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Problem set. NEERC Subregionals
Solved problems:
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ID
Title
Source
Authors
Difficulty
1053
Pinocchio
NEERC 2000 Central Subregional
4141
311
1054
Hanoi Tower
NEERC 2000 Central Subregional
1971
651
1055
Combinations
NEERC 2000 Central Subregional
3278
392
1056
Computer Net
NEERC 2000 Central Subregional
2429
529
1057
Amount of Degrees
NEERC 2000 Central Subregional
1820
705
1058
Chocolate
NEERC 2000 Central Subregional
435
2893
1059
Expression
NEERC 2000 Central Subregional
2055
625
1133
Fibonacci Sequence
NEERC 2001 Central Subregional
2330
184
1134
Cards
NEERC 2001 Central Subregional
2399
178
1135
Recruits
NEERC 2001 Central Subregional
2616
164
1136
Parliament
NEERC 2001 Central Subregional
4276
100
1137
Bus Routes
NEERC 2001 Central Subregional
1426
299
1138
Integer Percentage
NEERC 2001 Central Subregional
2151
199
1139
City Blocks
NEERC 2001 Central Subregional
5430
79
1140
Swamp Incident
NEERC 2001 Central Subregional
1161
367
1158
Censored!
NEERC 2001 Northern Subregional
847
502
1159
Fence
NEERC 2001 Northern Subregional
581
729
1160
Network
NEERC 2001 Northern Subregional
1393
312
1161
Stripies
NEERC 2001 Northern Subregional
4664
92
1162
Currency Exchange
NEERC 2001 Northern Subregional
917
465
1163
Chapaev
NEERC 2001 Northern Subregional
214
1922
1164
Fillword
NEERC 2001 Northern Subregional
2145
200
1165
Subnumber
NEERC 2001 Northern Subregional
488
865
1166
Funny Card Game
NEERC 2001 Northern Subregional
116
3522
1224
Spiral
NEERC 2002 Central Subregional
6332
69
1225
Flags
NEERC 2002 Central Subregional
11124
39
1226
esreveR redrO
NEERC 2002 Central Subregional
3854
113
1227
Rally Championship
NEERC 2002 Central Subregional
1381
314
1228
Array
NEERC 2002 Central Subregional
4179
104
1229
Strong Brickwork
NEERC 2002 Central Subregional
1118
388
1230
Introspective Program
NEERC 2002 Central Subregional
593
725
1231
Turing: One, Two, Three, …
NEERC 2002 Central Subregional
196
2122
1232
Asteroid Landing
NEERC 2002 Central Subregional
185
2242
1274
Fractional Arithmetic
NEERC 2003 Central Subregional
638
686
1275
Knights of the Round Table
NEERC 2003 Central Subregional
158
2644
1276
Train
NEERC 2003 Central Subregional
559
781
1277
Cops and Thieves
NEERC 2003 Central Subregional
557
783
1278
“… Connecting People”
NEERC 2003 Central Subregional
447
972
1279
Warehouse
NEERC 2003 Central Subregional
1056
417
1280
Topological Sorting
NEERC 2003 Central Subregional
2937
151
1281
River Basin
NEERC 2003 Central Subregional
312
1380
1282
Game Tree
NEERC 2003 Central Subregional
1279
345
1500
Pass Licenses
NEERC 2006 Eastern Subregional
633
640
1501
Sense of Beauty
NEERC 2006 Eastern Subregional
1503
272
1502
Domino Dots
NEERC 2006 Eastern Subregional
5363
77
1503
Polynomial
NEERC 2006 Eastern Subregional
223
1765
1504
Good Manners
NEERC 2006 Eastern Subregional
172
2259
1505
Oil Transfer
NEERC 2006 Eastern Subregional
130
2937
1506
Columns of Numbers
NEERC 2006 Eastern Subregional
2556
160
1507
Difficult Decision
NEERC 2006 Eastern Subregional
955
426
1508
Japanese Puzzle
NEERC 2006 Eastern Subregional
236
1672
1509
Domino Recognition
NEERC 2006 Eastern Subregional
103
3639
1510
Order
NEERC 2006 Eastern Subregional
4522
91
1582
Bookmakers
NEERC 2007 Eastern Subregional
3175
117
1583
Cheese
NEERC 2007 Eastern Subregional
201
1765
1584
Pharaohs’ Secrets
NEERC 2007 Eastern Subregional
297
1213
1585
Penguins
NEERC 2007 Eastern Subregional
8693
43
1586
Threeprime Numbers
NEERC 2007 Eastern Subregional
2377
156
1587
Flying Pig
NEERC 2007 Eastern Subregional
450
810
1588
Jamaica
NEERC 2007 Eastern Subregional
1154
320
1589
Sokoban
NEERC 2007 Eastern Subregional
8
20691
1590
Bacon’s Cipher
NEERC 2007 Eastern Subregional
1641
226
1591
Abstract Thinking
NEERC 2007 Eastern Subregional
365
993
1592
Chinese Watches
NEERC 2007 Eastern Subregional
622
589
1649
Abstractionism to the People
NEERC 2008 Eastern Subregional
39
6842
1650
Billionaires
NEERC 2008 Eastern Subregional
669
494
1651
Shortest Subchain
NEERC 2008 Eastern Subregional
952
348
1652
Banking Crisis
NEERC 2008 Eastern Subregional
122
2540
1653
Death Conveyor
NEERC 2008 Eastern Subregional
38
6984
1654
Cipher Message
NEERC 2008 Eastern Subregional
5328
63
1655
Somali Pirates
NEERC 2008 Eastern Subregional
157
2007
1656
Far Away Kingdom's Army
NEERC 2008 Eastern Subregional
1711
195
1657
Cube Snake
NEERC 2008 Eastern Subregional
240
1341
1658
Sum of Digits
NEERC 2008 Eastern Subregional
1357
245
1659
Regular Triangles
NEERC 2008 Eastern Subregional
533
617
1711
Code Names
NEERC 2009 Eastern Subregional
2437
124
1712
Cipher Grille
NEERC 2009 Eastern Subregional
3832
79
1713
Key Substrings
NEERC 2009 Eastern Subregional
501
592
1714
Mnemonics and Palindromes 2
NEERC 2009 Eastern Subregional
99
2776
1715
Another Ball Killer
NEERC 2009 Eastern Subregional
318
923
1716
Alternative Solution
NEERC 2009 Eastern Subregional
393
751
1717
Eligibility Rules
NEERC 2009 Eastern Subregional
117
2383
1718
Rejudge
NEERC 2009 Eastern Subregional
1104
272
1719
Kill the Shaitan-Boss
NEERC 2009 Eastern Subregional
216
1339
1720
Summit Online Judge
NEERC 2009 Eastern Subregional
334
880
1721
Two Sides of the Same Coin
NEERC 2009 Eastern Subregional
552
538
1800
Murphy's Law
NEERC 2010 Eastern Subregional
1422
187
1801
The Revolution Cup
NEERC 2010 Eastern Subregional
41
5249
1802
Cube Puzzle
NEERC 2010 Eastern Subregional
145
1727
1803
The Czechs' Rifles
NEERC 2010 Eastern Subregional
413
633
1804
The Machinegunners in a Playoff
NEERC 2010 Eastern Subregional
778
340
1805
Chapaev and a Cipher Grille
NEERC 2010 Eastern Subregional
302
858
1806
Mobile Telegraphs
NEERC 2010 Eastern Subregional
434
603
1807
Cartridges for Maxim
NEERC 2010 Eastern Subregional
194
1312
1808
Chapaev at the Planet Ocean
NEERC 2010 Eastern Subregional
154
1632
1809
Chapaev and Potatoes
NEERC 2010 Eastern Subregional
504
521
1885
Passenger Comfort
NEERC 2011 Eastern Subregional
1184
198
1886
Trip 2
NEERC 2011 Eastern Subregional
125
1750
1887
Frequent Flyer Card
NEERC 2011 Eastern Subregional
211
1069
1888
Pilot Work Experience
NEERC 2011 Eastern Subregional
572
406
1889
Airport Announcements
NEERC 2011 Eastern Subregional
899
260
1890
Money out of Thin Air
NEERC 2011 Eastern Subregional
511
453
1891
Language Ocean
NEERC 2011 Eastern Subregional
406
568
1892
Morning in Koltsovo
NEERC 2011 Eastern Subregional
319
718
1893
A380
NEERC 2011 Eastern Subregional
4217
56
1894
Non-Flying Weather
NEERC 2011 Eastern Subregional
130
1687
1895
Steaks on Board
NEERC 2011 Eastern Subregional
94
2271
1910
Titan Ruins: Hidden Entrance
NEERC 2012 Eastern Subregional
6138
34
1911
Titan Ruins: Overtaking Fire
NEERC 2012 Eastern Subregional
52
3330
1912
Titan Ruins: Passing through Walls
NEERC 2012 Eastern Subregional
233
850
1913
Titan Ruins: Alignment of Forces
NEERC 2012 Eastern Subregional
135
1424
1914
Titan Ruins: Serial Control
NEERC 2012 Eastern Subregional
45
3754
1915
Titan Ruins: Reconstruction of Bygones
NEERC 2012 Eastern Subregional
1103
186
1916
Titan Ruins: Waiting for Stability
NEERC 2012 Eastern Subregional
72
2518
1917
Titan Ruins: Deadly Accuracy
NEERC 2012 Eastern Subregional
1034
198
1918
Titan Ruins: Artful Manipulations
NEERC 2012 Eastern Subregional
257
773
1919
Titan Ruins: Transformation of Cylinders
NEERC 2012 Eastern Subregional
109
1735
1920
Titan Ruins: the Infinite Power of Magic
NEERC 2012 Eastern Subregional
361
557
1990
Podracing
NEERC 2013 Eastern Subregional
216
782
1991
The battle near the swamp
NEERC 2013 Eastern Subregional
3824
46
1992
CVS
NEERC 2013 Eastern Subregional
513
338
1993
This cheeseburger you don't need
NEERC 2013 Eastern Subregional
1041
168
1994
The Emperor's plan
NEERC 2013 Eastern Subregional
203
830
1995
Illegal spices
NEERC 2013 Eastern Subregional
377
457
1996
Cipher Message 3
NEERC 2013 Eastern Subregional
179
935
1997
Those are not the droids you're looking for
NEERC 2013 Eastern Subregional
406
425
1998
The old Padawan
NEERC 2013 Eastern Subregional
594
293
1999
The secret module
NEERC 2013 Eastern Subregional
25
5050
2012
About Grisha N.
NEERC 2014 Eastern Subregional
8479
18
2013
Neither shaken nor stirred
NEERC 2014 Eastern Subregional
203
703
2014
Zhenya moves from parents
NEERC 2014 Eastern Subregional
334
435
2015
Zhenya moves from the dormitory
NEERC 2014 Eastern Subregional
635
232
2016
Magic and Science
NEERC 2014 Eastern Subregional
15
5985
2017
Best of a bad lot
NEERC 2014 Eastern Subregional
138
1011
2018
The Debut Album
NEERC 2014 Eastern Subregional
1499
99
2019
Pair: normal and paranormal
NEERC 2014 Eastern Subregional
689
214
2020
Traffic Jam in Flower Town
NEERC 2014 Eastern Subregional
1128
132
2021
Scarily interesting!
NEERC 2014 Eastern Subregional
426
343
2022
Riding a Toad
NEERC 2014 Eastern Subregional
46
2672
2023
Donald is a postman
NEERC 2014 Eastern Subregional
4132
36
2074
Timus problems classifier
Qualification of eastern subregional contest 2015
158
670
2075
Take care of your eyebrows!
Qualification of eastern subregional contest 2015
37
2395
2076
Vasiana
Qualification of eastern subregional contest 2015
8
6255
2077
Reductions
Qualification of eastern subregional contest 2015
13
4895
Solved problems:
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