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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
15596
99
1021
Sacrament of the Sum
Autumn School Contest 2000
10524
147
1022
Genealogical Tree
Autumn School Contest 2000
10971
141
1023
Buttons
Autumn School Contest 2000
7190
215
1024
Permutations
Autumn School Contest 2000
4857
319
1025
Democracy in Danger
Autumn School Contest 2000
23190
67
1026
Questions and Answers
Autumn School Contest 2000
9873
157
1027
D++ Again
Autumn School Contest 2000
2444
632
1082
Gaby Ivanushka
Spring School Contest 2001
10874
125
1083
Factorials!!!
Spring School Contest 2001
20126
68
1084
Goat in the Garden
Spring School Contest 2001
9081
150
1085
Meeting
Spring School Contest 2001
2176
623
1086
Cryptography
Spring School Contest 2001
12840
106
1087
The Time to Take Stones
Spring School Contest 2001
4946
275
1088
Ilya Murometz
Spring School Contest 2001
1819
745
1089
Verification with the Dictionary
Spring School Contest 2001
1619
837
1116
Piecewise Constant Function
Autumn School Contest 2001
1503
331
1117
Hierarchy
Autumn School Contest 2001
1795
277
1118
Nontrivial Numbers
Autumn School Contest 2001
4845
103
1119
Metro
Autumn School Contest 2001
7163
70
1120
Sum of Sequential Numbers
Autumn School Contest 2001
5737
87
1121
Branches
Autumn School Contest 2001
1418
350
1122
Game
Autumn School Contest 2001
2002
249
1123
Salary
Autumn School Contest 2001
4106
122
1190
Bar of Chocolate
Spring School Contest 2002
1611
310
1191
Catch the thief!
Spring School Contest 2002
2024
247
1192
Ball in a Dream
Spring School Contest 2002
4604
109
1193
Queue at the Exam
Spring School Contest 2002
2761
182
1194
Handshakes
Spring School Contest 2002
6069
83
1195
Ouths and Crosses
Spring School Contest 2002
1934
259
1196
History Exam
Spring School Contest 2002
9449
53
1197
Lonesome Knight
Spring School Contest 2002
18079
28
1209
1, 10, 100, 1000...
Autumn School Contest 2002
14770
34
1210
Kind Spirits
Autumn School Contest 2002
3103
163
1211
Collective Guarantee
Autumn School Contest 2002
1620
311
1212
Battleship
Autumn School Contest 2002
1023
491
1213
Cockroaches!
Autumn School Contest 2002
2965
170
1214
Strange Procedure
Autumn School Contest 2002
4966
102
1215
Exactness of Projectile Hit
Autumn School Contest 2002
1675
301
1257
Hyphenation
Autumn School Contest 2003
282
1757
1258
Pool
Autumn School Contest 2003
1222
416
1259
How to Become Star?
Autumn School Contest 2003
1290
395
1260
Nudnik Photographer
Autumn School Contest 2003
4621
111
1261
Tips
Autumn School Contest 2003
1548
329
1262
Pseudo-Roman Number
Autumn School Contest 2003
1305
390
1263
Elections
Autumn School Contest 2003
12012
43
1264
Workdays
Autumn School Contest 2003
24357
21
1290
Sabotage
Spring School Contest 2004
6432
80
1291
Gear-wheels
Spring School Contest 2004
1330
385
1292
Mars Space Stations
Spring School Contest 2004
1347
380
1293
Eniya
Spring School Contest 2004
35441
15
1294
Mars Satellites
Spring School Contest 2004
1625
315
1295
Crazy Notions
Spring School Contest 2004
3405
151
1296
Hyperjump
Spring School Contest 2004
8155
63
1297
Palindrome
Spring School Contest 2004
6274
82
1298
Knight
Spring School Contest 2004
2204
233
1299
Psylonians
Spring School Contest 2004
323
1548
1327
Fuses
Autumn School Contest 2004
11073
47
1328
Fireball
Autumn School Contest 2004
358
1410
1329
Galactic History
Autumn School Contest 2004
1117
460
1330
Intervals
Autumn School Contest 2004
5395
96
1331
Vladislava
Autumn School Contest 2004
510
998
1332
Genie Bomber
Autumn School Contest 2004
827
620
1333
Genie Bomber 2
Autumn School Contest 2004
2380
217
1334
Checkers
Autumn School Contest 2004
951
540
1335
White Thesis
Autumn School Contest 2004
2845
182
1336
Problem of Ben Betsalel
Autumn School Contest 2004
4240
122
1337
Bureaucracy
Autumn School Contest 2004
323
1558
1347
Blog
Spring School Contest 2005
369
1374
1348
Goat in the Garden 2
Spring School Contest 2005
2904
179
1349
Farm
Spring School Contest 2005
10273
51
1350
Canteen
Spring School Contest 2005
1332
388
1351
Good Gnusmas – Dead Gnusmas
Spring School Contest 2005
985
523
1352
Mersenne Primes
Spring School Contest 2005
3964
131
1353
Milliard Vasya's Function
Spring School Contest 2005
5038
103
1354
Palindrome. Again Palindrome
Spring School Contest 2005
3759
138
1355
Bald Spot Revisited
Spring School Contest 2005
2456
211
1356
Something Easier
Spring School Contest 2005
1746
297
1357
Teakettle 1.0 for Dummies
Spring School Contest 2005
427
1192
1358
Cables
Spring School Contest 2005
951
542
1359
Construction
Spring School Contest 2005
439
1160
1400
Cellular Characters
Autumn School Contest 2005
941
549
1401
Gamers
Autumn School Contest 2005
3110
167
1402
Cocktails
Autumn School Contest 2005
4028
129
1403
Courier
Autumn School Contest 2005
1480
351
1404
Easy to Hack!
Autumn School Contest 2005
6483
80
1405
Goat in the Garden 5
Autumn School Contest 2005
720
716
1406
Next Number
Autumn School Contest 2005
1501
346
1407
One-two, One-two
Autumn School Contest 2005
1345
386
1408
Polynomial Multiplication
Autumn School Contest 2005
424
1204
1409
Two Gangsters
Autumn School Contest 2005
33999
15
1489
Points on a Parallelepiped
Autumn School Contest 2006
1245
387
1490
Fire Circle
Autumn School Contest 2006
2460
197
1491
Unreal Story
Autumn School Contest 2006
2327
208
1492
Vasya's Dad 2
Autumn School Contest 2006
233
2000
1493
One Step from Happiness
Autumn School Contest 2006
10275
47
1494
Monobilliards
Autumn School Contest 2006
5222
93
1495
One-two, One-two 2
Autumn School Contest 2006
1421
340
1496
Spammer
Autumn School Contest 2006
9925
49
1497
Cutting a Square
Autumn School Contest 2006
1606
301
1498
Stroke at Full Speed
Autumn School Contest 2006
538
887
1499
Kerchiefs
Autumn School Contest 2006
319
1477
1572
Yekaterinozavodsk Great Well
Autumn School Contest 2007
3081
146
1573
Alchemy
Autumn School Contest 2007
4205
107
1574
Mathematicians and brackets
Autumn School Contest 2007
1264
355
1575
Yekaterinburg Subway 2
Autumn School Contest 2007
514
863
1576
Telephone Tariffs
Autumn School Contest 2007
3063
147
1577
E-mail
Autumn School Contest 2007
943
474
1578
Mammoth Hunt
Autumn School Contest 2007
504
879
1579
Coat Transportation
Autumn School Contest 2007
898
498
1580
Dean's Debts
Autumn School Contest 2007
496
893
1581
Teamwork
Autumn School Contest 2007
11166
40
1639
Chocolate 2
Autumn School Contest 2008
12983
32
1640
Circle of Winter
Autumn School Contest 2008
2379
175
1641
Duties
Autumn School Contest 2008
823
503
1642
1D Maze
Autumn School Contest 2008
4346
96
1643
Attack of the Dark Fortress
Autumn School Contest 2008
976
425
1644
A Whole Lot of Walnuts
Autumn School Contest 2008
4196
100
1645
Ski Race
Autumn School Contest 2008
2094
199
1646
Godzilla Strikes Back!
Autumn School Contest 2008
457
897
1647
Divide an Island!
Autumn School Contest 2008
492
834
1648
Yachts
Autumn School Contest 2008
1086
382
1722
Observation Deck
Ural Regional School Programming Contest 2009
279
1346
1723
Sandro's Book
Ural Regional School Programming Contest 2009
6287
62
1724
Origin of Man Clarified
Ural Regional School Programming Contest 2009
580
659
1725
Sold Out!
Ural Regional School Programming Contest 2009
2778
140
1726
Visits
Ural Regional School Programming Contest 2009
3111
125
1727
Znaika's Magic Numbers
Ural Regional School Programming Contest 2009
1947
199
1728
Curse on Team.GOV
Ural Regional School Programming Contest 2009
733
524
1729
Dead Man's Chest
Ural Regional School Programming Contest 2009
610
628
1730
ManBearPig
Ural Regional School Programming Contest 2009
331
1141
1731
Dill
Ural Regional School Programming Contest 2009
3742
104
1785
Lost in Localization
Ural Regional School Programming Contest 2010
22234
16
1786
Sandro's Biography
Ural Regional School Programming Contest 2010
3327
108
1787
Turn for MEGA
Ural Regional School Programming Contest 2010
14503
25
1788
On the Benefits of Umbrellas
Ural Regional School Programming Contest 2010
2255
159
1789
Searching for the Dodecahedron
Ural Regional School Programming Contest 2010
1657
216
1790
Searching for the Truth
Ural Regional School Programming Contest 2010
253
1370
1791
Uncle Styopa and Buses
Ural Regional School Programming Contest 2010
236
1464
1792
Hamming Code
Ural Regional School Programming Contest 2010
4352
83
1793
Tray 2
Ural Regional School Programming Contest 2010
908
392
1794
Masterpieces of World Architecture
Ural Regional School Programming Contest 2010
1816
197
1795
Husband in a Shop
Ural Regional School Programming Contest 2010
1446
247
1796
Amusement Park
Ural Regional School Programming Contest 2010
3311
108
1873
GOV Chronicles
Ural Regional School Programming Contest 2011
912
360
1874
Football Goal
Ural Regional School Programming Contest 2011
1700
194
1875
Angry Birds
Ural Regional School Programming Contest 2011
333
968
1876
Centipede's Morning
Ural Regional School Programming Contest 2011
6126
54
1877
Bicycle Codes
Ural Regional School Programming Contest 2011
17416
19
1878
Rubinchik's Cube
Ural Regional School Programming Contest 2011
1556
212
1879
GOV-internship 2
Ural Regional School Programming Contest 2011
218
1456
1880
Psych Up's Eigenvalues
Ural Regional School Programming Contest 2011
10980
30
1881
Long problem statement
Ural Regional School Programming Contest 2011
5455
61
1882
Old Nokia
Ural Regional School Programming Contest 2011
110
2767
1883
Ent's Birthday
Ural Regional School Programming Contest 2011
265
1207
1884
Way to the University
Ural Regional School Programming Contest 2011
494
659
1921
Chaos and Order
Ural Regional School Programming Contest 2012
237
1235
1922
Superhero Team
Ural Regional School Programming Contest 2012
966
313
1923
Scary Politics
Ural Regional School Programming Contest 2012
554
541
1924
Four Imps
Ural Regional School Programming Contest 2012
7992
38
1925
British Scientists Save the World
Ural Regional School Programming Contest 2012
4457
68
1926
The Tournament of Intelligences
Ural Regional School Programming Contest 2012
290
1017
1927
Herbs and Magic
Ural Regional School Programming Contest 2012
272
1082
1928
Another Ecology Problem
Ural Regional School Programming Contest 2012
387
768
1929
Teddybears are not for Everyone
Ural Regional School Programming Contest 2012
808
373
1930
Ivan's Car
Ural Regional School Programming Contest 2012
1834
165
2000
Grand Theft Array V
Ural Regional School Programming Contest 2013
1794
154
2001
Mathematicians and Berries
Ural Regional School Programming Contest 2013
12900
22
2002
Test Task
Ural Regional School Programming Contest 2013
3984
70
2003
Simple Magic
Ural Regional School Programming Contest 2013
773
356
2004
Scientists from Spilkovo
Ural Regional School Programming Contest 2013
360
753
2005
Taxi for Programmers
Ural Regional School Programming Contest 2013
3063
91
2006
Kirill the Gardener
Ural Regional School Programming Contest 2013
59
4037
2007
Mutants versus Machines
Ural Regional School Programming Contest 2013
133
1948
2008
Swifty
Ural Regional School Programming Contest 2013
248
1080
2009
Canteen Line
Ural Regional School Programming Contest 2013
324
834
2010
Sasha the Young Grandmaster
Ural Regional School Programming Contest 2013
2129
130
2011
Long Statement
Ural Regional School Programming Contest 2013
2765
100
2024
Adventure Time
Ural Regional School Programming Contest 2014
758
332
2025
Line Fighting
Ural Regional School Programming Contest 2014
4234
60
2026
Dean and Schedule
Ural Regional School Programming Contest 2014
426
584
2027
URCAPL, Episode 1
Ural Regional School Programming Contest 2014
472
529
2028
URCAPL, Episode 2
Ural Regional School Programming Contest 2014
288
855
2029
Towers of Hanoi Strike Back
Ural Regional School Programming Contest 2014
414
601
2030
Awesome Backup System
Ural Regional School Programming Contest 2014
496
504
2031
Overturned Numbers
Ural Regional School Programming Contest 2014
2996
85
2032
Conspiracy Theory and Rebranding
Ural Regional School Programming Contest 2014
321
770
2033
Devices
Ural Regional School Programming Contest 2014
2517
101
2034
Caravans
Ural Regional School Programming Contest 2014
885
285
2035
Another Dress Rehearsal
Ural Regional School Programming Contest 2014
3375
75
2062
Ambitious Experiment
Ural Regional School Programming Contest 2015
805
284
2063
Black and White
Ural Regional School Programming Contest 2015
538
422
2064
Caterpillars
Ural Regional School Programming Contest 2015
232
956
2065
Different Sums
Ural Regional School Programming Contest 2015
748
305
2066
Simple Expression
Ural Regional School Programming Contest 2015
8364
28
2067
Friends and Berries
Ural Regional School Programming Contest 2015
719
317
2068
Game of Nuts
Ural Regional School Programming Contest 2015
2205
104
2069
Hard Rock
Ural Regional School Programming Contest 2015
1062
216
2070
Interesting Numbers
Ural Regional School Programming Contest 2015
1008
227
2071
Juice Cocktails
Ural Regional School Programming Contest 2015
354
636
2072
Kirill the Gardener 3
Ural Regional School Programming Contest 2015
1130
203
2073
Log Files
Ural Regional School Programming Contest 2015
990
231
2111
Plato
University academic school olympiad in informatics 2019
2167
70
2112
Battle log
University academic school olympiad in informatics 2019
186
781
2113
Survive the flood
University academic school olympiad in informatics 2019
358
416
2114
My craft
University academic school olympiad in informatics 2019
146
981
2115
The Knowledge Day
University academic school olympiad in informatics 2019
691
218
2116
He is not a knight for you
University academic school olympiad in informatics 2019
169
855
2117
Polyphemus' triples
University academic school olympiad in informatics 2019
278
532
2138
The Good, the Bad and the Ugly
Ural School Programming Contest 2019
1313
107
2139
Experiment with Juice
Ural School Programming Contest 2019
22
4427
2140
BitMazeCraft
Ural School Programming Contest 2019
113
1152
2141
Sasha Vilkin
Ural School Programming Contest 2019
562
248
2142
Magic
Ural School Programming Contest 2019
1147
122
2143
Victoria!
Ural School Programming Contest 2019
205
659
2144
Cleaning the Room
Ural School Programming Contest 2019
635
220
2145
Olympiad for Everyone
Ural School Programming Contest 2019
370
373
2146
Quiz Show
Ural School Programming Contest 2019
207
653
2147
City Building
Ural School Programming Contest 2019
66
1864
2148
Insane Shot
Ural School Programming Contest 2019
284
482
2149
Pigeonhole Principle
Ural School Programming Contest 2019
961
146
2150
4B and Zoo
Ural School Programming Contest 2020
93
1120
2151
Mahjong
Ural School Programming Contest 2020
115
923
2152
Tax Fees
Ural School Programming Contest 2020
94
1109
2153
Perfect Squad
Ural School Programming Contest 2020
112
946
2154
Flight on a Cannonball
Ural School Programming Contest 2020
37
2454
2155
Quadrocopter
Ural School Programming Contest 2020
103
1021
2156
Interesting Conversations
Ural School Programming Contest 2020
171
637
2157
Skydiving
Ural School Programming Contest 2020
80
1282
2158
Two progressions
Ural School Programming Contest 2021
28
1729
2159
Essay
Ural School Programming Contest 2021
36
1432
2160
Meta-statement
Ural School Programming Contest 2021
47
1155
2161
Mount & Blade
Ural School Programming Contest 2021
78
748
2162
Graphmania
Ural School Programming Contest 2021
50
1096
2163
Interview
Ural School Programming Contest 2021
42
1264
2164
Bookmaker
Ural School Programming Contest 2021
28
1733
2165
Cake Cutter
Ural School Programming Contest 2021
26
1828
2166
Two Roads
Ural School Programming Contest 2022
19
2268
2167
Cipher Message 5
Ural School Programming Contest 2022
124
491
2168
Runes in the Field
Ural School Programming Contest 2022
10
3288
2169
City Building 2
Ural School Programming Contest 2022
21
2121
2170
Experiment with Juice 2
Ural School Programming Contest 2022
30
1644
2171
Two Progressions 2
Ural School Programming Contest 2022
36
1430
2172
Meta-statement 2
Ural School Programming Contest 2022
82
715
2173
Meta-statement 3
Ural School Programming Contest 2022
73
793
2174
Dualism of Numbers
Ural School Programming Contest 2023
32
895
2175
Staircase
Ural School Programming Contest 2023
19
1296
2176
Wonderful Numbers
Ural School Programming Contest 2023
22
1176
2177
Vadim and Sudoku: XV-Pairs
Ural School Programming Contest 2023
8
2089
2178
Vadim and Sudoku: Renban
Ural School Programming Contest 2023
7
2210
2179
Need More Roads
Ural School Programming Contest 2023
6
2347
2180
Need More Tasks
Ural School Programming Contest 2023
10
1879
2181
Student, or There and Back Again
Ural School Programming Contest 2023
10
1875
2182
Broken Rum
Ural School Programming Contest 2024
38
783
2183
Good Mood
Ural School Programming Contest 2024
36
817
2184
Flint's Favorite Number
Ural School Programming Contest 2024
14
1566
2185
Journey to the Treasure
Ural School Programming Contest 2024
5
2499
2186
Hands Up!
Ural School Programming Contest 2024
6
2342
2187
Need More Gold
Ural School Programming Contest 2024
11
1789
2188
They are charging the cannon... WHY?!
Ural School Programming Contest 2024
7
2211
2189
I Don't Like These Sailors!
Ural School Programming Contest 2024
19
1296
Solved problems:
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