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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
4433
341
1054
Tower of Hanoi
NEERC 2000 Central Subregional
2357
640
1055
Combinations
NEERC 2000 Central Subregional
3596
420
1056
Centers of the Net
NEERC 2000 Central Subregional
2744
550
1057
Amount of Degrees
NEERC 2000 Central Subregional
2108
715
1058
Chocolate
NEERC 2000 Central Subregional
528
2810
1059
Expression
NEERC 2000 Central Subregional
2231
676
1133
Fibonacci Sequence
NEERC 2001 Central Subregional
2239
223
1134
Cards
NEERC 2001 Central Subregional
2550
196
1135
Recruits
NEERC 2001 Central Subregional
3107
161
1136
Parliament
NEERC 2001 Central Subregional
5025
100
1137
Bus Routes
NEERC 2001 Central Subregional
1548
323
1138
Integer Percentage
NEERC 2001 Central Subregional
2476
202
1139
City Blocks
NEERC 2001 Central Subregional
6448
78
1140
Swamp Incident
NEERC 2001 Central Subregional
1315
379
1158
Censored!
NEERC 2001 Northern Subregional
985
506
1159
Fence
NEERC 2001 Northern Subregional
656
756
1160
Network
NEERC 2001 Northern Subregional
3476
146
1161
Stripies
NEERC 2001 Northern Subregional
5452
92
1162
Currency Exchange
NEERC 2001 Northern Subregional
2551
196
1163
Chapaev
NEERC 2001 Northern Subregional
113
4091
1164
Fillword
NEERC 2001 Northern Subregional
2436
206
1165
Subnumber
NEERC 2001 Northern Subregional
534
925
1166
Funny Card Game
NEERC 2001 Northern Subregional
133
3599
1224
Spiral
NEERC 2002 Central Subregional
7659
66
1225
Flags
NEERC 2002 Central Subregional
14420
35
1226
esreveR redrO
NEERC 2002 Central Subregional
4469
114
1227
Rally Championship
NEERC 2002 Central Subregional
1677
302
1228
Array
NEERC 2002 Central Subregional
4703
108
1229
Strong Brickwork
NEERC 2002 Central Subregional
1322
382
1230
Introspective Program
NEERC 2002 Central Subregional
659
761
1231
Turing: One, Two, Three, …
NEERC 2002 Central Subregional
225
2166
1232
Asteroid Landing
NEERC 2002 Central Subregional
204
2378
1274
Fractional Arithmetic
NEERC 2003 Central Subregional
736
690
1275
Knights of the Round Table
NEERC 2003 Central Subregional
205
2396
1276
Train
NEERC 2003 Central Subregional
690
736
1277
Cops and Thieves
NEERC 2003 Central Subregional
642
790
1278
“… Connecting People”
NEERC 2003 Central Subregional
509
992
1279
Warehouse
NEERC 2003 Central Subregional
1206
424
1280
Topological Sorting
NEERC 2003 Central Subregional
3629
142
1281
River Basin
NEERC 2003 Central Subregional
363
1381
1282
Game Tree
NEERC 2003 Central Subregional
1518
337
1500
Pass Licenses
NEERC 2006 Eastern Subregional
750
640
1501
Sense of Beauty
NEERC 2006 Eastern Subregional
1816
266
1502
Domino Dots
NEERC 2006 Eastern Subregional
6562
74
1503
Polynomial
NEERC 2006 Eastern Subregional
270
1737
1504
Good Manners
NEERC 2006 Eastern Subregional
208
2231
1505
Oil Transfer
NEERC 2006 Eastern Subregional
158
2895
1506
Columns of Numbers
NEERC 2006 Eastern Subregional
3463
140
1507
Difficult Decision
NEERC 2006 Eastern Subregional
1089
442
1508
Japanese Puzzle
NEERC 2006 Eastern Subregional
291
1616
1509
Domino Recognition
NEERC 2006 Eastern Subregional
129
3499
1510
Order
NEERC 2006 Eastern Subregional
5551
87
1582
Bookmakers
NEERC 2007 Eastern Subregional
3693
122
1583
Cheese
NEERC 2007 Eastern Subregional
230
1885
1584
Pharaohs’ Secrets
NEERC 2007 Eastern Subregional
319
1375
1585
Penguins
NEERC 2007 Eastern Subregional
11863
38
1586
Threeprime Numbers
NEERC 2007 Eastern Subregional
3127
144
1587
Flying Pig
NEERC 2007 Eastern Subregional
542
820
1588
Jamaica
NEERC 2007 Eastern Subregional
1375
327
1589
Sokoban
NEERC 2007 Eastern Subregional
19
15602
1590
Bacon’s Cipher
NEERC 2007 Eastern Subregional
2402
188
1591
Abstract Thinking
NEERC 2007 Eastern Subregional
414
1067
1592
Chinese Watches
NEERC 2007 Eastern Subregional
745
599
1649
Abstractionism to the People
NEERC 2008 Eastern Subregional
51
6885
1650
Billionaires
NEERC 2008 Eastern Subregional
2270
184
1651
Shortest Subchain
NEERC 2008 Eastern Subregional
1210
344
1652
Banking Crisis
NEERC 2008 Eastern Subregional
144
2727
1653
Death Conveyor
NEERC 2008 Eastern Subregional
53
6667
1654
Cipher Message
NEERC 2008 Eastern Subregional
7062
59
1655
Somali Pirates
NEERC 2008 Eastern Subregional
215
1867
1656
Far Away Kingdom's Army
NEERC 2008 Eastern Subregional
2041
205
1657
Cube Snake
NEERC 2008 Eastern Subregional
264
1533
1658
Sum of Digits
NEERC 2008 Eastern Subregional
2083
201
1659
Regular Triangles
NEERC 2008 Eastern Subregional
637
649
1711
Code Names
NEERC 2009 Eastern Subregional
2936
133
1712
Cipher Grille
NEERC 2009 Eastern Subregional
4594
85
1713
Key Substrings
NEERC 2009 Eastern Subregional
611
630
1714
Mnemonics and Palindromes 2
NEERC 2009 Eastern Subregional
112
3209
1715
Another Ball Killer
NEERC 2009 Eastern Subregional
377
1012
1716
Alternative Solution
NEERC 2009 Eastern Subregional
514
747
1717
Eligibility Rules
NEERC 2009 Eastern Subregional
166
2225
1718
Rejudge
NEERC 2009 Eastern Subregional
1270
306
1719
Kill the Shaitan-Boss
NEERC 2009 Eastern Subregional
253
1489
1720
Summit Online Judge
NEERC 2009 Eastern Subregional
387
986
1721
Two Sides of the Same Coin
NEERC 2009 Eastern Subregional
667
578
1800
Murphy's Law
NEERC 2010 Eastern Subregional
2108
170
1801
The Revolution Cup
NEERC 2010 Eastern Subregional
54
5642
1802
Cube Puzzle
NEERC 2010 Eastern Subregional
160
2124
1803
The Czechs' Rifles
NEERC 2010 Eastern Subregional
500
708
1804
The Machinegunners in a Playoff
NEERC 2010 Eastern Subregional
883
404
1805
Chapaev and a Cipher Grille
NEERC 2010 Eastern Subregional
348
1009
1806
Mobile Telegraphs
NEERC 2010 Eastern Subregional
1894
190
1807
Cartridges for Maxim
NEERC 2010 Eastern Subregional
233
1486
1808
Chapaev at the Planet Ocean
NEERC 2010 Eastern Subregional
174
1962
1809
Chapaev and Potatoes
NEERC 2010 Eastern Subregional
598
594
1885
Passenger Comfort
NEERC 2011 Eastern Subregional
1758
189
1886
Trip 2
NEERC 2011 Eastern Subregional
149
2098
1887
Frequent Flyer Card
NEERC 2011 Eastern Subregional
303
1066
1888
Pilot Work Experience
NEERC 2011 Eastern Subregional
717
459
1889
Airport Announcements
NEERC 2011 Eastern Subregional
1097
301
1890
Money out of Thin Air
NEERC 2011 Eastern Subregional
715
460
1891
Language Ocean
NEERC 2011 Eastern Subregional
468
698
1892
Morning in Koltsovo
NEERC 2011 Eastern Subregional
367
885
1893
A380
NEERC 2011 Eastern Subregional
5638
59
1894
Non-Flying Weather
NEERC 2011 Eastern Subregional
219
1457
1895
Steaks on Board
NEERC 2011 Eastern Subregional
144
2166
1910
Titan Ruins: Hidden Entrance
NEERC 2012 Eastern Subregional
9097
34
1911
Titan Ruins: Overtaking Fire
NEERC 2012 Eastern Subregional
57
4592
1912
Titan Ruins: Passing through Walls
NEERC 2012 Eastern Subregional
232
1271
1913
Titan Ruins: Alignment of Forces
NEERC 2012 Eastern Subregional
152
1899
1914
Titan Ruins: Serial Control
NEERC 2012 Eastern Subregional
58
4524
1915
Titan Ruins: Reconstruction of Bygones
NEERC 2012 Eastern Subregional
1397
219
1916
Titan Ruins: Waiting for Stability
NEERC 2012 Eastern Subregional
82
3344
1917
Titan Ruins: Deadly Accuracy
NEERC 2012 Eastern Subregional
1296
236
1918
Titan Ruins: Artful Manipulations
NEERC 2012 Eastern Subregional
316
944
1919
Titan Ruins: Transformation of Cylinders
NEERC 2012 Eastern Subregional
136
2107
1920
Titan Ruins: the Infinite Power of Magic
NEERC 2012 Eastern Subregional
419
717
1990
Podracing
NEERC 2013 Eastern Subregional
257
1055
1991
The battle near the swamp
NEERC 2013 Eastern Subregional
5937
47
1992
CVS
NEERC 2013 Eastern Subregional
731
380
1993
This cheeseburger you don't need
NEERC 2013 Eastern Subregional
1402
200
1994
The Emperor's plan
NEERC 2013 Eastern Subregional
258
1051
1995
Illegal spices
NEERC 2013 Eastern Subregional
456
605
1996
Cipher Message 3
NEERC 2013 Eastern Subregional
214
1258
1997
Those are not the droids you're looking for
NEERC 2013 Eastern Subregional
506
546
1998
The old Padawan
NEERC 2013 Eastern Subregional
754
369
1999
The secret module
NEERC 2013 Eastern Subregional
30
7043
2012
About Grisha N.
NEERC 2014 Eastern Subregional
15489
17
2013
Neither shaken nor stirred
NEERC 2014 Eastern Subregional
262
949
2014
Zhenya moves from parents
NEERC 2014 Eastern Subregional
468
540
2015
Zhenya moves from the dormitory
NEERC 2014 Eastern Subregional
866
295
2016
Magic and Science
NEERC 2014 Eastern Subregional
21
8324
2017
Best of a bad lot
NEERC 2014 Eastern Subregional
180
1358
2018
The Debut Album
NEERC 2014 Eastern Subregional
2524
102
2019
Pair: normal and paranormal
NEERC 2014 Eastern Subregional
886
288
2020
Traffic Jam in Flower Town
NEERC 2014 Eastern Subregional
1636
157
2021
Scarily interesting!
NEERC 2014 Eastern Subregional
562
451
2022
Riding a Toad
NEERC 2014 Eastern Subregional
58
3795
2023
Donald is a postman
NEERC 2014 Eastern Subregional
6656
39
2074
Timus problems classifier
Qualification of Eastern Subregional 2015
219
986
2075
Take care of your eyebrows!
Qualification of Eastern Subregional 2015
70
2822
2076
Vasiana
Qualification of Eastern Subregional 2015
18
8062
2077
Reductions
Qualification of Eastern Subregional 2015
19
7784
2190
Match of the Millennium
ICPC Ural Regional Contest Qualifier 2022
19
1400
2191
Piecewise Linear Functions
ICPC Ural Regional Contest Qualifier 2022
8
2248
2192
My Grandfather
ICPC Ural Regional Contest Qualifier 2022
21
1310
2193
Old Barabarian Rap
ICPC Ural Regional Contest Qualifier 2022
13
1759
2194
Snakes&Snakes
ICPC Ural Regional Contest Qualifier 2023
37
864
2195
Binary Trees
ICPC Ural Regional Contest Qualifier 2023
10
2030
2196
Apocalypse
ICPC Ural Regional Contest Qualifier 2023
8
2245
2197
Work is not a wolf; a wolf is to walk
ICPC Ural Regional Contest Qualifier 2024
8
2256
2198
Deep Understanding
ICPC Ural Regional Contest Qualifier 2024
18
1447
2199
Company Question
ICPC Ural Regional Contest Qualifier 2024
15
1624
Solved problems:
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