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Solved problems:
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ID
Title
Source
Authors
Difficulty
1020
Rope
Autumn School Contest 2000
14850
99
1030
Titanic
Ural Championship 1999
1692
863
1043
Cover an Arc
USU Championship 2000
898
1603
1046
Geometrical Dreams
USU Local Contest. March 2000
765
1856
1052
Rabbit Hunt
USU Local Contest. March 2000
6217
231
1058
Chocolate
NEERC 2000 Central Subregional
508
2765
1065
Frontier
NEERC 2000
983
1369
1075
Thread in a Space
USU Personal Contest 2001
644
2020
1084
Goat in the Garden
Spring School Contest 2001
8736
148
1093
Darts
USU Local Contest. March 2001
617
1964
1103
Pencils and Circles
Tetrahedron Team Online Contest May 2001
946
495
1111
Squares
Bulgarian Online Contest September 2001
1200
393
1130
Nikifor's Walk
USU Championship 2001
503
929
1159
Fence
NEERC 2001 Northern Subregional
636
739
1163
Chapaev
NEERC 2001 Northern Subregional
243
1887
1168
Radio Stations
Romanian Online Contest December 2001
649
725
1170
Desert
Romanian Online Contest December 2001
313
1478
1185
Wall
NEERC 2001
1570
303
1192
Ball in a Dream
Spring School Contest 2002
4450
107
1199
Mouse
121
3459
1207
Median on the Plane
USU Local Contest. March 2002
3021
158
1215
Exactness of Projectile Hit
Autumn School Contest 2002
1602
300
1232
Asteroid Landing
NEERC 2002 Central Subregional
192
2393
1234
Bricks
NEERC 2002
700
682
1239
Ghost Busters
NEERC 2002
149
3044
1246
Tethered Dog
USU Personal Contest 2003
1460
330
1256
Cemetery Guard
USU Local Contest. March 2003
202
2291
1258
Pool
Autumn School Contest 2003
1169
415
1265
Mirror
USU Championship 2003
310
1530
1271
Sailing Directions
USU Championship 2003
95
4663
1281
River Basin
NEERC 2003 Central Subregional
343
1388
1285
Thread in a Hyperspace
USU Personal Contest 2004
291
1634
1294
Mars Satellites
Spring School Contest 2004
1580
309
1305
Convex Hull
Ural Championship 1998
693
700
1308
Dean's Pyramid
Ural Championship 2004. Round 1
163
2847
1312
Tray
Ural Championship 2004. Round 1
156
2967
1317
Hail
Ural Championship 2004. Round 2
452
1066
1328
Fireball
Autumn School Contest 2004
348
1384
1331
Vladislava
Autumn School Contest 2004
490
991
1332
Genie Bomber
Autumn School Contest 2004
791
618
1333
Genie Bomber 2
Autumn School Contest 2004
2273
217
1340
Cucaracha
USU Championship 2004
89
5021
1341
Device
USU Championship 2004
430
1130
1348
Goat in the Garden 2
Spring School Contest 2005
2567
193
1351
Good Gnusmas – Dead Gnusmas
Spring School Contest 2005
937
525
1372
Death Star
Ural Championship 2005. Round 1
74
5943
1373
Pictura ex Machina
Ural Championship 2005. Round 1
582
843
1384
Goat in the Garden 4
Petrozavodsk Summer 2005. Moscow+Ural Contest
90
4993
1397
Points Game
263
1697
1405
Goat in the Garden 5
Autumn School Contest 2005
692
711
1412
Autumn Tide
USU Championship 2005
322
1499
1415
Mobile Life
USU Championship 2005
44
9214
1418
Military Story
USU Championship 2005
544
898
1422
Fireflies
Timus Top Coders: First Challenge
544
878
1429
Biscuits
Timus Top Coders: First Challenge
176
2615
1436
Billboard
USU Personal Contest 2006
575
829
1442
Floo Powder
Ural Championship 2006
140
3213
1444
Elephpotamus
Ural Championship 2006
999
478
1451
Beerhouse Tale
Timus Top Coders: Second Challenge
472
994
1460
Wires
Petrozavodsk Winter 2006. USU Contest
102
4174
1464
Light
Petrozavodsk Winter 2006. USU Contest
150
2922
1469
No Smoking!
Petrozavodsk Summer 2006. Ural+Orel Contest
451
1004
1475
Ryaba Hen
Petrozavodsk Summer 2006. Ural+Orel Contest
104
4062
1477
Airplanes
Petrozavodsk Summer 2006. Ural+Orel Contest
142
3046
1482
Triangle Game
USU Championship 2006
136
3163
1489
Points on a Parallelepiped
Autumn School Contest 2006
1175
389
1504
Good Manners
NEERC 2006 Eastern Subregional
193
2264
1514
National Park
Timus Top Coders: Third Challenge
243
1797
1520
Empire Strikes Back
Timus Top Coders: Third Challenge
174
2471
1538
Towers of Guard
USU Personal Contest 2007
343
1266
1550
Dean's Pyramid 3
Ural Championship 2007
731
597
1556
Multishot in the Secret Cow Level
Petrozavodsk Summer 2007. NSU Contest
35
9496
1562
GM-pineapple
USU Championship 2007
1027
411
1566
Triangular Postcards
USU Championship 2007
128
3087
1572
Yekaterinozavodsk Great Well
Autumn School Contest 2007
2960
143
1578
Mammoth Hunt
Autumn School Contest 2007
479
870
1583
Cheese
NEERC 2007 Eastern Subregional
217
1868
1588
Jamaica
NEERC 2007 Eastern Subregional
1314
320
1599
Winding Number
87
2016
1600
Airport
USU Personal Contest 2008
737
552
1616
Square Country 4
Ural Championship 2008
94
3938
1626
Interfering Segment
Petrozavodsk Winter 2008. ITMO Contest
40
7934
1632
Lasers
USU Championship 2008
81
4305
1637
Triangle Game 2
USU Championship 2008
110
3265
1640
Circle of Winter
Autumn School Contest 2008
2270
171
1647
Divide an Island!
Autumn School Contest 2008
471
812
1653
Death Conveyor
NEERC 2008 Eastern Subregional
47
6840
1659
Regular Triangles
NEERC 2008 Eastern Subregional
606
633
1660
The Island of Bad Luck
Petrozavodsk Winter 2008. USU Contest
49
6534
1662
Goat in the Garden 6
Petrozavodsk Winter 2008. USU Contest
74
4589
1679
Scrooge's Tower
Petrozavodsk Summer 2008. USU Contest
375
996
1681
Brother Bear's Garden
USU Personal Contest 2009
93
3683
1686
Photovoltaic Spaceship
USU Personal Contest 2009
252
1448
1697
Sniper Shot
Petrozavodsk Winter 2009. USU Contest
60
5401
1703
Robotic Arm
Ural Championship 2009
216
1665
1710
Boris, You Are Wrong!
Ural Championship 2009
582
636
1719
Kill the Shaitan-Boss
NEERC 2009 Eastern Subregional
234
1475
1722
Observation Deck
Ural Regional School Programming Contest 2009
270
1283
1733
Forgotten Technology
USU Championship 2009
67
4650
1750
Pakhom and the Gully
Petrozavodsk Summer 2009. Ufa SATU Contest
283
1198
1753
Bookshelf
USU Personal Contest 2010
1078
319
1754
Explosion in a Pyramid
USU Personal Contest 2010
544
626
1768
Circular Strings
Ural Championship 2010
292
1141
1775
Space Bowling
Ural SU Championship 2010
362
886
1793
Tray 2
Ural Regional School Programming Contest 2010
861
378
1808
Chapaev at the Planet Ocean
NEERC 2010 Eastern Subregional
165
1874
1824
Ifrit Bomber
USU Personal Contest 2011
300
1021
1825
Ifrit Bomber 2
USU Personal Contest 2011
353
872
1836
Babel Fish
Ural Championship 2011
276
1095
1839
The Mentaculus
Ural Championship 2011
117
2467
1840
Victim of Advertising
Ural Championship 2011
25
8951
1874
Football Goal
Ural Regional School Programming Contest 2011
1606
185
1875
Angry Birds
Ural Regional School Programming Contest 2011
316
919
1883
Ent's Birthday
Ural Regional School Programming Contest 2011
252
1143
1894
Non-Flying Weather
NEERC 2011 Eastern Subregional
173
1634
1909
Space Recon
Ural Championship 2012
52
4391
1913
Titan Ruins: Alignment of Forces
NEERC 2012 Eastern Subregional
144
1764
1919
Titan Ruins: Transformation of Cylinders
NEERC 2012 Eastern Subregional
126
1998
1927
Herbs and Magic
Ural Regional School Programming Contest 2012
253
1031
1938
Caribbean Triangle
Ural FU Championship 2012
46
4824
1955
Boss, I Can See You!
Petrozavodsk Winter 2013. Kontur Cup. ChU 2013 Selection
74
3025
1956
Fire Signals
Petrozavodsk Winter 2013. Kontur Cup. ChU 2013 Selection
98
2353
1963
Kite
Ural FU Personal Contest 2013
547
455
1983
Nectar Gathering
Ural FU Championship 2013
151
1521
1988
Planet Ocean Landing
Ural FU Championship 2013
219
1069
2016
Magic and Science
NEERC 2014 Eastern Subregional
18
7840
2032
Conspiracy Theory and Rebranding
Ural Regional School Programming Contest 2014
302
700
2050
3D-modeling
Ural Championship 2015
62
2853
2054
Astronomy
Ural Championship 2015
18
7335
2067
Friends and Berries
Ural Regional School Programming Contest 2015
663
288
2076
Vasiana
Qualification of Eastern Subregional 2015
16
7135
2099
Space Invader
Ural FU Personal Contest 2014
280
608
2101
Knight's Shield
Ural FU Junior Championship 2016
95
1594
2121
Intersection of Parabolas
Petrozavodsk Summer 2018. t.me/umnik_team Contest
152
677
2139
Experiment with Juice
Ural School Programming Contest 2019
15
3995
2148
Insane Shot
Ural School Programming Contest 2019
197
483
2154
Flight on a Cannonball
Ural School Programming Contest 2020
23
2190
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