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Problem set. NEERC Regionals
Solved problems:
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ID
Title
Source
Authors
Difficulty
1053
Pinocchio
NEERC 2000 Central Subregional
4422
339
1054
Tower of Hanoi
NEERC 2000 Central Subregional
2344
639
1055
Combinations
NEERC 2000 Central Subregional
3589
418
1056
Centers of the Net
NEERC 2000 Central Subregional
2734
548
1057
Amount of Degrees
NEERC 2000 Central Subregional
2098
714
1058
Chocolate
NEERC 2000 Central Subregional
527
2795
1059
Expression
NEERC 2000 Central Subregional
2226
673
1133
Fibonacci Sequence
NEERC 2001 Central Subregional
2230
223
1134
Cards
NEERC 2001 Central Subregional
2543
195
1135
Recruits
NEERC 2001 Central Subregional
3094
161
1136
Parliament
NEERC 2001 Central Subregional
5005
99
1137
Bus Routes
NEERC 2001 Central Subregional
1541
322
1138
Integer Percentage
NEERC 2001 Central Subregional
2465
202
1139
City Blocks
NEERC 2001 Central Subregional
6427
78
1140
Swamp Incident
NEERC 2001 Central Subregional
1312
377
1158
Censored!
NEERC 2001 Northern Subregional
979
505
1159
Fence
NEERC 2001 Northern Subregional
654
752
1160
Network
NEERC 2001 Northern Subregional
3405
148
1161
Stripies
NEERC 2001 Northern Subregional
5439
92
1162
Currency Exchange
NEERC 2001 Northern Subregional
2477
201
1163
Chapaev
NEERC 2001 Northern Subregional
111
4129
1164
Fillword
NEERC 2001 Northern Subregional
2425
205
1165
Subnumber
NEERC 2001 Northern Subregional
531
924
1166
Funny Card Game
NEERC 2001 Northern Subregional
133
3575
1224
Spiral
NEERC 2002 Central Subregional
7632
66
1225
Flags
NEERC 2002 Central Subregional
14289
35
1226
esreveR redrO
NEERC 2002 Central Subregional
4459
113
1227
Rally Championship
NEERC 2002 Central Subregional
1663
302
1228
Array
NEERC 2002 Central Subregional
4677
108
1229
Strong Brickwork
NEERC 2002 Central Subregional
1316
381
1230
Introspective Program
NEERC 2002 Central Subregional
654
761
1231
Turing: One, Two, Three, …
NEERC 2002 Central Subregional
224
2160
1232
Asteroid Landing
NEERC 2002 Central Subregional
204
2362
1274
Fractional Arithmetic
NEERC 2003 Central Subregional
735
687
1275
Knights of the Round Table
NEERC 2003 Central Subregional
205
2379
1276
Train
NEERC 2003 Central Subregional
686
735
1277
Cops and Thieves
NEERC 2003 Central Subregional
636
792
1278
“… Connecting People”
NEERC 2003 Central Subregional
509
986
1279
Warehouse
NEERC 2003 Central Subregional
1201
422
1280
Topological Sorting
NEERC 2003 Central Subregional
3613
141
1281
River Basin
NEERC 2003 Central Subregional
362
1375
1282
Game Tree
NEERC 2003 Central Subregional
1509
337
1500
Pass Licenses
NEERC 2006 Eastern Subregional
748
637
1501
Sense of Beauty
NEERC 2006 Eastern Subregional
1803
266
1502
Domino Dots
NEERC 2006 Eastern Subregional
6544
74
1503
Polynomial
NEERC 2006 Eastern Subregional
269
1730
1504
Good Manners
NEERC 2006 Eastern Subregional
207
2224
1505
Oil Transfer
NEERC 2006 Eastern Subregional
155
2925
1506
Columns of Numbers
NEERC 2006 Eastern Subregional
3454
139
1507
Difficult Decision
NEERC 2006 Eastern Subregional
1076
444
1508
Japanese Puzzle
NEERC 2006 Eastern Subregional
288
1619
1509
Domino Recognition
NEERC 2006 Eastern Subregional
127
3523
1510
Order
NEERC 2006 Eastern Subregional
5537
87
1582
Bookmakers
NEERC 2007 Eastern Subregional
3681
122
1583
Cheese
NEERC 2007 Eastern Subregional
228
1885
1584
Pharaohs’ Secrets
NEERC 2007 Eastern Subregional
318
1367
1585
Penguins
NEERC 2007 Eastern Subregional
11809
38
1586
Threeprime Numbers
NEERC 2007 Eastern Subregional
3106
144
1587
Flying Pig
NEERC 2007 Eastern Subregional
541
814
1588
Jamaica
NEERC 2007 Eastern Subregional
1365
326
1589
Sokoban
NEERC 2007 Eastern Subregional
19
15466
1590
Bacon’s Cipher
NEERC 2007 Eastern Subregional
2382
188
1591
Abstract Thinking
NEERC 2007 Eastern Subregional
411
1065
1592
Chinese Watches
NEERC 2007 Eastern Subregional
740
598
1649
Abstractionism to the People
NEERC 2008 Eastern Subregional
51
6817
1650
Billionaires
NEERC 2008 Eastern Subregional
2246
184
1651
Shortest Subchain
NEERC 2008 Eastern Subregional
1189
347
1652
Banking Crisis
NEERC 2008 Eastern Subregional
143
2718
1653
Death Conveyor
NEERC 2008 Eastern Subregional
53
6600
1654
Cipher Message
NEERC 2008 Eastern Subregional
7029
59
1655
Somali Pirates
NEERC 2008 Eastern Subregional
214
1856
1656
Far Away Kingdom's Army
NEERC 2008 Eastern Subregional
2028
204
1657
Cube Snake
NEERC 2008 Eastern Subregional
264
1518
1658
Sum of Digits
NEERC 2008 Eastern Subregional
2068
200
1659
Regular Triangles
NEERC 2008 Eastern Subregional
633
647
1711
Code Names
NEERC 2009 Eastern Subregional
2924
132
1712
Cipher Grille
NEERC 2009 Eastern Subregional
4574
84
1713
Key Substrings
NEERC 2009 Eastern Subregional
607
627
1714
Mnemonics and Palindromes 2
NEERC 2009 Eastern Subregional
111
3200
1715
Another Ball Killer
NEERC 2009 Eastern Subregional
375
1006
1716
Alternative Solution
NEERC 2009 Eastern Subregional
506
750
1717
Eligibility Rules
NEERC 2009 Eastern Subregional
165
2212
1718
Rejudge
NEERC 2009 Eastern Subregional
1262
304
1719
Kill the Shaitan-Boss
NEERC 2009 Eastern Subregional
251
1483
1720
Summit Online Judge
NEERC 2009 Eastern Subregional
384
983
1721
Two Sides of the Same Coin
NEERC 2009 Eastern Subregional
661
577
1800
Murphy's Law
NEERC 2010 Eastern Subregional
2100
169
1801
The Revolution Cup
NEERC 2010 Eastern Subregional
54
5570
1802
Cube Puzzle
NEERC 2010 Eastern Subregional
160
2097
1803
The Czechs' Rifles
NEERC 2010 Eastern Subregional
497
703
1804
The Machinegunners in a Playoff
NEERC 2010 Eastern Subregional
876
402
1805
Chapaev and a Cipher Grille
NEERC 2010 Eastern Subregional
346
1001
1806
Mobile Telegraphs
NEERC 2010 Eastern Subregional
1858
191
1807
Cartridges for Maxim
NEERC 2010 Eastern Subregional
232
1473
1808
Chapaev at the Planet Ocean
NEERC 2010 Eastern Subregional
172
1959
1809
Chapaev and Potatoes
NEERC 2010 Eastern Subregional
593
591
1885
Passenger Comfort
NEERC 2011 Eastern Subregional
1678
195
1886
Trip 2
NEERC 2011 Eastern Subregional
148
2081
1887
Frequent Flyer Card
NEERC 2011 Eastern Subregional
299
1064
1888
Pilot Work Experience
NEERC 2011 Eastern Subregional
708
458
1889
Airport Announcements
NEERC 2011 Eastern Subregional
1091
299
1890
Money out of Thin Air
NEERC 2011 Eastern Subregional
709
457
1891
Language Ocean
NEERC 2011 Eastern Subregional
466
691
1892
Morning in Koltsovo
NEERC 2011 Eastern Subregional
363
881
1893
A380
NEERC 2011 Eastern Subregional
5617
58
1894
Non-Flying Weather
NEERC 2011 Eastern Subregional
215
1461
1895
Steaks on Board
NEERC 2011 Eastern Subregional
143
2149
1910
Titan Ruins: Hidden Entrance
NEERC 2012 Eastern Subregional
9050
33
1911
Titan Ruins: Overtaking Fire
NEERC 2012 Eastern Subregional
56
4586
1912
Titan Ruins: Passing through Walls
NEERC 2012 Eastern Subregional
230
1261
1913
Titan Ruins: Alignment of Forces
NEERC 2012 Eastern Subregional
151
1880
1914
Titan Ruins: Serial Control
NEERC 2012 Eastern Subregional
58
4451
1915
Titan Ruins: Reconstruction of Bygones
NEERC 2012 Eastern Subregional
1389
216
1916
Titan Ruins: Waiting for Stability
NEERC 2012 Eastern Subregional
82
3290
1917
Titan Ruins: Deadly Accuracy
NEERC 2012 Eastern Subregional
1291
233
1918
Titan Ruins: Artful Manipulations
NEERC 2012 Eastern Subregional
315
931
1919
Titan Ruins: Transformation of Cylinders
NEERC 2012 Eastern Subregional
136
2073
1920
Titan Ruins: the Infinite Power of Magic
NEERC 2012 Eastern Subregional
414
714
1990
Podracing
NEERC 2013 Eastern Subregional
256
1040
1991
The battle near the swamp
NEERC 2013 Eastern Subregional
5906
47
1992
CVS
NEERC 2013 Eastern Subregional
722
378
1993
This cheeseburger you don't need
NEERC 2013 Eastern Subregional
1390
198
1994
The Emperor's plan
NEERC 2013 Eastern Subregional
254
1048
1995
Illegal spices
NEERC 2013 Eastern Subregional
451
600
1996
Cipher Message 3
NEERC 2013 Eastern Subregional
214
1235
1997
Those are not the droids you're looking for
NEERC 2013 Eastern Subregional
501
541
1998
The old Padawan
NEERC 2013 Eastern Subregional
748
365
1999
The secret module
NEERC 2013 Eastern Subregional
30
6913
2012
About Grisha N.
NEERC 2014 Eastern Subregional
15273
17
2013
Neither shaken nor stirred
NEERC 2014 Eastern Subregional
261
933
2014
Zhenya moves from parents
NEERC 2014 Eastern Subregional
460
538
2015
Zhenya moves from the dormitory
NEERC 2014 Eastern Subregional
843
296
2016
Magic and Science
NEERC 2014 Eastern Subregional
19
8714
2017
Best of a bad lot
NEERC 2014 Eastern Subregional
179
1337
2018
The Debut Album
NEERC 2014 Eastern Subregional
2506
100
2019
Pair: normal and paranormal
NEERC 2014 Eastern Subregional
882
283
2020
Traffic Jam in Flower Town
NEERC 2014 Eastern Subregional
1626
154
2021
Scarily interesting!
NEERC 2014 Eastern Subregional
554
448
2022
Riding a Toad
NEERC 2014 Eastern Subregional
58
3717
2023
Donald is a postman
NEERC 2014 Eastern Subregional
6612
38
2074
Timus problems classifier
Qualification of Eastern Subregional 2015
217
970
2075
Take care of your eyebrows!
Qualification of Eastern Subregional 2015
70
2752
2076
Vasiana
Qualification of Eastern Subregional 2015
18
7863
2077
Reductions
Qualification of Eastern Subregional 2015
18
7863
2190
Match of the Millennium
ICPC Ural Regional Contest Qualifier 2022
11
1604
2191
Piecewise Linear Functions
ICPC Ural Regional Contest Qualifier 2022
7
1973
2192
My Grandfather
ICPC Ural Regional Contest Qualifier 2022
14
1404
2193
Old Barabarian Rap
ICPC Ural Regional Contest Qualifier 2022
6
2097
2194
Snakes&Snakes
ICPC Ural Regional Contest Qualifier 2023
27
911
2195
Binary Trees
ICPC Ural Regional Contest Qualifier 2023
9
1773
2196
Apocalypse
ICPC Ural Regional Contest Qualifier 2023
6
2094
2197
Work is not a wolf; a wolf is to walk
ICPC Ural Regional Contest Qualifier 2024
4
2407
2198
Deep Understanding
ICPC Ural Regional Contest Qualifier 2024
12
1527
2199
Company Question
ICPC Ural Regional Contest Qualifier 2024
10
1685
Solved problems:
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