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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
15710
100
1021
Sacrament of the Sum
Autumn School Contest 2000
10559
148
1022
Genealogical Tree
Autumn School Contest 2000
11030
142
1023
Buttons
Autumn School Contest 2000
7213
216
1024
Permutations
Autumn School Contest 2000
4874
320
1025
Democracy in Danger
Autumn School Contest 2000
23362
67
1026
Questions and Answers
Autumn School Contest 2000
10037
156
1027
D++ Again
Autumn School Contest 2000
2447
636
1082
Gaby Ivanushka
Spring School Contest 2001
10900
126
1083
Factorials!!!
Spring School Contest 2001
20203
68
1084
Goat in the Garden
Spring School Contest 2001
9154
150
1085
Meeting
Spring School Contest 2001
2182
627
1086
Cryptography
Spring School Contest 2001
12919
106
1087
The Time to Take Stones
Spring School Contest 2001
4955
277
1088
Ilya Murometz
Spring School Contest 2001
1825
748
1089
Verification with the Dictionary
Spring School Contest 2001
1625
840
1116
Piecewise Constant Function
Autumn School Contest 2001
1511
332
1117
Hierarchy
Autumn School Contest 2001
1799
279
1118
Nontrivial Numbers
Autumn School Contest 2001
4863
104
1119
Metro
Autumn School Contest 2001
7209
70
1120
Sum of Sequential Numbers
Autumn School Contest 2001
5825
86
1121
Branches
Autumn School Contest 2001
1422
352
1122
Game
Autumn School Contest 2001
2008
250
1123
Salary
Autumn School Contest 2001
4123
122
1190
Bar of Chocolate
Spring School Contest 2002
1477
341
1191
Catch the thief!
Spring School Contest 2002
2027
249
1192
Ball in a Dream
Spring School Contest 2002
4619
110
1193
Queue at the Exam
Spring School Contest 2002
2786
181
1194
Handshakes
Spring School Contest 2002
6081
83
1195
Ouths and Crosses
Spring School Contest 2002
1941
260
1196
History Exam
Spring School Contest 2002
9629
53
1197
Lonesome Knight
Spring School Contest 2002
18265
28
1209
1, 10, 100, 1000...
Autumn School Contest 2002
14941
34
1210
Kind Spirits
Autumn School Contest 2002
2996
170
1211
Collective Guarantee
Autumn School Contest 2002
1630
311
1212
Battleship
Autumn School Contest 2002
1027
493
1213
Cockroaches!
Autumn School Contest 2002
2978
171
1214
Strange Procedure
Autumn School Contest 2002
4983
102
1215
Exactness of Projectile Hit
Autumn School Contest 2002
1691
300
1257
Hyphenation
Autumn School Contest 2003
282
1770
1258
Pool
Autumn School Contest 2003
1227
418
1259
How to Become Star?
Autumn School Contest 2003
1294
396
1260
Nudnik Photographer
Autumn School Contest 2003
4638
111
1261
Tips
Autumn School Contest 2003
1556
330
1262
Pseudo-Roman Number
Autumn School Contest 2003
1310
392
1263
Elections
Autumn School Contest 2003
12150
43
1264
Workdays
Autumn School Contest 2003
24649
21
1290
Sabotage
Spring School Contest 2004
6469
80
1291
Gear-wheels
Spring School Contest 2004
1339
385
1292
Mars Space Stations
Spring School Contest 2004
1352
381
1293
Eniya
Spring School Contest 2004
35843
14
1294
Mars Satellites
Spring School Contest 2004
1630
317
1295
Crazy Notions
Spring School Contest 2004
3422
151
1296
Hyperjump
Spring School Contest 2004
8302
62
1297
Palindrome
Spring School Contest 2004
6314
82
1298
Knight
Spring School Contest 2004
2224
232
1299
Psylonians
Spring School Contest 2004
323
1559
1327
Fuses
Autumn School Contest 2004
11121
47
1328
Fireball
Autumn School Contest 2004
360
1412
1329
Galactic History
Autumn School Contest 2004
1126
460
1330
Intervals
Autumn School Contest 2004
5452
96
1331
Vladislava
Autumn School Contest 2004
515
995
1332
Genie Bomber
Autumn School Contest 2004
831
621
1333
Genie Bomber 2
Autumn School Contest 2004
2388
218
1334
Checkers
Autumn School Contest 2004
958
540
1335
White Thesis
Autumn School Contest 2004
2854
182
1336
Problem of Ben Betsalel
Autumn School Contest 2004
4248
123
1337
Bureaucracy
Autumn School Contest 2004
326
1555
1347
Blog
Spring School Contest 2005
370
1380
1348
Goat in the Garden 2
Spring School Contest 2005
2926
179
1349
Farm
Spring School Contest 2005
10319
51
1350
Canteen
Spring School Contest 2005
1336
390
1351
Good Gnusmas – Dead Gnusmas
Spring School Contest 2005
989
525
1352
Mersenne Primes
Spring School Contest 2005
3971
132
1353
Milliard Vasya's Function
Spring School Contest 2005
5065
103
1354
Palindrome. Again Palindrome
Spring School Contest 2005
3773
139
1355
Bald Spot Revisited
Spring School Contest 2005
2468
212
1356
Something Easier
Spring School Contest 2005
1752
298
1357
Teakettle 1.0 for Dummies
Spring School Contest 2005
430
1192
1358
Cables
Spring School Contest 2005
957
542
1359
Construction
Spring School Contest 2005
441
1163
1400
Cellular Characters
Autumn School Contest 2005
948
549
1401
Gamers
Autumn School Contest 2005
3124
168
1402
Cocktails
Autumn School Contest 2005
4037
130
1403
Courier
Autumn School Contest 2005
1488
351
1404
Easy to Hack!
Autumn School Contest 2005
6601
80
1405
Goat in the Garden 5
Autumn School Contest 2005
725
716
1406
Next Number
Autumn School Contest 2005
1508
347
1407
One-two, One-two
Autumn School Contest 2005
1350
387
1408
Polynomial Multiplication
Autumn School Contest 2005
425
1210
1409
Two Gangsters
Autumn School Contest 2005
34442
15
1489
Points on a Parallelepiped
Autumn School Contest 2006
1254
388
1490
Fire Circle
Autumn School Contest 2006
2494
196
1491
Unreal Story
Autumn School Contest 2006
2378
205
1492
Vasya's Dad 2
Autumn School Contest 2006
233
2017
1493
One Step from Happiness
Autumn School Contest 2006
10400
47
1494
Monobilliards
Autumn School Contest 2006
5244
93
1495
One-two, One-two 2
Autumn School Contest 2006
1430
340
1496
Spammer
Autumn School Contest 2006
10000
49
1497
Cutting a Square
Autumn School Contest 2006
1614
302
1498
Stroke at Full Speed
Autumn School Contest 2006
538
894
1499
Kerchiefs
Autumn School Contest 2006
321
1480
1572
Yekaterinozavodsk Great Well
Autumn School Contest 2007
3109
146
1573
Alchemy
Autumn School Contest 2007
4241
107
1574
Mathematicians and brackets
Autumn School Contest 2007
1270
356
1575
Yekaterinburg Subway 2
Autumn School Contest 2007
520
861
1576
Telephone Tariffs
Autumn School Contest 2007
3109
146
1577
E-mail
Autumn School Contest 2007
950
475
1578
Mammoth Hunt
Autumn School Contest 2007
506
884
1579
Coat Transportation
Autumn School Contest 2007
907
498
1580
Dean's Debts
Autumn School Contest 2007
497
900
1581
Teamwork
Autumn School Contest 2007
11313
40
1639
Chocolate 2
Autumn School Contest 2008
13103
32
1640
Circle of Winter
Autumn School Contest 2008
2387
177
1641
Duties
Autumn School Contest 2008
827
506
1642
1D Maze
Autumn School Contest 2008
4412
96
1643
Attack of the Dark Fortress
Autumn School Contest 2008
983
426
1644
A Whole Lot of Walnuts
Autumn School Contest 2008
4221
100
1645
Ski Race
Autumn School Contest 2008
2104
200
1646
Godzilla Strikes Back!
Autumn School Contest 2008
458
904
1647
Divide an Island!
Autumn School Contest 2008
497
835
1648
Yachts
Autumn School Contest 2008
1090
385
1722
Observation Deck
Ural Regional School Programming Contest 2009
281
1353
1723
Sandro's Book
Ural Regional School Programming Contest 2009
6338
62
1724
Origin of Man Clarified
Ural Regional School Programming Contest 2009
584
663
1725
Sold Out!
Ural Regional School Programming Contest 2009
2791
141
1726
Visits
Ural Regional School Programming Contest 2009
3126
126
1727
Znaika's Magic Numbers
Ural Regional School Programming Contest 2009
1962
200
1728
Curse on Team.GOV
Ural Regional School Programming Contest 2009
736
528
1729
Dead Man's Chest
Ural Regional School Programming Contest 2009
614
631
1730
ManBearPig
Ural Regional School Programming Contest 2009
334
1145
1731
Dill
Ural Regional School Programming Contest 2009
3758
105
1785
Lost in Localization
Ural Regional School Programming Contest 2010
22515
16
1786
Sandro's Biography
Ural Regional School Programming Contest 2010
3339
109
1787
Turn for MEGA
Ural Regional School Programming Contest 2010
14758
25
1788
On the Benefits of Umbrellas
Ural Regional School Programming Contest 2010
2265
160
1789
Searching for the Dodecahedron
Ural Regional School Programming Contest 2010
1665
218
1790
Searching for the Truth
Ural Regional School Programming Contest 2010
254
1383
1791
Uncle Styopa and Buses
Ural Regional School Programming Contest 2010
237
1478
1792
Hamming Code
Ural Regional School Programming Contest 2010
4384
83
1793
Tray 2
Ural Regional School Programming Contest 2010
910
397
1794
Masterpieces of World Architecture
Ural Regional School Programming Contest 2010
1845
197
1795
Husband in a Shop
Ural Regional School Programming Contest 2010
1450
250
1796
Amusement Park
Ural Regional School Programming Contest 2010
3327
109
1873
GOV Chronicles
Ural Regional School Programming Contest 2011
917
364
1874
Football Goal
Ural Regional School Programming Contest 2011
1707
196
1875
Angry Birds
Ural Regional School Programming Contest 2011
337
972
1876
Centipede's Morning
Ural Regional School Programming Contest 2011
6187
54
1877
Bicycle Codes
Ural Regional School Programming Contest 2011
17704
19
1878
Rubinchik's Cube
Ural Regional School Programming Contest 2011
1563
214
1879
GOV-internship 2
Ural Regional School Programming Contest 2011
220
1466
1880
Psych Up's Eigenvalues
Ural Regional School Programming Contest 2011
11199
30
1881
Long problem statement
Ural Regional School Programming Contest 2011
5519
61
1882
Old Nokia
Ural Regional School Programming Contest 2011
114
2719
1883
Ent's Birthday
Ural Regional School Programming Contest 2011
267
1217
1884
Way to the University
Ural Regional School Programming Contest 2011
495
668
1921
Chaos and Order
Ural Regional School Programming Contest 2012
237
1257
1922
Superhero Team
Ural Regional School Programming Contest 2012
972
316
1923
Scary Politics
Ural Regional School Programming Contest 2012
558
546
1924
Four Imps
Ural Regional School Programming Contest 2012
8089
38
1925
British Scientists Save the World
Ural Regional School Programming Contest 2012
4488
69
1926
The Tournament of Intelligences
Ural Regional School Programming Contest 2012
291
1031
1927
Herbs and Magic
Ural Regional School Programming Contest 2012
274
1093
1928
Another Ecology Problem
Ural Regional School Programming Contest 2012
388
780
1929
Teddybears are not for Everyone
Ural Regional School Programming Contest 2012
811
378
1930
Ivan's Car
Ural Regional School Programming Contest 2012
1862
166
2000
Grand Theft Array V
Ural Regional School Programming Contest 2013
1802
157
2001
Mathematicians and Berries
Ural Regional School Programming Contest 2013
13199
22
2002
Test Task
Ural Regional School Programming Contest 2013
4009
71
2003
Simple Magic
Ural Regional School Programming Contest 2013
778
361
2004
Scientists from Spilkovo
Ural Regional School Programming Contest 2013
363
762
2005
Taxi for Programmers
Ural Regional School Programming Contest 2013
3080
92
2006
Kirill the Gardener
Ural Regional School Programming Contest 2013
61
4001
2007
Mutants versus Machines
Ural Regional School Programming Contest 2013
135
1959
2008
Swifty
Ural Regional School Programming Contest 2013
248
1101
2009
Canteen Line
Ural Regional School Programming Contest 2013
326
845
2010
Sasha the Young Grandmaster
Ural Regional School Programming Contest 2013
2146
132
2011
Long Statement
Ural Regional School Programming Contest 2013
2781
102
2024
Adventure Time
Ural Regional School Programming Contest 2014
765
336
2025
Line Fighting
Ural Regional School Programming Contest 2014
4266
61
2026
Dean and Schedule
Ural Regional School Programming Contest 2014
429
594
2027
URCAPL, Episode 1
Ural Regional School Programming Contest 2014
477
535
2028
URCAPL, Episode 2
Ural Regional School Programming Contest 2014
289
871
2029
Towers of Hanoi Strike Back
Ural Regional School Programming Contest 2014
419
607
2030
Awesome Backup System
Ural Regional School Programming Contest 2014
500
511
2031
Overturned Numbers
Ural Regional School Programming Contest 2014
3015
86
2032
Conspiracy Theory and Rebranding
Ural Regional School Programming Contest 2014
322
785
2033
Devices
Ural Regional School Programming Contest 2014
2552
102
2034
Caravans
Ural Regional School Programming Contest 2014
903
285
2035
Another Dress Rehearsal
Ural Regional School Programming Contest 2014
3411
76
2062
Ambitious Experiment
Ural Regional School Programming Contest 2015
811
289
2063
Black and White
Ural Regional School Programming Contest 2015
550
424
2064
Caterpillars
Ural Regional School Programming Contest 2015
234
973
2065
Different Sums
Ural Regional School Programming Contest 2015
755
310
2066
Simple Expression
Ural Regional School Programming Contest 2015
8611
28
2067
Friends and Berries
Ural Regional School Programming Contest 2015
727
322
2068
Game of Nuts
Ural Regional School Programming Contest 2015
2224
106
2069
Hard Rock
Ural Regional School Programming Contest 2015
1066
221
2070
Interesting Numbers
Ural Regional School Programming Contest 2015
1015
232
2071
Juice Cocktails
Ural Regional School Programming Contest 2015
358
645
2072
Kirill the Gardener 3
Ural Regional School Programming Contest 2015
1145
205
2073
Log Files
Ural Regional School Programming Contest 2015
996
236
2111
Plato
University academic school olympiad in informatics 2019
2216
72
2112
Battle log
University academic school olympiad in informatics 2019
187
810
2113
Survive the flood
University academic school olympiad in informatics 2019
366
424
2114
My craft
University academic school olympiad in informatics 2019
148
1010
2115
The Knowledge Day
University academic school olympiad in informatics 2019
702
224
2116
He is not a knight for you
University academic school olympiad in informatics 2019
176
858
2117
Polyphemus' triples
University academic school olympiad in informatics 2019
286
539
2138
The Good, the Bad and the Ugly
Ural School Programming Contest 2019
1335
110
2139
Experiment with Juice
Ural School Programming Contest 2019
22
4634
2140
BitMazeCraft
Ural School Programming Contest 2019
114
1196
2141
Sasha Vilkin
Ural School Programming Contest 2019
581
251
2142
Magic
Ural School Programming Contest 2019
1175
125
2143
Victoria!
Ural School Programming Contest 2019
210
674
2144
Cleaning the Room
Ural School Programming Contest 2019
655
223
2145
Olympiad for Everyone
Ural School Programming Contest 2019
382
378
2146
Quiz Show
Ural School Programming Contest 2019
212
668
2147
City Building
Ural School Programming Contest 2019
66
1951
2148
Insane Shot
Ural School Programming Contest 2019
290
494
2149
Pigeonhole Principle
Ural School Programming Contest 2019
996
147
2150
4B and Zoo
Ural School Programming Contest 2020
94
1175
2151
Mahjong
Ural School Programming Contest 2020
118
955
2152
Tax Fees
Ural School Programming Contest 2020
95
1164
2153
Perfect Squad
Ural School Programming Contest 2020
113
993
2154
Flight on a Cannonball
Ural School Programming Contest 2020
37
2599
2155
Quadrocopter
Ural School Programming Contest 2020
105
1062
2156
Interesting Conversations
Ural School Programming Contest 2020
177
653
2157
Skydiving
Ural School Programming Contest 2020
83
1314
2158
Two progressions
Ural School Programming Contest 2021
28
1919
2159
Essay
Ural School Programming Contest 2021
37
1554
2160
Meta-statement
Ural School Programming Contest 2021
48
1259
2161
Mount & Blade
Ural School Programming Contest 2021
81
803
2162
Graphmania
Ural School Programming Contest 2021
54
1140
2163
Interview
Ural School Programming Contest 2021
46
1302
2164
Bookmaker
Ural School Programming Contest 2021
29
1873
2165
Cake Cutter
Ural School Programming Contest 2021
28
1921
2166
Two Roads
Ural School Programming Contest 2022
22
2280
2167
Cipher Message 5
Ural School Programming Contest 2022
137
497
2168
Runes in the Field
Ural School Programming Contest 2022
10
3648
2169
City Building 2
Ural School Programming Contest 2022
23
2211
2170
Experiment with Juice 2
Ural School Programming Contest 2022
36
1586
2171
Two Progressions 2
Ural School Programming Contest 2022
38
1520
2172
Meta-statement 2
Ural School Programming Contest 2022
92
716
2173
Meta-statement 3
Ural School Programming Contest 2022
77
839
2174
Dualism of Numbers
Ural School Programming Contest 2023
40
900
2175
Staircase
Ural School Programming Contest 2023
23
1364
2176
Wonderful Numbers
Ural School Programming Contest 2023
30
1126
2177
Vadim and Sudoku: XV-Pairs
Ural School Programming Contest 2023
12
2046
2178
Vadim and Sudoku: Renban
Ural School Programming Contest 2023
10
2249
2179
Need More Roads
Ural School Programming Contest 2023
8
2498
2180
Need More Tasks
Ural School Programming Contest 2023
15
1800
2181
Student, or There and Back Again
Ural School Programming Contest 2023
13
1952
2182
Broken Rum
Ural School Programming Contest 2024
53
715
2183
Good Mood
Ural School Programming Contest 2024
53
715
2184
Flint's Favorite Number
Ural School Programming Contest 2024
21
1451
2185
Journey to the Treasure
Ural School Programming Contest 2024
5
2993
2186
Hands Up!
Ural School Programming Contest 2024
6
2806
2187
Need More Gold
Ural School Programming Contest 2024
13
1956
2188
They are charging the cannon... WHY?!
Ural School Programming Contest 2024
7
2647
2189
I Don't Like These Sailors!
Ural School Programming Contest 2024
29
1154
Solved problems:
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