles
Ural Regional School Programming Contest 2011
938
365
1874
Football Goal
Ural Regional School Programming Contest 2011
1727
199
1875
Angry Birds
Ural Regional School Programming Contest 2011
349
965
1876
Centipede's Morning
Ural Regional School Programming Contest 2011
6280
55
1877
Bicycle Codes
Ural Regional School Programming Contest 2011
18080
19
1878
Rubinchik's Cube
Ural Regional School Programming Contest 2011
1574
219
1879
GOV-internship 2
Ural Regional School Programming Contest 2011
228
1455
1880
Psych Up's Eigenvalues
Ural Regional School Programming Contest 2011
11384
30
1881
Long problem statement
Ural Regional School Programming Contest 2011
5574
62
1882
Old Nokia
Ural Regional School Programming Contest 2011
124
2585
1883
Ent's Birthday
Ural Regional School Programming Contest 2011
275
1215
1884
Way to the University
Ural Regional School Programming Contest 2011
503
675
1921
Chaos and Order
Ural Regional School Programming Contest 2012
244
1259
1922
Superhero Team
Ural Regional School Programming Contest 2012
983
322
1923
Scary Politics
Ural Regional School Programming Contest 2012
577
545
1924
Four Imps
Ural Regional School Programming Contest 2012
8205
39
1925
British Scientists Save the World
Ural Regional School Programming Contest 2012
4559
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
1059
1928
Another Ecology Problem
Ural Regional School Programming Contest 2012
406
769
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
1831
160
2001
Mathematicians and Berries
Ural Regional School Programming Contest 2013
13605
22
2002
Test Task
Ural Regional School Programming Contest 2013
4080
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
3134
94
2006
Kirill the Gardener
Ural Regional School Programming Contest 2013
70
3675
2007
Mutants versus Machines
Ural Regional School Programming Contest 2013
143
1921
2008
Swifty
Ural Regional School Programming Contest 2013
273
1039
2009
Canteen Line
Ural Regional School Programming Contest 2013
343
833
2010
Sasha the Young Grandmaster
Ural Regional School Programming Contest 2013
2200
133
2011
Long Statement
Ural Regional School Programming Contest 2013
2837
103
2024
Adventure Time
Ural Regional School Programming Contest 2014
787
340
2025
Line Fighting
Ural Regional School Programming Contest 2014
4506
60
2026
Dean and Schedule
Ural Regional School Programming Contest 2014
446
594
2027
URCAPL, Episode 1
Ural Regional School Programming Contest 2014
491
541
2028
URCAPL, Episode 2
Ural Regional School Programming Contest 2014
298
879
2029
Towers of Hanoi Strike Back
Ural Regional School Programming Contest 2014
441
600
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
787
2033
Devices
Ural Regional School Programming Contest 2014
2607
103
2034
Caravans
Ural Regional School Programming Contest 2014
946
283
2035
Another Dress Rehearsal
Ural Regional School Programming Contest 2014
3468
78
2062
Ambitious Experiment
Ural Regional School Programming Contest 2015
829
295
2063
Black and White
Ural Regional School Programming Contest 2015
564
432
2064
Caterpillars
Ural Regional School Programming Contest 2015
244
976
2065
Different Sums
Ural Regional School Programming Contest 2015
768
319
2066
Simple Expression
Ural Regional School Programming Contest 2015
8844
28
2067
Friends and Berries
Ural Regional School Programming Contest 2015
750
326
2068
Game of Nuts
Ural Regional School Programming Contest 2015
2276
108
2069
Hard Rock
Ural Regional School Programming Contest 2015
1086
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
1190
207
2073
Log Files
Ural Regional School Programming Contest 2015
1015
242
2111
Plato
University-Academy Olympiad 2019
2310
74
2112
Battle log
University-Academy Olympiad 2019
201
812
2113
Survive the flood
University-Academy Olympiad 2019
387
431
2114
My craft
University-Academy Olympiad 2019
164
984
2115
The Knowledge Day
University-Academy Olympiad 2019
741
228
2116
He is not a knight for you
University-Academy Olympiad 2019
187
869
2117
Polyphemus' triples
University-Academy Olympiad 2019
305
544
2138
The Good, the Bad and the Ugly
Ural School Programming Contest 2019
1437
111
2139
Experiment with Juice
Ural School Programming Contest 2019
34
3638
2140
BitMazeCraft
Ural School Programming Contest 2019
132
1127
2141
Sasha Vilkin
Ural School Programming Contest 2019
623
253
2142
Magic
Ural School Programming Contest 2019
1249
127
2143
Victoria!
Ural School Programming Contest 2019
231
664
2144
Cleaning the Room
Ural School Programming Contest 2019
715
221
2145
Olympiad for Everyone
Ural School Programming Contest 2019
417
375
2146
Quiz Show
Ural School Programming Contest 2019
240
640
2147
City Building
Ural School Programming Contest 2019
81
1759
2148
Insane Shot
Ural School Programming Contest 2019
316
491
2149
Pigeonhole Principle
Ural School Programming Contest 2019
1071
148
2150
4B and Zoo
Ural School Programming Contest 2020
108
1138
2151
Mahjong
Ural School Programming Contest 2020
146
861
2152
Tax Fees
Ural School Programming Contest 2020
107
1148
2153
Perfect Squad
Ural School Programming Contest 2020
134
933
2154
Flight on a Cannonball
Ural School Programming Contest 2020
48
2316
2155
Quadrocopter
Ural School Programming Contest 2020
131
953
2156
Interesting Conversations
Ural School Programming Contest 2020
195
655
2157
Skydiving
Ural School Programming Contest 2020
95
1279
2158
Two progressions
Ural School Programming Contest 2021
40
1715
2159
Essay
Ural School Programming Contest 2021
56
1301
2160
Meta-statement
Ural School Programming Contest 2021
67
1115
2161
Mount & Blade
Ural School Programming Contest 2021
104
753
2162
Graphmania
Ural School Programming Contest 2021
69
1086
2163
Interview
Ural School Programming Contest 2021
66
1128
2164
Bookmaker
Ural School Programming Contest 2021
44
1590
2165
Cake Cutter
Ural School Programming Contest 2021
43
1619
2166
Two Roads
Ural School Programming Contest 2022
36
1865
2167
Cipher Message 5
Ural School Programming Contest 2022
160
505
2168
Runes in the Field
Ural School Programming Contest 2022
19
2958
2169
City Building 2
Ural School Programming Contest 2022
39
1751
2170
Experiment with Juice 2
Ural School Programming Contest 2022
51
1406
2171
Two Progressions 2
Ural School Programming Contest 2022
52
1384
2172
Meta-statement 2
Ural School Programming Contest 2022
103
760
2173
Meta-statement 3
Ural School Programming Contest 2022
93
833
2174
Dualism of Numbers
Ural School Programming Contest 2023
56
882
2175
Staircase
Ural School Programming Contest 2023
48
1004
2176
Wonderful Numbers
Ural School Programming Contest 2023
46
1040
2177
Vadim and Sudoku: XV-Pairs
Ural School Programming Contest 2023
37
1239
2178
Vadim and Sudoku: Renban
Ural School Programming Contest 2023
30
1455
2179
Need More Roads
Ural School Programming Contest 2023
28
1531
2180
Need More Tasks
Ural School Programming Contest 2023
35
1294
2181
Student, or There and Back Again
Ural School Programming Contest 2023
36
1263
2182
Broken Rum
Ural School Programming Contest 2024
78
662
2183
Good Mood
Ural School Programming Contest 2024
74
693
2184
Flint's Favorite Number
Ural School Programming Contest 2024
38
1213
2185
Journey to the Treasure
Ural School Programming Contest 2024
18
2075
2186
Hands Up!
Ural School Programming Contest 2024
23
1761
2187
Need More Gold
Ural School Programming Contest 2024
33
1353
2188
They are charging the cannon... WHY?!
Ural School Programming Contest 2024
23
1764
2189
I Don't Like These Sailors!
Ural School Programming Contest 2024
45
1059
2200
He is not a knight for you 2
University-Academy Olympiad 2020
29
981
2201
Esports Tournament
University-Academy Olympiad 2020
25
1093
2202
Gorodki and Robots
University-Academy Olympiad 2020
21
1234
2203
Favorite Sandwiches
University-Academy Olympiad 2020
25
1093
2204
Friends and Exams
University-Academy Olympiad 2022
50
637
2205
Natural Numbers
University-Academy Olympiad 2022
37
814
2206
Runes in the Field 2
University-Academy Olympiad 2022
26
1062
2207
Catansonnes
University-Academy Olympiad 2022
20
1275
2208
Two Gifts
University-Academy Olympiad 2023
31
932
2209
Stern-Brocot Tree
University-Academy Olympiad 2023
49
648
2210
Tycoon Simulator
University-Academy Olympiad 2023
23
1156
2211
Integer Triangles
University-Academy Olympiad 2023
24
1125
2212
Prefossum
University-Academy Olympiad 2024
27
1032
2213
A Small Fix
University-Academy Olympiad 2024
20
1273
2214
Quality Emitter
University-Academy Olympiad 2024
20
1273
2215
Global Changes
University-Academy Olympiad 2024
20
1273
Solved problems:
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