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Solved problems:
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ID
Title
Source
Authors
Difficulty
1020
Rope
Autumn School Contest 2000
14144
100
1030
Titanic
Ural Championship 1999
1662
841
1043
Cover an Arc
USU Championship 2000
868
1587
1046
Geometrical Dreams
USU Local Contest. March 2000
747
1818
1052
Rabbit Hunt
USU Local Contest. March 2000
6076
226
1058
Chocolate
NEERC 2000 Central Subregional
473
2838
1065
Frontier
NEERC 2000
942
1367
1075
Thread in a Space
USU Personal Contest 2001
609
2043
1084
Goat in the Garden
Spring School Contest 2001
8437
147
1093
Darts
USU Local Contest. March 2001
599
1936
1103
Pencils and Circles
Tetrahedron Team Online Contest May 2001
909
494
1111
Squares
Bulgarian Online Contest September 2001
1142
396
1130
Nikifor's Walk
USU Championship 2001
481
930
1159
Fence
NEERC 2001 Northern Subregional
622
724
1163
Chapaev
NEERC 2001 Northern Subregional
226
1939
1168
Radio Stations
Romanian Online Contest December 2001
627
718
1170
Desert
Romanian Online Contest December 2001
299
1481
1185
Wall
NEERC 2001
1497
305
1192
Ball in a Dream
Spring School Contest 2002
4185
109
1199
Mouse
108
3663
1207
Median on the Plane
USU Local Contest. March 2002
2523
181
1215
Exactness of Projectile Hit
Autumn School Contest 2002
1544
298
1232
Asteroid Landing
NEERC 2002 Central Subregional
186
2366
1234
Bricks
NEERC 2002
686
667
1239
Ghost Busters
NEERC 2002
147
2958
1246
Tethered Dog
USU Personal Contest 2003
1389
333
1256
Cemetery Guard
USU Local Contest. March 2003
196
2263
1258
Pool
Autumn School Contest 2003
1120
416
1265
Mirror
USU Championship 2003
303
1502
1271
Sailing Directions
USU Championship 2003
92
4610
1281
River Basin
NEERC 2003 Central Subregional
327
1396
1285
Thread in a Hyperspace
USU Personal Contest 2004
273
1669
1294
Mars Satellites
Spring School Contest 2004
1520
309
1305
Convex Hull
Ural Championship 1998
665
701
1308
Dean's Pyramid
Ural Championship 2004. Round 1
159
2800
1312
Tray
Ural Championship 2004. Round 1
154
2885
1317
Hail
Ural Championship 2004. Round 2
431
1073
1328
Fireball
Autumn School Contest 2004
338
1368
1331
Vladislava
Autumn School Contest 2004
469
994
1332
Genie Bomber
Autumn School Contest 2004
756
622
1333
Genie Bomber 2
Autumn School Contest 2004
2203
215
1340
Cucaracha
USU Championship 2004
88
4877
1341
Device
USU Championship 2004
415
1125
1348
Goat in the Garden 2
Spring School Contest 2005
2492
191
1351
Good Gnusmas – Dead Gnusmas
Spring School Contest 2005
893
530
1372
Death Star
Ural Championship 2005. Round 1
74
5716
1373
Pictura ex Machina
Ural Championship 2005. Round 1
555
850
1384
Goat in the Garden 4
Petrozavodsk Summer 2005. Moscow+Ural Contest
83
5164
1397
Points Game
249
1710
1405
Goat in the Garden 5
Autumn School Contest 2005
668
708
1412
Autumn Tide
USU Championship 2005
307
1510
1415
Mobile Life
USU Championship 2005
43
9028
1418
Military Story
USU Championship 2005
520
903
1422
Fireflies
Timus Top Coders: First Challenge
519
883
1429
Biscuits
Timus Top Coders: First Challenge
168
2623
1436
Billboard
USU Personal Contest 2006
547
835
1442
Floo Powder
Ural Championship 2006
137
3144
1444
Elephpotamus
Ural Championship 2006
631
721
1451
Beerhouse Tale
Timus Top Coders: Second Challenge
452
994
1460
Wires
Petrozavodsk Winter 2006. USU Contest
97
4179
1464
Light
Petrozavodsk Winter 2006. USU Contest
147
2848
1469
No Smoking!
Petrozavodsk Summer 2006. Ural+Orel Contest
409
1056
1475
Ryaba Hen
Petrozavodsk Summer 2006. Ural+Orel Contest
100
4024
1477
Airplanes
Petrozavodsk Summer 2006. Ural+Orel Contest
138
2991
1482
Triangle Game
USU Championship 2006
132
3107
1489
Points on a Parallelepiped
Autumn School Contest 2006
1119
390
1504
Good Manners
NEERC 2006 Eastern Subregional
177
2348
1514
National Park
Timus Top Coders: Third Challenge
227
1831
1520
Empire Strikes Back
Timus Top Coders: Third Challenge
161
2538
1538
Towers of Guard
USU Personal Contest 2007
331
1249
1550
Dean's Pyramid 3
Ural Championship 2007
685
606
1556
Multishot in the Secret Cow Level
Petrozavodsk Summer 2007. NSU Contest
34
9217
1562
GM-pineapple
USU Championship 2007
975
410
1566
Triangular Postcards
USU Championship 2007
126
2972
1572
Yekaterinozavodsk Great Well
Autumn School Contest 2007
2833
142
1578
Mammoth Hunt
Autumn School Contest 2007
453
871
1583
Cheese
NEERC 2007 Eastern Subregional
210
1828
1588
Jamaica
NEERC 2007 Eastern Subregional
1268
315
1599
Winding Number
52
2660
1600
Airport
USU Personal Contest 2008
706
544
1616
Square Country 4
Ural Championship 2008
90
3871
1626
Interfering Segment
Petrozavodsk Winter 2008. ITMO Contest
37
7952
1632
Lasers
USU Championship 2008
79
4142
1637
Triangle Game 2
USU Championship 2008
109
3098
1640
Circle of Winter
Autumn School Contest 2008
2175
168
1647
Divide an Island!
Autumn School Contest 2008
457
787
1653
Death Conveyor
NEERC 2008 Eastern Subregional
44
6790
1659
Regular Triangles
NEERC 2008 Eastern Subregional
589
612
1660
The Island of Bad Luck
Petrozavodsk Winter 2008. USU Contest
47
6353
1662
Goat in the Garden 6
Petrozavodsk Winter 2008. USU Contest
68
4643
1679
Scrooge's Tower
Petrozavodsk Summer 2008. USU Contest
349
1003
1681
Brother Bear's Garden
USU Personal Contest 2009
92
3487
1686
Photovoltaic Spaceship
USU Personal Contest 2009
244
1400
1697
Sniper Shot
Petrozavodsk Winter 2009. USU Contest
56
5370
1703
Robotic Arm
Ural Championship 2009
183
1827
1710
Boris, You Are Wrong!
Ural Championship 2009
571
607
1719
Kill the Shaitan-Boss
NEERC 2009 Eastern Subregional
230
1398
1722
Observation Deck
Ural Regional School Programming Contest 2009
259
1245
1733
Forgotten Technology
USU Championship 2009
64
4508
1750
Pakhom and the Gully
Petrozavodsk Summer 2009. Ufa SATU Contest
268
1174
1753
Bookshelf
USU Personal Contest 2010
1032
309
1754
Explosion in a Pyramid
USU Personal Contest 2010
530
596
1768
Circular Strings
Ural Championship 2010
276
1117
1775
Space Bowling
Ural SU Championship 2010
353
838
1793
Tray 2
Ural Regional School Programming Contest 2010
840
357
1808
Chapaev at the Planet Ocean
NEERC 2010 Eastern Subregional
161
1768
1824
Ifrit Bomber
USU Personal Contest 2011
288
975
1825
Ifrit Bomber 2
USU Personal Contest 2011
344
821
1836
Babel Fish
Ural Championship 2011
262
1056
1839
The Mentaculus
Ural Championship 2011
111
2373
1840
Victim of Advertising
Ural Championship 2011
23
8702
1874
Football Goal
Ural Regional School Programming Contest 2011
1544
176
1875
Angry Birds
Ural Regional School Programming Contest 2011
301
877
1883
Ent's Birthday
Ural Regional School Programming Contest 2011
241
1087
1894
Non-Flying Weather
NEERC 2011 Eastern Subregional
145
1757
1909
Space Recon
Ural Championship 2012
49
4145
1913
Titan Ruins: Alignment of Forces
NEERC 2012 Eastern Subregional
141
1616
1919
Titan Ruins: Transformation of Cylinders
NEERC 2012 Eastern Subregional
122
1848
1927
Herbs and Magic
Ural Regional School Programming Contest 2012
236
990
1938
Caribbean Triangle
Ural FU Championship 2012
44
4488
1955
Boss, I Can See You!
Petrozavodsk Winter 2013. Kontur Cup. ChU 2013 Selection
66
2970
1956
Fire Signals
Petrozavodsk Winter 2013. Kontur Cup. ChU 2013 Selection
93
2191
1963
Kite
Ural FU Personal Contest 2013
501
441
1983
Nectar Gathering
Ural FU Championship 2013
143
1413
1988
Planet Ocean Landing
Ural FU Championship 2013
208
992
2016
Magic and Science
NEERC 2014 Eastern Subregional
17
7031
2032
Conspiracy Theory and Rebranding
Ural Regional School Programming Contest 2014
289
632
2050
3D-modeling
Ural Championship 2015
60
2502
2054
Astronomy
Ural Championship 2015
17
6487
2067
Friends and Berries
Ural Regional School Programming Contest 2015
609
264
2076
Vasiana
Qualification of Eastern Subregional 2015
13
6719
2099
Space Invader
Ural FU Personal Contest 2014
241
577
2101
Knight's Shield
Ural FU Junior Championship 2016
86
1414
2121
Intersection of Parabolas
Petrozavodsk Summer 2018. t.me/umnik_team Contest
117
597
2139
Experiment with Juice
Ural School Programming Contest 2019
11
3126
2148
Insane Shot
Ural School Programming Contest 2019
146
421
2154
Flight on a Cannonball
Ural School Programming Contest 2020
12
1682
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