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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
2354
640
1055
Combinations
NEERC 2000 Central Subregional
3594
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
2808
1059
Expression
NEERC 2000 Central Subregional
2231
676
1133
Fibonacci Sequence
NEERC 2001 Central Subregional
2238
223
1134
Cards
NEERC 2001 Central Subregional
2549
196
1135
Recruits
NEERC 2001 Central Subregional
3105
161
1136
Parliament
NEERC 2001 Central Subregional
5023
100
1137
Bus Routes
NEERC 2001 Central Subregional
1547
323
1138
Integer Percentage
NEERC 2001 Central Subregional
2475
202
1139
City Blocks
NEERC 2001 Central Subregional
6447
78
1140
Swamp Incident
NEERC 2001 Central Subregional
1315
379
1158
Censored!
NEERC 2001 Northern Subregional
984
506
1159
Fence
NEERC 2001 Northern Subregional
656
755
1160
Network
NEERC 2001 Northern Subregional
3473
146
1161
Stripies
NEERC 2001 Northern Subregional
5452
92
1162
Currency Exchange
NEERC 2001 Northern Subregional
2546
197
1163
Chapaev
NEERC 2001 Northern Subregional
113
4088
1164
Fillword
NEERC 2001 Northern Subregional
2434
206
1165
Subnumber
NEERC 2001 Northern Subregional
534
924
1166
Funny Card Game
NEERC 2001 Northern Subregional
133
3597
1224
Spiral
NEERC 2002 Central Subregional
7657
66
1225
Flags
NEERC 2002 Central Subregional
14412
35
1226
esreveR redrO
NEERC 2002 Central Subregional
4469
114
1227
Rally Championship
NEERC 2002 Central Subregional
1675
302
1228
Array
NEERC 2002 Central Subregional
4694
108
1229
Strong Brickwork
NEERC 2002 Central Subregional
1321
382
1230
Introspective Program
NEERC 2002 Central Subregional
659
760
1231
Turing: One, Two, Three, …
NEERC 2002 Central Subregional
225
2164
1232
Asteroid Landing
NEERC 2002 Central Subregional
204
2376
1274
Fractional Arithmetic
NEERC 2003 Central Subregional
736
690
1275
Knights of the Round Table
NEERC 2003 Central Subregional
205
2394
1276
Train
NEERC 2003 Central Subregional
690
735
1277
Cops and Thieves
NEERC 2003 Central Subregional
642
789
1278
“… Connecting People”
NEERC 2003 Central Subregional
509
992
1279
Warehouse
NEERC 2003 Central Subregional
1204
424
1280
Topological Sorting
NEERC 2003 Central Subregional
3629
141
1281
River Basin
NEERC 2003 Central Subregional
363
1380
1282
Game Tree
NEERC 2003 Central Subregional
1518
337
1500
Pass Licenses
NEERC 2006 Eastern Subregional
750
639
1501
Sense of Beauty
NEERC 2006 Eastern Subregional
1814
266
1502
Domino Dots
NEERC 2006 Eastern Subregional
6561
74
1503
Polynomial
NEERC 2006 Eastern Subregional
270
1735
1504
Good Manners
NEERC 2006 Eastern Subregional
208
2229
1505
Oil Transfer
NEERC 2006 Eastern Subregional
158
2892
1506
Columns of Numbers
NEERC 2006 Eastern Subregional
3462
140
1507
Difficult Decision
NEERC 2006 Eastern Subregional
1087
443
1508
Japanese Puzzle
NEERC 2006 Eastern Subregional
291
1614
1509
Domino Recognition
NEERC 2006 Eastern Subregional
129
3496
1510
Order
NEERC 2006 Eastern Subregional
5551
87
1582
Bookmakers
NEERC 2007 Eastern Subregional
3693
122
1583
Cheese
NEERC 2007 Eastern Subregional
230
1884
1584
Pharaohs’ Secrets
NEERC 2007 Eastern Subregional
319
1374
1585
Penguins
NEERC 2007 Eastern Subregional
11849
38
1586
Threeprime Numbers
NEERC 2007 Eastern Subregional
3126
144
1587
Flying Pig
NEERC 2007 Eastern Subregional
542
819
1588
Jamaica
NEERC 2007 Eastern Subregional
1375
326
1589
Sokoban
NEERC 2007 Eastern Subregional
19
15587
1590
Bacon’s Cipher
NEERC 2007 Eastern Subregional
2400
188
1591
Abstract Thinking
NEERC 2007 Eastern Subregional
414
1066
1592
Chinese Watches
NEERC 2007 Eastern Subregional
745
599
1649
Abstractionism to the People
NEERC 2008 Eastern Subregional
51
6878
1650
Billionaires
NEERC 2008 Eastern Subregional
2268
184
1651
Shortest Subchain
NEERC 2008 Eastern Subregional
1209
344
1652
Banking Crisis
NEERC 2008 Eastern Subregional
144
2724
1653
Death Conveyor
NEERC 2008 Eastern Subregional
53
6660
1654
Cipher Message
NEERC 2008 Eastern Subregional
7058
59
1655
Somali Pirates
NEERC 2008 Eastern Subregional
215
1865
1656
Far Away Kingdom's Army
NEERC 2008 Eastern Subregional
2038
205
1657
Cube Snake
NEERC 2008 Eastern Subregional
264
1531
1658
Sum of Digits
NEERC 2008 Eastern Subregional
2081
201
1659
Regular Triangles
NEERC 2008 Eastern Subregional
636
649
1711
Code Names
NEERC 2009 Eastern Subregional
2936
133
1712
Cipher Grille
NEERC 2009 Eastern Subregional
4593
85
1713
Key Substrings
NEERC 2009 Eastern Subregional
611
630
1714
Mnemonics and Palindromes 2
NEERC 2009 Eastern Subregional
112
3205
1715
Another Ball Killer
NEERC 2009 Eastern Subregional
377
1011
1716
Alternative Solution
NEERC 2009 Eastern Subregional
514
746
1717
Eligibility Rules
NEERC 2009 Eastern Subregional
166
2222
1718
Rejudge
NEERC 2009 Eastern Subregional
1268
306
1719
Kill the Shaitan-Boss
NEERC 2009 Eastern Subregional
253
1487
1720
Summit Online Judge
NEERC 2009 Eastern Subregional
386
988
1721
Two Sides of the Same Coin
NEERC 2009 Eastern Subregional
667
578
1800
Murphy's Law
NEERC 2010 Eastern Subregional
2107
170
1801
The Revolution Cup
NEERC 2010 Eastern Subregional
54
5634
1802
Cube Puzzle
NEERC 2010 Eastern Subregional
160
2121
1803
The Czechs' Rifles
NEERC 2010 Eastern Subregional
500
707
1804
The Machinegunners in a Playoff
NEERC 2010 Eastern Subregional
882
404
1805
Chapaev and a Cipher Grille
NEERC 2010 Eastern Subregional
348
1007
1806
Mobile Telegraphs
NEERC 2010 Eastern Subregional
1893
189
1807
Cartridges for Maxim
NEERC 2010 Eastern Subregional
233
1484
1808
Chapaev at the Planet Ocean
NEERC 2010 Eastern Subregional
174
1960
1809
Chapaev and Potatoes
NEERC 2010 Eastern Subregional
598
593
1885
Passenger Comfort
NEERC 2011 Eastern Subregional
1742
190
1886
Trip 2
NEERC 2011 Eastern Subregional
149
2095
1887
Frequent Flyer Card
NEERC 2011 Eastern Subregional
301
1071
1888
Pilot Work Experience
NEERC 2011 Eastern Subregional
717
458
1889
Airport Announcements
NEERC 2011 Eastern Subregional
1097
301
1890
Money out of Thin Air
NEERC 2011 Eastern Subregional
714
460
1891
Language Ocean
NEERC 2011 Eastern Subregional
468
697
1892
Morning in Koltsovo
NEERC 2011 Eastern Subregional
367
883
1893
A380
NEERC 2011 Eastern Subregional
5635
59
1894
Non-Flying Weather
NEERC 2011 Eastern Subregional
219
1454
1895
Steaks on Board
NEERC 2011 Eastern Subregional
144
2163
1910
Titan Ruins: Hidden Entrance
NEERC 2012 Eastern Subregional
9087
34
1911
Titan Ruins: Overtaking Fire
NEERC 2012 Eastern Subregional
57
4584
1912
Titan Ruins: Passing through Walls
NEERC 2012 Eastern Subregional
231
1274
1913
Titan Ruins: Alignment of Forces
NEERC 2012 Eastern Subregional
152
1896
1914
Titan Ruins: Serial Control
NEERC 2012 Eastern Subregional
58
4517
1915
Titan Ruins: Reconstruction of Bygones
NEERC 2012 Eastern Subregional
1397
218
1916
Titan Ruins: Waiting for Stability
NEERC 2012 Eastern Subregional
82
3338
1917
Titan Ruins: Deadly Accuracy
NEERC 2012 Eastern Subregional
1296
235
1918
Titan Ruins: Artful Manipulations
NEERC 2012 Eastern Subregional
316
942
1919
Titan Ruins: Transformation of Cylinders
NEERC 2012 Eastern Subregional
136
2104
1920
Titan Ruins: the Infinite Power of Magic
NEERC 2012 Eastern Subregional
418
718
1990
Podracing
NEERC 2013 Eastern Subregional
257
1053
1991
The battle near the swamp
NEERC 2013 Eastern Subregional
5934
47
1992
CVS
NEERC 2013 Eastern Subregional
728
381
1993
This cheeseburger you don't need
NEERC 2013 Eastern Subregional
1399
200
1994
The Emperor's plan
NEERC 2013 Eastern Subregional
258
1049
1995
Illegal spices
NEERC 2013 Eastern Subregional
456
603
1996
Cipher Message 3
NEERC 2013 Eastern Subregional
214
1255
1997
Those are not the droids you're looking for
NEERC 2013 Eastern Subregional
506
545
1998
The old Padawan
NEERC 2013 Eastern Subregional
754
368
1999
The secret module
NEERC 2013 Eastern Subregional
30
7029
2012
About Grisha N.
NEERC 2014 Eastern Subregional
15395
17
2013
Neither shaken nor stirred
NEERC 2014 Eastern Subregional
262
947
2014
Zhenya moves from parents
NEERC 2014 Eastern Subregional
467
540
2015
Zhenya moves from the dormitory
NEERC 2014 Eastern Subregional
865
294
2016
Magic and Science
NEERC 2014 Eastern Subregional
21
8306
2017
Best of a bad lot
NEERC 2014 Eastern Subregional
180
1355
2018
The Debut Album
NEERC 2014 Eastern Subregional
2523
102
2019
Pair: normal and paranormal
NEERC 2014 Eastern Subregional
886
287
2020
Traffic Jam in Flower Town
NEERC 2014 Eastern Subregional
1635
157
2021
Scarily interesting!
NEERC 2014 Eastern Subregional
561
451
2022
Riding a Toad
NEERC 2014 Eastern Subregional
58
3787
2023
Donald is a postman
NEERC 2014 Eastern Subregional
6649
39
2074
Timus problems classifier
Qualification of Eastern Subregional 2015
218
987
2075
Take care of your eyebrows!
Qualification of Eastern Subregional 2015
70
2814
2076
Vasiana
Qualification of Eastern Subregional 2015
18
8041
2077
Reductions
Qualification of Eastern Subregional 2015
19
7764
2190
Match of the Millennium
ICPC Ural Regional Contest Qualifier 2022
19
1375
2191
Piecewise Linear Functions
ICPC Ural Regional Contest Qualifier 2022
8
2207
2192
My Grandfather
ICPC Ural Regional Contest Qualifier 2022
20
1329
2193
Old Barabarian Rap
ICPC Ural Regional Contest Qualifier 2022
13
1727
2194
Snakes&Snakes
ICPC Ural Regional Contest Qualifier 2023
37
848
2195
Binary Trees
ICPC Ural Regional Contest Qualifier 2023
10
1994
2196
Apocalypse
ICPC Ural Regional Contest Qualifier 2023
8
2204
2197
Work is not a wolf; a wolf is to walk
ICPC Ural Regional Contest Qualifier 2024
7
2345
2198
Deep Understanding
ICPC Ural Regional Contest Qualifier 2024
18
1421
2199
Company Question
ICPC Ural Regional Contest Qualifier 2024
15
1595
Solved problems:
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