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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
15708
99
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
23361
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
20200
68
1084
Goat in the Garden
Spring School Contest 2001
9154
150
1085
Meeting
Spring School Contest 2001
2182
626
1086
Cryptography
Spring School Contest 2001
12918
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
1624
840
1116
Piecewise Constant Function
Autumn School Contest 2001
1511
331
1117
Hierarchy
Autumn School Contest 2001
1799
279
1118
Nontrivial Numbers
Autumn School Contest 2001
4862
103
1119
Metro
Autumn School Contest 2001
7206
70
1120
Sum of Sequential Numbers
Autumn School Contest 2001
5823
86
1121
Branches
Autumn School Contest 2001
1422
352
1122
Game
Autumn School Contest 2001
2007
250
1123
Salary
Autumn School Contest 2001
4122
122
1190
Bar of Chocolate
Spring School Contest 2002
1475
341
1191
Catch the thief!
Spring School Contest 2002
2027
249
1192
Ball in a Dream
Spring School Contest 2002
4618
110
1193
Queue at the Exam
Spring School Contest 2002
2785
181
1194
Handshakes
Spring School Contest 2002
6080
83
1195
Ouths and Crosses
Spring School Contest 2002
1941
260
1196
History Exam
Spring School Contest 2002
9625
53
1197
Lonesome Knight
Spring School Contest 2002
18264
28
1209
1, 10, 100, 1000...
Autumn School Contest 2002
14936
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
492
1213
Cockroaches!
Autumn School Contest 2002
2978
171
1214
Strange Procedure
Autumn School Contest 2002
4982
102
1215
Exactness of Projectile Hit
Autumn School Contest 2002
1690
300
1257
Hyphenation
Autumn School Contest 2003
282
1769
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
4636
111
1261
Tips
Autumn School Contest 2003
1556
330
1262
Pseudo-Roman Number
Autumn School Contest 2003
1310
391
1263
Elections
Autumn School Contest 2003
12147
43
1264
Workdays
Autumn School Contest 2003
24645
21
1290
Sabotage
Spring School Contest 2004
6467
80
1291
Gear-wheels
Spring School Contest 2004
1338
385
1292
Mars Space Stations
Spring School Contest 2004
1351
381
1293
Eniya
Spring School Contest 2004
35837
14
1294
Mars Satellites
Spring School Contest 2004
1630
317
1295
Crazy Notions
Spring School Contest 2004
3421
151
1296
Hyperjump
Spring School Contest 2004
8300
62
1297
Palindrome
Spring School Contest 2004
6313
82
1298
Knight
Spring School Contest 2004
2223
232
1299
Psylonians
Spring School Contest 2004
323
1559
1327
Fuses
Autumn School Contest 2004
11120
47
1328
Fireball
Autumn School Contest 2004
359
1415
1329
Galactic History
Autumn School Contest 2004
1126
460
1330
Intervals
Autumn School Contest 2004
5450
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
2853
182
1336
Problem of Ben Betsalel
Autumn School Contest 2004
4248
123
1337
Bureaucracy
Autumn School Contest 2004
326
1554
1347
Blog
Spring School Contest 2005
369
1383
1348
Goat in the Garden 2
Spring School Contest 2005
2926
179
1349
Farm
Spring School Contest 2005
10317
51
1350
Canteen
Spring School Contest 2005
1336
389
1351
Good Gnusmas – Dead Gnusmas
Spring School Contest 2005
988
525
1352
Mersenne Primes
Spring School Contest 2005
3971
132
1353
Milliard Vasya's Function
Spring School Contest 2005
5063
103
1354
Palindrome. Again Palindrome
Spring School Contest 2005
3772
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
1191
1358
Cables
Spring School Contest 2005
955
543
1359
Construction
Spring School Contest 2005
441
1162
1400
Cellular Characters
Autumn School Contest 2005
946
550
1401
Gamers
Autumn School Contest 2005
3124
168
1402
Cocktails
Autumn School Contest 2005
4037
130
1403
Courier
Autumn School Contest 2005
1487
351
1404
Easy to Hack!
Autumn School Contest 2005
6600
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
1209
1409
Two Gangsters
Autumn School Contest 2005
34435
15
1489
Points on a Parallelepiped
Autumn School Contest 2006
1254
388
1490
Fire Circle
Autumn School Contest 2006
2492
196
1491
Unreal Story
Autumn School Contest 2006
2377
205
1492
Vasya's Dad 2
Autumn School Contest 2006
233
2016
1493
One Step from Happiness
Autumn School Contest 2006
10399
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
9996
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
319
1489
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
860
1576
Telephone Tariffs
Autumn School Contest 2007
3109
146
1577
E-mail
Autumn School Contest 2007
949
476
1578
Mammoth Hunt
Autumn School Contest 2007
506
884
1579
Coat Transportation
Autumn School Contest 2007
905
498
1580
Dean's Debts
Autumn School Contest 2007
496
901
1581
Teamwork
Autumn School Contest 2007
11309
40
1639
Chocolate 2
Autumn School Contest 2008
13097
32
1640
Circle of Winter
Autumn School Contest 2008
2387
176
1641
Duties
Autumn School Contest 2008
826
506
1642
1D Maze
Autumn School Contest 2008
4411
96
1643
Attack of the Dark Fortress
Autumn School Contest 2008
981
427
1644
A Whole Lot of Walnuts
Autumn School Contest 2008
4220
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
834
1648
Yachts
Autumn School Contest 2008
1090
385
1722
Observation Deck
Ural Regional School Programming Contest 2009
281
1352
1723
Sandro's Book
Ural Regional School Programming Contest 2009
6336
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
125
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
1144
1731
Dill
Ural Regional School Programming Contest 2009
3758
104
1785
Lost in Localization
Ural Regional School Programming Contest 2010
22511
16
1786
Sandro's Biography
Ural Regional School Programming Contest 2010
3338
109
1787
Turn for MEGA
Ural Regional School Programming Contest 2010
14755
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
253
1387
1791
Uncle Styopa and Buses
Ural Regional School Programming Contest 2010
236
1483
1792
Hamming Code
Ural Regional School Programming Contest 2010
4384
83
1793
Tray 2
Ural Regional School Programming Contest 2010
909
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
363
1874
Football Goal
Ural Regional School Programming Contest 2011
1706
196
1875
Angry Birds
Ural Regional School Programming Contest 2011
337
971
1876
Centipede's Morning
Ural Regional School Programming Contest 2011
6186
54
1877
Bicycle Codes
Ural Regional School Programming Contest 2011
17700
19
1878
Rubinchik's Cube
Ural Regional School Programming Contest 2011
1563
214
1879
GOV-internship 2
Ural Regional School Programming Contest 2011
219
1471
1880
Psych Up's Eigenvalues
Ural Regional School Programming Contest 2011
11199
30
1881
Long problem statement
Ural Regional School Programming Contest 2011
5518
61
1882
Old Nokia
Ural Regional School Programming Contest 2011
113
2739
1883
Ent's Birthday
Ural Regional School Programming Contest 2011
267
1216
1884
Way to the University
Ural Regional School Programming Contest 2011
495
667
1921
Chaos and Order
Ural Regional School Programming Contest 2012
237
1255
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
8083
38
1925
British Scientists Save the World
Ural Regional School Programming Contest 2012
4486
69
1926
The Tournament of Intelligences
Ural Regional School Programming Contest 2012
291
1030
1927
Herbs and Magic
Ural Regional School Programming Contest 2012
274
1092
1928
Another Ecology Problem
Ural Regional School Programming Contest 2012
388
779
1929
Teddybears are not for Everyone
Ural Regional School Programming Contest 2012
811
378
1930
Ivan's Car
Ural Regional School Programming Contest 2012
1861
166
2000
Grand Theft Array V
Ural Regional School Programming Contest 2013
1802
157
2001
Mathematicians and Berries
Ural Regional School Programming Contest 2013
13195
21
2002
Test Task
Ural Regional School Programming Contest 2013
4008
71
2003
Simple Magic
Ural Regional School Programming Contest 2013
778
360
2004
Scientists from Spilkovo
Ural Regional School Programming Contest 2013
363
761
2005
Taxi for Programmers
Ural Regional School Programming Contest 2013
3079
92
2006
Kirill the Gardener
Ural Regional School Programming Contest 2013
61
3997
2007
Mutants versus Machines
Ural Regional School Programming Contest 2013
135
1957
2008
Swifty
Ural Regional School Programming Contest 2013
248
1100
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
4265
61
2026
Dean and Schedule
Ural Regional School Programming Contest 2014
429
593
2027
URCAPL, Episode 1
Ural Regional School Programming Contest 2014
476
536
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
510
2031
Overturned Numbers
Ural Regional School Programming Contest 2014
3014
86
2032
Conspiracy Theory and Rebranding
Ural Regional School Programming Contest 2014
322
784
2033
Devices
Ural Regional School Programming Contest 2014
2551
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
423
2064
Caterpillars
Ural Regional School Programming Contest 2015
234
972
2065
Different Sums
Ural Regional School Programming Contest 2015
754
310
2066
Simple Expression
Ural Regional School Programming Contest 2015
8605
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
220
2070
Interesting Numbers
Ural Regional School Programming Contest 2015
1015
231
2071
Juice Cocktails
Ural Regional School Programming Contest 2015
357
646
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
186
813
2113
Survive the flood
University academic school olympiad in informatics 2019
365
425
2114
My craft
University academic school olympiad in informatics 2019
148
1008
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
856
2117
Polyphemus' triples
University academic school olympiad in informatics 2019
286
538
2138
The Good, the Bad and the Ugly
Ural School Programming Contest 2019
1332
110
2139
Experiment with Juice
Ural School Programming Contest 2019
22
4623
2140
BitMazeCraft
Ural School Programming Contest 2019
114
1193
2141
Sasha Vilkin
Ural School Programming Contest 2019
580
251
2142
Magic
Ural School Programming Contest 2019
1174
125
2143
Victoria!
Ural School Programming Contest 2019
210
673
2144
Cleaning the Room
Ural School Programming Contest 2019
654
223
2145
Olympiad for Everyone
Ural School Programming Contest 2019
381
378
2146
Quiz Show
Ural School Programming Contest 2019
212
666
2147
City Building
Ural School Programming Contest 2019
66
1947
2148
Insane Shot
Ural School Programming Contest 2019
290
493
2149
Pigeonhole Principle
Ural School Programming Contest 2019
995
147
2150
4B and Zoo
Ural School Programming Contest 2020
94
1172
2151
Mahjong
Ural School Programming Contest 2020
117
959
2152
Tax Fees
Ural School Programming Contest 2020
95
1160
2153
Perfect Squad
Ural School Programming Contest 2020
113
991
2154
Flight on a Cannonball
Ural School Programming Contest 2020
37
2592
2155
Quadrocopter
Ural School Programming Contest 2020
105
1059
2156
Interesting Conversations
Ural School Programming Contest 2020
177
652
2157
Skydiving
Ural School Programming Contest 2020
83
1310
2158
Two progressions
Ural School Programming Contest 2021
28
1909
2159
Essay
Ural School Programming Contest 2021
37
1546
2160
Meta-statement
Ural School Programming Contest 2021
48
1253
2161
Mount & Blade
Ural School Programming Contest 2021
81
799
2162
Graphmania
Ural School Programming Contest 2021
54
1134
2163
Interview
Ural School Programming Contest 2021
46
1296
2164
Bookmaker
Ural School Programming Contest 2021
29
1863
2165
Cake Cutter
Ural School Programming Contest 2021
28
1911
2166
Two Roads
Ural School Programming Contest 2022
22
2269
2167
Cipher Message 5
Ural School Programming Contest 2022
137
494
2168
Runes in the Field
Ural School Programming Contest 2022
10
3630
2169
City Building 2
Ural School Programming Contest 2022
23
2200
2170
Experiment with Juice 2
Ural School Programming Contest 2022
36
1578
2171
Two Progressions 2
Ural School Programming Contest 2022
38
1513
2172
Meta-statement 2
Ural School Programming Contest 2022
92
712
2173
Meta-statement 3
Ural School Programming Contest 2022
77
835
2174
Dualism of Numbers
Ural School Programming Contest 2023
40
893
2175
Staircase
Ural School Programming Contest 2023
23
1352
2176
Wonderful Numbers
Ural School Programming Contest 2023
30
1117
2177
Vadim and Sudoku: XV-Pairs
Ural School Programming Contest 2023
12
2029
2178
Vadim and Sudoku: Renban
Ural School Programming Contest 2023
10
2231
2179
Need More Roads
Ural School Programming Contest 2023
8
2478
2180
Need More Tasks
Ural School Programming Contest 2023
14
1859
2181
Student, or There and Back Again
Ural School Programming Contest 2023
13
1936
2182
Broken Rum
Ural School Programming Contest 2024
53
709
2183
Good Mood
Ural School Programming Contest 2024
53
709
2184
Flint's Favorite Number
Ural School Programming Contest 2024
20
1487
2185
Journey to the Treasure
Ural School Programming Contest 2024
5
2968
2186
Hands Up!
Ural School Programming Contest 2024
6
2782
2187
Need More Gold
Ural School Programming Contest 2024
13
1940
2188
They are charging the cannon... WHY?!
Ural School Programming Contest 2024
7
2626
2189
I Don't Like These Sailors!
Ural School Programming Contest 2024
29
1144
Solved problems:
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