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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
15622
100
1021
Sacrament of the Sum
Autumn School Contest 2000
10536
147
1022
Genealogical Tree
Autumn School Contest 2000
10986
141
1023
Buttons
Autumn School Contest 2000
7196
216
1024
Permutations
Autumn School Contest 2000
4866
319
1025
Democracy in Danger
Autumn School Contest 2000
23217
67
1026
Questions and Answers
Autumn School Contest 2000
9884
157
1027
D++ Again
Autumn School Contest 2000
2444
634
1082
Gaby Ivanushka
Spring School Contest 2001
10886
125
1083
Factorials!!!
Spring School Contest 2001
20152
68
1084
Goat in the Garden
Spring School Contest 2001
9119
150
1085
Meeting
Spring School Contest 2001
2178
624
1086
Cryptography
Spring School Contest 2001
12857
106
1087
The Time to Take Stones
Spring School Contest 2001
4951
275
1088
Ilya Murometz
Spring School Contest 2001
1822
746
1089
Verification with the Dictionary
Spring School Contest 2001
1621
838
1116
Piecewise Constant Function
Autumn School Contest 2001
1508
331
1117
Hierarchy
Autumn School Contest 2001
1796
278
1118
Nontrivial Numbers
Autumn School Contest 2001
4851
103
1119
Metro
Autumn School Contest 2001
7176
70
1120
Sum of Sequential Numbers
Autumn School Contest 2001
5743
87
1121
Branches
Autumn School Contest 2001
1421
351
1122
Game
Autumn School Contest 2001
2005
249
1123
Salary
Autumn School Contest 2001
4114
122
1190
Bar of Chocolate
Spring School Contest 2002
1615
310
1191
Catch the thief!
Spring School Contest 2002
2024
248
1192
Ball in a Dream
Spring School Contest 2002
4610
109
1193
Queue at the Exam
Spring School Contest 2002
2765
182
1194
Handshakes
Spring School Contest 2002
6072
83
1195
Ouths and Crosses
Spring School Contest 2002
1936
259
1196
History Exam
Spring School Contest 2002
9463
53
1197
Lonesome Knight
Spring School Contest 2002
18113
28
1209
1, 10, 100, 1000...
Autumn School Contest 2002
14801
34
1210
Kind Spirits
Autumn School Contest 2002
3105
163
1211
Collective Guarantee
Autumn School Contest 2002
1625
311
1212
Battleship
Autumn School Contest 2002
1023
492
1213
Cockroaches!
Autumn School Contest 2002
2971
170
1214
Strange Procedure
Autumn School Contest 2002
4973
102
1215
Exactness of Projectile Hit
Autumn School Contest 2002
1679
301
1257
Hyphenation
Autumn School Contest 2003
282
1761
1258
Pool
Autumn School Contest 2003
1224
417
1259
How to Become Star?
Autumn School Contest 2003
1292
395
1260
Nudnik Photographer
Autumn School Contest 2003
4629
111
1261
Tips
Autumn School Contest 2003
1551
329
1262
Pseudo-Roman Number
Autumn School Contest 2003
1307
391
1263
Elections
Autumn School Contest 2003
12038
43
1264
Workdays
Autumn School Contest 2003
24403
21
1290
Sabotage
Spring School Contest 2004
6440
80
1291
Gear-wheels
Spring School Contest 2004
1332
385
1292
Mars Space Stations
Spring School Contest 2004
1349
380
1293
Eniya
Spring School Contest 2004
35520
15
1294
Mars Satellites
Spring School Contest 2004
1627
316
1295
Crazy Notions
Spring School Contest 2004
3413
151
1296
Hyperjump
Spring School Contest 2004
8171
63
1297
Palindrome
Spring School Contest 2004
6283
82
1298
Knight
Spring School Contest 2004
2209
233
1299
Psylonians
Spring School Contest 2004
323
1552
1327
Fuses
Autumn School Contest 2004
11084
47
1328
Fireball
Autumn School Contest 2004
358
1413
1329
Galactic History
Autumn School Contest 2004
1121
460
1330
Intervals
Autumn School Contest 2004
5405
96
1331
Vladislava
Autumn School Contest 2004
510
1000
1332
Genie Bomber
Autumn School Contest 2004
827
621
1333
Genie Bomber 2
Autumn School Contest 2004
2383
217
1334
Checkers
Autumn School Contest 2004
953
540
1335
White Thesis
Autumn School Contest 2004
2849
182
1336
Problem of Ben Betsalel
Autumn School Contest 2004
4246
122
1337
Bureaucracy
Autumn School Contest 2004
325
1552
1347
Blog
Spring School Contest 2005
369
1377
1348
Goat in the Garden 2
Spring School Contest 2005
2909
179
1349
Farm
Spring School Contest 2005
10288
51
1350
Canteen
Spring School Contest 2005
1333
389
1351
Good Gnusmas – Dead Gnusmas
Spring School Contest 2005
985
525
1352
Mersenne Primes
Spring School Contest 2005
3968
131
1353
Milliard Vasya's Function
Spring School Contest 2005
5048
103
1354
Palindrome. Again Palindrome
Spring School Contest 2005
3764
138
1355
Bald Spot Revisited
Spring School Contest 2005
2461
211
1356
Something Easier
Spring School Contest 2005
1751
296
1357
Teakettle 1.0 for Dummies
Spring School Contest 2005
428
1192
1358
Cables
Spring School Contest 2005
952
543
1359
Construction
Spring School Contest 2005
440
1160
1400
Cellular Characters
Autumn School Contest 2005
942
550
1401
Gamers
Autumn School Contest 2005
3118
167
1402
Cocktails
Autumn School Contest 2005
4033
130
1403
Courier
Autumn School Contest 2005
1485
350
1404
Easy to Hack!
Autumn School Contest 2005
6491
81
1405
Goat in the Garden 5
Autumn School Contest 2005
721
716
1406
Next Number
Autumn School Contest 2005
1505
346
1407
One-two, One-two
Autumn School Contest 2005
1348
386
1408
Polynomial Multiplication
Autumn School Contest 2005
424
1207
1409
Two Gangsters
Autumn School Contest 2005
34172
15
1489
Points on a Parallelepiped
Autumn School Contest 2006
1246
388
1490
Fire Circle
Autumn School Contest 2006
2464
197
1491
Unreal Story
Autumn School Contest 2006
2331
208
1492
Vasya's Dad 2
Autumn School Contest 2006
233
2005
1493
One Step from Happiness
Autumn School Contest 2006
10286
47
1494
Monobilliards
Autumn School Contest 2006
5236
93
1495
One-two, One-two 2
Autumn School Contest 2006
1428
339
1496
Spammer
Autumn School Contest 2006
9948
49
1497
Cutting a Square
Autumn School Contest 2006
1610
301
1498
Stroke at Full Speed
Autumn School Contest 2006
538
889
1499
Kerchiefs
Autumn School Contest 2006
319
1481
1572
Yekaterinozavodsk Great Well
Autumn School Contest 2007
3086
146
1573
Alchemy
Autumn School Contest 2007
4210
107
1574
Mathematicians and brackets
Autumn School Contest 2007
1268
355
1575
Yekaterinburg Subway 2
Autumn School Contest 2007
517
860
1576
Telephone Tariffs
Autumn School Contest 2007
3071
147
1577
E-mail
Autumn School Contest 2007
944
475
1578
Mammoth Hunt
Autumn School Contest 2007
504
882
1579
Coat Transportation
Autumn School Contest 2007
901
498
1580
Dean's Debts
Autumn School Contest 2007
496
896
1581
Teamwork
Autumn School Contest 2007
11178
41
1639
Chocolate 2
Autumn School Contest 2008
13006
32
1640
Circle of Winter
Autumn School Contest 2008
2386
175
1641
Duties
Autumn School Contest 2008
824
504
1642
1D Maze
Autumn School Contest 2008
4355
96
1643
Attack of the Dark Fortress
Autumn School Contest 2008
977
426
1644
A Whole Lot of Walnuts
Autumn School Contest 2008
4207
100
1645
Ski Race
Autumn School Contest 2008
2098
199
1646
Godzilla Strikes Back!
Autumn School Contest 2008
458
898
1647
Divide an Island!
Autumn School Contest 2008
494
834
1648
Yachts
Autumn School Contest 2008
1089
382
1722
Observation Deck
Ural Regional School Programming Contest 2009
279
1351
1723
Sandro's Book
Ural Regional School Programming Contest 2009
6295
62
1724
Origin of Man Clarified
Ural Regional School Programming Contest 2009
582
660
1725
Sold Out!
Ural Regional School Programming Contest 2009
2783
140
1726
Visits
Ural Regional School Programming Contest 2009
3121
125
1727
Znaika's Magic Numbers
Ural Regional School Programming Contest 2009
1955
199
1728
Curse on Team.GOV
Ural Regional School Programming Contest 2009
733
526
1729
Dead Man's Chest
Ural Regional School Programming Contest 2009
611
629
1730
ManBearPig
Ural Regional School Programming Contest 2009
331
1145
1731
Dill
Ural Regional School Programming Contest 2009
3750
104
1785
Lost in Localization
Ural Regional School Programming Contest 2010
22274
16
1786
Sandro's Biography
Ural Regional School Programming Contest 2010
3332
108
1787
Turn for MEGA
Ural Regional School Programming Contest 2010
14533
25
1788
On the Benefits of Umbrellas
Ural Regional School Programming Contest 2010
2262
159
1789
Searching for the Dodecahedron
Ural Regional School Programming Contest 2010
1660
217
1790
Searching for the Truth
Ural Regional School Programming Contest 2010
253
1375
1791
Uncle Styopa and Buses
Ural Regional School Programming Contest 2010
236
1470
1792
Hamming Code
Ural Regional School Programming Contest 2010
4374
83
1793
Tray 2
Ural Regional School Programming Contest 2010
909
394
1794
Masterpieces of World Architecture
Ural Regional School Programming Contest 2010
1823
197
1795
Husband in a Shop
Ural Regional School Programming Contest 2010
1447
248
1796
Amusement Park
Ural Regional School Programming Contest 2010
3319
109
1873
GOV Chronicles
Ural Regional School Programming Contest 2011
916
360
1874
Football Goal
Ural Regional School Programming Contest 2011
1704
195
1875
Angry Birds
Ural Regional School Programming Contest 2011
334
970
1876
Centipede's Morning
Ural Regional School Programming Contest 2011
6148
54
1877
Bicycle Codes
Ural Regional School Programming Contest 2011
17456
19
1878
Rubinchik's Cube
Ural Regional School Programming Contest 2011
1558
213
1879
GOV-internship 2
Ural Regional School Programming Contest 2011
219
1457
1880
Psych Up's Eigenvalues
Ural Regional School Programming Contest 2011
11005
30
1881
Long problem statement
Ural Regional School Programming Contest 2011
5464
61
1882
Old Nokia
Ural Regional School Programming Contest 2011
112
2735
1883
Ent's Birthday
Ural Regional School Programming Contest 2011
266
1209
1884
Way to the University
Ural Regional School Programming Contest 2011
494
662
1921
Chaos and Order
Ural Regional School Programming Contest 2012
237
1242
1922
Superhero Team
Ural Regional School Programming Contest 2012
969
313
1923
Scary Politics
Ural Regional School Programming Contest 2012
555
543
1924
Four Imps
Ural Regional School Programming Contest 2012
8006
38
1925
British Scientists Save the World
Ural Regional School Programming Contest 2012
4462
69
1926
The Tournament of Intelligences
Ural Regional School Programming Contest 2012
290
1022
1927
Herbs and Magic
Ural Regional School Programming Contest 2012
272
1088
1928
Another Ecology Problem
Ural Regional School Programming Contest 2012
388
771
1929
Teddybears are not for Everyone
Ural Regional School Programming Contest 2012
809
374
1930
Ivan's Car
Ural Regional School Programming Contest 2012
1843
166
2000
Grand Theft Array V
Ural Regional School Programming Contest 2013
1800
155
2001
Mathematicians and Berries
Ural Regional School Programming Contest 2013
12950
22
2002
Test Task
Ural Regional School Programming Contest 2013
3994
70
2003
Simple Magic
Ural Regional School Programming Contest 2013
776
357
2004
Scientists from Spilkovo
Ural Regional School Programming Contest 2013
361
755
2005
Taxi for Programmers
Ural Regional School Programming Contest 2013
3072
91
2006
Kirill the Gardener
Ural Regional School Programming Contest 2013
60
4004
2007
Mutants versus Machines
Ural Regional School Programming Contest 2013
133
1960
2008
Swifty
Ural Regional School Programming Contest 2013
248
1086
2009
Canteen Line
Ural Regional School Programming Contest 2013
326
834
2010
Sasha the Young Grandmaster
Ural Regional School Programming Contest 2013
2136
131
2011
Long Statement
Ural Regional School Programming Contest 2013
2774
101
2024
Adventure Time
Ural Regional School Programming Contest 2014
763
332
2025
Line Fighting
Ural Regional School Programming Contest 2014
4249
60
2026
Dean and Schedule
Ural Regional School Programming Contest 2014
428
586
2027
URCAPL, Episode 1
Ural Regional School Programming Contest 2014
474
530
2028
URCAPL, Episode 2
Ural Regional School Programming Contest 2014
289
858
2029
Towers of Hanoi Strike Back
Ural Regional School Programming Contest 2014
415
604
2030
Awesome Backup System
Ural Regional School Programming Contest 2014
497
506
2031
Overturned Numbers
Ural Regional School Programming Contest 2014
3006
85
2032
Conspiracy Theory and Rebranding
Ural Regional School Programming Contest 2014
321
775
2033
Devices
Ural Regional School Programming Contest 2014
2529
101
2034
Caravans
Ural Regional School Programming Contest 2014
894
284
2035
Another Dress Rehearsal
Ural Regional School Programming Contest 2014
3383
76
2062
Ambitious Experiment
Ural Regional School Programming Contest 2015
809
285
2063
Black and White
Ural Regional School Programming Contest 2015
540
424
2064
Caterpillars
Ural Regional School Programming Contest 2015
233
960
2065
Different Sums
Ural Regional School Programming Contest 2015
753
306
2066
Simple Expression
Ural Regional School Programming Contest 2015
8399
28
2067
Friends and Berries
Ural Regional School Programming Contest 2015
722
319
2068
Game of Nuts
Ural Regional School Programming Contest 2015
2213
105
2069
Hard Rock
Ural Regional School Programming Contest 2015
1064
217
2070
Interesting Numbers
Ural Regional School Programming Contest 2015
1014
228
2071
Juice Cocktails
Ural Regional School Programming Contest 2015
356
637
2072
Kirill the Gardener 3
Ural Regional School Programming Contest 2015
1135
204
2073
Log Files
Ural Regional School Programming Contest 2015
995
232
2111
Plato
University academic school olympiad in informatics 2019
2179
71
2112
Battle log
University academic school olympiad in informatics 2019
186
792
2113
Survive the flood
University academic school olympiad in informatics 2019
360
419
2114
My craft
University academic school olympiad in informatics 2019
146
994
2115
The Knowledge Day
University academic school olympiad in informatics 2019
698
219
2116
He is not a knight for you
University academic school olympiad in informatics 2019
174
843
2117
Polyphemus' triples
University academic school olympiad in informatics 2019
278
539
2138
The Good, the Bad and the Ugly
Ural School Programming Contest 2019
1322
108
2139
Experiment with Juice
Ural School Programming Contest 2019
22
4492
2140
BitMazeCraft
Ural School Programming Contest 2019
114
1159
2141
Sasha Vilkin
Ural School Programming Contest 2019
569
248
2142
Magic
Ural School Programming Contest 2019
1160
123
2143
Victoria!
Ural School Programming Contest 2019
207
662
2144
Cleaning the Room
Ural School Programming Contest 2019
643
220
2145
Olympiad for Everyone
Ural School Programming Contest 2019
377
371
2146
Quiz Show
Ural School Programming Contest 2019
207
662
2147
City Building
Ural School Programming Contest 2019
66
1891
2148
Insane Shot
Ural School Programming Contest 2019
286
486
2149
Pigeonhole Principle
Ural School Programming Contest 2019
970
147
2150
4B and Zoo
Ural School Programming Contest 2020
94
1130
2151
Mahjong
Ural School Programming Contest 2020
115
940
2152
Tax Fees
Ural School Programming Contest 2020
94
1130
2153
Perfect Squad
Ural School Programming Contest 2020
112
963
2154
Flight on a Cannonball
Ural School Programming Contest 2020
37
2500
2155
Quadrocopter
Ural School Programming Contest 2020
104
1031
2156
Interesting Conversations
Ural School Programming Contest 2020
175
635
2157
Skydiving
Ural School Programming Contest 2020
80
1306
2158
Two progressions
Ural School Programming Contest 2021
28
1789
2159
Essay
Ural School Programming Contest 2021
37
1449
2160
Meta-statement
Ural School Programming Contest 2021
48
1174
2161
Mount & Blade
Ural School Programming Contest 2021
80
757
2162
Graphmania
Ural School Programming Contest 2021
53
1080
2163
Interview
Ural School Programming Contest 2021
42
1308
2164
Bookmaker
Ural School Programming Contest 2021
29
1746
2165
Cake Cutter
Ural School Programming Contest 2021
26
1891
2166
Two Roads
Ural School Programming Contest 2022
19
2346
2167
Cipher Message 5
Ural School Programming Contest 2022
127
497
2168
Runes in the Field
Ural School Programming Contest 2022
10
3401
2169
City Building 2
Ural School Programming Contest 2022
23
2061
2170
Experiment with Juice 2
Ural School Programming Contest 2022
33
1582
2171
Two Progressions 2
Ural School Programming Contest 2022
37
1447
2172
Meta-statement 2
Ural School Programming Contest 2022
86
709
2173
Meta-statement 3
Ural School Programming Contest 2022
76
791
2174
Dualism of Numbers
Ural School Programming Contest 2023
36
868
2175
Staircase
Ural School Programming Contest 2023
21
1288
2176
Wonderful Numbers
Ural School Programming Contest 2023
28
1052
2177
Vadim and Sudoku: XV-Pairs
Ural School Programming Contest 2023
9
2102
2178
Vadim and Sudoku: Renban
Ural School Programming Contest 2023
8
2217
2179
Need More Roads
Ural School Programming Contest 2023
7
2346
2180
Need More Tasks
Ural School Programming Contest 2023
13
1735
2181
Student, or There and Back Again
Ural School Programming Contest 2023
11
1896
2182
Broken Rum
Ural School Programming Contest 2024
44
739
2183
Good Mood
Ural School Programming Contest 2024
44
739
2184
Flint's Favorite Number
Ural School Programming Contest 2024
16
1535
2185
Journey to the Treasure
Ural School Programming Contest 2024
5
2654
2186
Hands Up!
Ural School Programming Contest 2024
6
2488
2187
Need More Gold
Ural School Programming Contest 2024
13
1735
2188
They are charging the cannon... WHY?!
Ural School Programming Contest 2024
7
2348
2189
I Don't Like These Sailors!
Ural School Programming Contest 2024
27
1079
Solved problems:
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