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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
15718
100
1021
Sacrament of the Sum
Autumn School Contest 2000
10562
148
1022
Genealogical Tree
Autumn School Contest 2000
11035
142
1023
Buttons
Autumn School Contest 2000
7217
217
1024
Permutations
Autumn School Contest 2000
4874
321
1025
Democracy in Danger
Autumn School Contest 2000
23376
67
1026
Questions and Answers
Autumn School Contest 2000
10038
156
1027
D++ Again
Autumn School Contest 2000
2448
637
1082
Gaby Ivanushka
Spring School Contest 2001
10904
126
1083
Factorials!!!
Spring School Contest 2001
20221
68
1084
Goat in the Garden
Spring School Contest 2001
9156
150
1085
Meeting
Spring School Contest 2001
2183
627
1086
Cryptography
Spring School Contest 2001
12924
106
1087
The Time to Take Stones
Spring School Contest 2001
4957
277
1088
Ilya Murometz
Spring School Contest 2001
1825
749
1089
Verification with the Dictionary
Spring School Contest 2001
1626
841
1116
Piecewise Constant Function
Autumn School Contest 2001
1512
332
1117
Hierarchy
Autumn School Contest 2001
1799
279
1118
Nontrivial Numbers
Autumn School Contest 2001
4869
103
1119
Metro
Autumn School Contest 2001
7214
70
1120
Sum of Sequential Numbers
Autumn School Contest 2001
5833
86
1121
Branches
Autumn School Contest 2001
1424
352
1122
Game
Autumn School Contest 2001
2009
250
1123
Salary
Autumn School Contest 2001
4125
122
1190
Bar of Chocolate
Spring School Contest 2002
1478
341
1191
Catch the thief!
Spring School Contest 2002
2030
249
1192
Ball in a Dream
Spring School Contest 2002
4621
110
1193
Queue at the Exam
Spring School Contest 2002
2786
182
1194
Handshakes
Spring School Contest 2002
6084
83
1195
Ouths and Crosses
Spring School Contest 2002
1941
260
1196
History Exam
Spring School Contest 2002
9636
53
1197
Lonesome Knight
Spring School Contest 2002
18292
28
1209
1, 10, 100, 1000...
Autumn School Contest 2002
14962
34
1210
Kind Spirits
Autumn School Contest 2002
2999
170
1211
Collective Guarantee
Autumn School Contest 2002
1630
312
1212
Battleship
Autumn School Contest 2002
1027
493
1213
Cockroaches!
Autumn School Contest 2002
2980
171
1214
Strange Procedure
Autumn School Contest 2002
4985
102
1215
Exactness of Projectile Hit
Autumn School Contest 2002
1691
301
1257
Hyphenation
Autumn School Contest 2003
283
1766
1258
Pool
Autumn School Contest 2003
1228
418
1259
How to Become Star?
Autumn School Contest 2003
1294
397
1260
Nudnik Photographer
Autumn School Contest 2003
4644
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
12159
43
1264
Workdays
Autumn School Contest 2003
24671
21
1290
Sabotage
Spring School Contest 2004
6472
80
1291
Gear-wheels
Spring School Contest 2004
1340
385
1292
Mars Space Stations
Spring School Contest 2004
1353
381
1293
Eniya
Spring School Contest 2004
35873
14
1294
Mars Satellites
Spring School Contest 2004
1630
317
1295
Crazy Notions
Spring School Contest 2004
3423
151
1296
Hyperjump
Spring School Contest 2004
8305
63
1297
Palindrome
Spring School Contest 2004
6318
82
1298
Knight
Spring School Contest 2004
2224
233
1299
Psylonians
Spring School Contest 2004
324
1556
1327
Fuses
Autumn School Contest 2004
11134
47
1328
Fireball
Autumn School Contest 2004
360
1414
1329
Galactic History
Autumn School Contest 2004
1126
460
1330
Intervals
Autumn School Contest 2004
5456
96
1331
Vladislava
Autumn School Contest 2004
515
996
1332
Genie Bomber
Autumn School Contest 2004
833
620
1333
Genie Bomber 2
Autumn School Contest 2004
2389
218
1334
Checkers
Autumn School Contest 2004
958
540
1335
White Thesis
Autumn School Contest 2004
2854
183
1336
Problem of Ben Betsalel
Autumn School Contest 2004
4250
123
1337
Bureaucracy
Autumn School Contest 2004
328
1547
1347
Blog
Spring School Contest 2005
372
1374
1348
Goat in the Garden 2
Spring School Contest 2005
2926
179
1349
Farm
Spring School Contest 2005
10328
51
1350
Canteen
Spring School Contest 2005
1336
390
1351
Good Gnusmas – Dead Gnusmas
Spring School Contest 2005
989
526
1352
Mersenne Primes
Spring School Contest 2005
3971
132
1353
Milliard Vasya's Function
Spring School Contest 2005
5076
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
1193
1358
Cables
Spring School Contest 2005
962
540
1359
Construction
Spring School Contest 2005
441
1164
1400
Cellular Characters
Autumn School Contest 2005
950
549
1401
Gamers
Autumn School Contest 2005
3124
168
1402
Cocktails
Autumn School Contest 2005
4037
130
1403
Courier
Autumn School Contest 2005
1489
351
1404
Easy to Hack!
Autumn School Contest 2005
6603
80
1405
Goat in the Garden 5
Autumn School Contest 2005
725
717
1406
Next Number
Autumn School Contest 2005
1508
347
1407
One-two, One-two
Autumn School Contest 2005
1351
387
1408
Polynomial Multiplication
Autumn School Contest 2005
425
1211
1409
Two Gangsters
Autumn School Contest 2005
34478
15
1489
Points on a Parallelepiped
Autumn School Contest 2006
1254
388
1490
Fire Circle
Autumn School Contest 2006
2495
196
1491
Unreal Story
Autumn School Contest 2006
2378
205
1492
Vasya's Dad 2
Autumn School Contest 2006
233
2019
1493
One Step from Happiness
Autumn School Contest 2006
10412
47
1494
Monobilliards
Autumn School Contest 2006
5246
93
1495
One-two, One-two 2
Autumn School Contest 2006
1432
340
1496
Spammer
Autumn School Contest 2006
10013
49
1497
Cutting a Square
Autumn School Contest 2006
1614
302
1498
Stroke at Full Speed
Autumn School Contest 2006
538
895
1499
Kerchiefs
Autumn School Contest 2006
322
1478
1572
Yekaterinozavodsk Great Well
Autumn School Contest 2007
3109
146
1573
Alchemy
Autumn School Contest 2007
4247
107
1574
Mathematicians and brackets
Autumn School Contest 2007
1271
357
1575
Yekaterinburg Subway 2
Autumn School Contest 2007
520
862
1576
Telephone Tariffs
Autumn School Contest 2007
3110
146
1577
E-mail
Autumn School Contest 2007
952
475
1578
Mammoth Hunt
Autumn School Contest 2007
506
885
1579
Coat Transportation
Autumn School Contest 2007
907
498
1580
Dean's Debts
Autumn School Contest 2007
498
899
1581
Teamwork
Autumn School Contest 2007
11329
40
1639
Chocolate 2
Autumn School Contest 2008
13122
32
1640
Circle of Winter
Autumn School Contest 2008
2388
177
1641
Duties
Autumn School Contest 2008
827
507
1642
1D Maze
Autumn School Contest 2008
4415
96
1643
Attack of the Dark Fortress
Autumn School Contest 2008
983
427
1644
A Whole Lot of Walnuts
Autumn School Contest 2008
4222
100
1645
Ski Race
Autumn School Contest 2008
2104
201
1646
Godzilla Strikes Back!
Autumn School Contest 2008
458
906
1647
Divide an Island!
Autumn School Contest 2008
497
836
1648
Yachts
Autumn School Contest 2008
1090
385
1722
Observation Deck
Ural Regional School Programming Contest 2009
281
1356
1723
Sandro's Book
Ural Regional School Programming Contest 2009
6343
62
1724
Origin of Man Clarified
Ural Regional School Programming Contest 2009
584
664
1725
Sold Out!
Ural Regional School Programming Contest 2009
2791
141
1726
Visits
Ural Regional School Programming Contest 2009
3127
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
737
528
1729
Dead Man's Chest
Ural Regional School Programming Contest 2009
616
630
1730
ManBearPig
Ural Regional School Programming Contest 2009
334
1147
1731
Dill
Ural Regional School Programming Contest 2009
3761
105
1785
Lost in Localization
Ural Regional School Programming Contest 2010
22539
16
1786
Sandro's Biography
Ural Regional School Programming Contest 2010
3341
109
1787
Turn for MEGA
Ural Regional School Programming Contest 2010
14781
25
1788
On the Benefits of Umbrellas
Ural Regional School Programming Contest 2010
2265
161
1789
Searching for the Dodecahedron
Ural Regional School Programming Contest 2010
1665
218
1790
Searching for the Truth
Ural Regional School Programming Contest 2010
256
1375
1791
Uncle Styopa and Buses
Ural Regional School Programming Contest 2010
238
1475
1792
Hamming Code
Ural Regional School Programming Contest 2010
4384
83
1793
Tray 2
Ural Regional School Programming Contest 2010
910
398
1794
Masterpieces of World Architecture
Ural Regional School Programming Contest 2010
1846
197
1795
Husband in a Shop
Ural Regional School Programming Contest 2010
1450
251
1796
Amusement Park
Ural Regional School Programming Contest 2010
3328
110
1873
GOV Chronicles
Ural Regional School Programming Contest 2011
917
365
1874
Football Goal
Ural Regional School Programming Contest 2011
1707
197
1875
Angry Birds
Ural Regional School Programming Contest 2011
338
971
1876
Centipede's Morning
Ural Regional School Programming Contest 2011
6193
54
1877
Bicycle Codes
Ural Regional School Programming Contest 2011
17728
19
1878
Rubinchik's Cube
Ural Regional School Programming Contest 2011
1563
215
1879
GOV-internship 2
Ural Regional School Programming Contest 2011
220
1469
1880
Psych Up's Eigenvalues
Ural Regional School Programming Contest 2011
11218
30
1881
Long problem statement
Ural Regional School Programming Contest 2011
5525
61
1882
Old Nokia
Ural Regional School Programming Contest 2011
114
2726
1883
Ent's Birthday
Ural Regional School Programming Contest 2011
267
1220
1884
Way to the University
Ural Regional School Programming Contest 2011
496
668
1921
Chaos and Order
Ural Regional School Programming Contest 2012
237
1260
1922
Superhero Team
Ural Regional School Programming Contest 2012
972
317
1923
Scary Politics
Ural Regional School Programming Contest 2012
559
547
1924
Four Imps
Ural Regional School Programming Contest 2012
8100
38
1925
British Scientists Save the World
Ural Regional School Programming Contest 2012
4493
69
1926
The Tournament of Intelligences
Ural Regional School Programming Contest 2012
292
1030
1927
Herbs and Magic
Ural Regional School Programming Contest 2012
275
1092
1928
Another Ecology Problem
Ural Regional School Programming Contest 2012
388
782
1929
Teddybears are not for Everyone
Ural Regional School Programming Contest 2012
811
379
1930
Ivan's Car
Ural Regional School Programming Contest 2012
1869
166
2000
Grand Theft Array V
Ural Regional School Programming Contest 2013
1802
157
2001
Mathematicians and Berries
Ural Regional School Programming Contest 2013
13224
22
2002
Test Task
Ural Regional School Programming Contest 2013
4016
71
2003
Simple Magic
Ural Regional School Programming Contest 2013
778
362
2004
Scientists from Spilkovo
Ural Regional School Programming Contest 2013
365
760
2005
Taxi for Programmers
Ural Regional School Programming Contest 2013
3083
92
2006
Kirill the Gardener
Ural Regional School Programming Contest 2013
61
4013
2007
Mutants versus Machines
Ural Regional School Programming Contest 2013
135
1965
2008
Swifty
Ural Regional School Programming Contest 2013
251
1092
2009
Canteen Line
Ural Regional School Programming Contest 2013
326
848
2010
Sasha the Young Grandmaster
Ural Regional School Programming Contest 2013
2146
132
2011
Long Statement
Ural Regional School Programming Contest 2013
2784
102
2024
Adventure Time
Ural Regional School Programming Contest 2014
766
337
2025
Line Fighting
Ural Regional School Programming Contest 2014
4268
61
2026
Dean and Schedule
Ural Regional School Programming Contest 2014
432
592
2027
URCAPL, Episode 1
Ural Regional School Programming Contest 2014
478
536
2028
URCAPL, Episode 2
Ural Regional School Programming Contest 2014
289
874
2029
Towers of Hanoi Strike Back
Ural Regional School Programming Contest 2014
420
608
2030
Awesome Backup System
Ural Regional School Programming Contest 2014
500
513
2031
Overturned Numbers
Ural Regional School Programming Contest 2014
3018
86
2032
Conspiracy Theory and Rebranding
Ural Regional School Programming Contest 2014
322
788
2033
Devices
Ural Regional School Programming Contest 2014
2555
102
2034
Caravans
Ural Regional School Programming Contest 2014
904
286
2035
Another Dress Rehearsal
Ural Regional School Programming Contest 2014
3415
76
2062
Ambitious Experiment
Ural Regional School Programming Contest 2015
811
290
2063
Black and White
Ural Regional School Programming Contest 2015
553
423
2064
Caterpillars
Ural Regional School Programming Contest 2015
234
976
2065
Different Sums
Ural Regional School Programming Contest 2015
755
311
2066
Simple Expression
Ural Regional School Programming Contest 2015
8633
28
2067
Friends and Berries
Ural Regional School Programming Contest 2015
727
323
2068
Game of Nuts
Ural Regional School Programming Contest 2015
2225
107
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
647
2072
Kirill the Gardener 3
Ural Regional School Programming Contest 2015
1147
206
2073
Log Files
Ural Regional School Programming Contest 2015
996
237
2111
Plato
University academic school olympiad in informatics 2019
2225
72
2112
Battle log
University academic school olympiad in informatics 2019
187
815
2113
Survive the flood
University academic school olympiad in informatics 2019
366
427
2114
My craft
University academic school olympiad in informatics 2019
148
1017
2115
The Knowledge Day
University academic school olympiad in informatics 2019
702
226
2116
He is not a knight for you
University academic school olympiad in informatics 2019
176
864
2117
Polyphemus' triples
University academic school olympiad in informatics 2019
288
539
2138
The Good, the Bad and the Ugly
Ural School Programming Contest 2019
1339
111
2139
Experiment with Juice
Ural School Programming Contest 2019
22
4666
2140
BitMazeCraft
Ural School Programming Contest 2019
115
1194
2141
Sasha Vilkin
Ural School Programming Contest 2019
581
253
2142
Magic
Ural School Programming Contest 2019
1181
125
2143
Victoria!
Ural School Programming Contest 2019
210
679
2144
Cleaning the Room
Ural School Programming Contest 2019
655
225
2145
Olympiad for Everyone
Ural School Programming Contest 2019
382
381
2146
Quiz Show
Ural School Programming Contest 2019
212
673
2147
City Building
Ural School Programming Contest 2019
67
1939
2148
Insane Shot
Ural School Programming Contest 2019
291
496
2149
Pigeonhole Principle
Ural School Programming Contest 2019
997
148
2150
4B and Zoo
Ural School Programming Contest 2020
95
1174
2151
Mahjong
Ural School Programming Contest 2020
119
955
2152
Tax Fees
Ural School Programming Contest 2020
95
1174
2153
Perfect Squad
Ural School Programming Contest 2020
114
994
2154
Flight on a Cannonball
Ural School Programming Contest 2020
37
2622
2155
Quadrocopter
Ural School Programming Contest 2020
105
1072
2156
Interesting Conversations
Ural School Programming Contest 2020
177
659
2157
Skydiving
Ural School Programming Contest 2020
84
1311
2158
Two progressions
Ural School Programming Contest 2021
28
1948
2159
Essay
Ural School Programming Contest 2021
38
1545
2160
Meta-statement
Ural School Programming Contest 2021
49
1257
2161
Mount & Blade
Ural School Programming Contest 2021
81
815
2162
Graphmania
Ural School Programming Contest 2021
54
1157
2163
Interview
Ural School Programming Contest 2021
48
1277
2164
Bookmaker
Ural School Programming Contest 2021
29
1901
2165
Cake Cutter
Ural School Programming Contest 2021
28
1950
2166
Two Roads
Ural School Programming Contest 2022
22
2315
2167
Cipher Message 5
Ural School Programming Contest 2022
139
497
2168
Runes in the Field
Ural School Programming Contest 2022
10
3704
2169
City Building 2
Ural School Programming Contest 2022
25
2116
2170
Experiment with Juice 2
Ural School Programming Contest 2022
38
1543
2171
Two Progressions 2
Ural School Programming Contest 2022
38
1543
2172
Meta-statement 2
Ural School Programming Contest 2022
92
727
2173
Meta-statement 3
Ural School Programming Contest 2022
77
852
2174
Dualism of Numbers
Ural School Programming Contest 2023
40
923
2175
Staircase
Ural School Programming Contest 2023
25
1319
2176
Wonderful Numbers
Ural School Programming Contest 2023
30
1155
2177
Vadim and Sudoku: XV-Pairs
Ural School Programming Contest 2023
14
1923
2178
Vadim and Sudoku: Renban
Ural School Programming Contest 2023
11
2197
2179
Need More Roads
Ural School Programming Contest 2023
9
2427
2180
Need More Tasks
Ural School Programming Contest 2023
17
1709
2181
Student, or There and Back Again
Ural School Programming Contest 2023
14
1919
2182
Broken Rum
Ural School Programming Contest 2024
53
733
2183
Good Mood
Ural School Programming Contest 2024
53
733
2184
Flint's Favorite Number
Ural School Programming Contest 2024
22
1442
2185
Journey to the Treasure
Ural School Programming Contest 2024
7
2708
2186
Hands Up!
Ural School Programming Contest 2024
7
2708
2187
Need More Gold
Ural School Programming Contest 2024
14
1922
2188
They are charging the cannon... WHY?!
Ural School Programming Contest 2024
9
2429
2189
I Don't Like These Sailors!
Ural School Programming Contest 2024
30
1154
Solved problems:
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