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Solved problems:
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ID
Title
Source
Authors
Difficulty
1020
Rope
Autumn School Contest 2000
15591
99
1030
Titanic
Ural Championship 1999
1722
892
1043
Cover an Arc
USU Championship 2000
924
1639
1046
Geometrical Dreams
USU Local Contest. March 2000
790
1890
1052
Rabbit Hunt
USU Local Contest. March 2000
6382
237
1058
Chocolate
NEERC 2000 Central Subregional
527
2804
1065
Frontier
NEERC 2000
1006
1406
1075
Thread in a Space
USU Personal Contest 2001
681
2010
1084
Goat in the Garden
Spring School Contest 2001
9076
150
1093
Darts
USU Local Contest. March 2001
639
1994
1103
Pencils and Circles
Tetrahedron Team Online Contest May 2001
980
503
1111
Squares
Bulgarian Online Contest September 2001
1279
388
1130
Nikifor's Walk
USU Championship 2001
519
946
1159
Fence
NEERC 2001 Northern Subregional
655
754
1163
Chapaev
NEERC 2001 Northern Subregional
112
4109
1168
Radio Stations
Romanian Online Contest December 2001
675
732
1170
Desert
Romanian Online Contest December 2001
327
1488
1185
Wall
NEERC 2001
1659
301
1192
Ball in a Dream
Spring School Contest 2002
4603
109
1199
Mouse
130
3415
1207
Median on the Plane
USU Local Contest. March 2002
4160
121
1215
Exactness of Projectile Hit
Autumn School Contest 2002
1675
301
1232
Asteroid Landing
NEERC 2002 Central Subregional
204
2370
1234
Bricks
NEERC 2002
730
686
1239
Ghost Busters
NEERC 2002
153
3115
1246
Tethered Dog
USU Personal Contest 2003
1512
334
1256
Cemetery Guard
USU Local Contest. March 2003
214
2274
1258
Pool
Autumn School Contest 2003
1219
417
1265
Mirror
USU Championship 2003
322
1545
1271
Sailing Directions
USU Championship 2003
101
4622
1281
River Basin
NEERC 2003 Central Subregional
362
1380
1285
Thread in a Hyperspace
USU Personal Contest 2004
306
1630
1294
Mars Satellites
Spring School Contest 2004
1624
315
1305
Convex Hull
Ural Championship 1998
718
708
1308
Dean's Pyramid
Ural Championship 2004. Round 1
170
2865
1312
Tray
Ural Championship 2004. Round 1
161
3016
1317
Hail
Ural Championship 2004. Round 2
471
1072
1328
Fireball
Autumn School Contest 2004
358
1409
1331
Vladislava
Autumn School Contest 2004
509
999
1332
Genie Bomber
Autumn School Contest 2004
826
620
1333
Genie Bomber 2
Autumn School Contest 2004
2379
217
1340
Cucaracha
USU Championship 2004
94
5001
1341
Device
USU Championship 2004
445
1143
1348
Goat in the Garden 2
Spring School Contest 2005
2903
179
1351
Good Gnusmas – Dead Gnusmas
Spring School Contest 2005
985
523
1372
Death Star
Ural Championship 2005. Round 1
78
5934
1373
Pictura ex Machina
Ural Championship 2005. Round 1
608
845
1384
Goat in the Garden 4
Petrozavodsk Summer 2005. Moscow+Ural Contest
94
5021
1397
Points Game
272
1730
1405
Goat in the Garden 5
Autumn School Contest 2005
720
715
1412
Autumn Tide
USU Championship 2005
332
1523
1415
Mobile Life
USU Championship 2005
46
9296
1418
Military Story
USU Championship 2005
561
912
1422
Fireflies
Timus Top Coders: First Challenge
581
863
1429
Biscuits
Timus Top Coders: First Challenge
180
2684
1436
Billboard
USU Personal Contest 2006
598
836
1442
Floo Powder
Ural Championship 2006
146
3241
1444
Elephpotamus
Ural Championship 2006
1835
274
1451
Beerhouse Tale
Timus Top Coders: Second Challenge
494
998
1460
Wires
Petrozavodsk Winter 2006. USU Contest
106
4240
1464
Light
Petrozavodsk Winter 2006. USU Contest
159
2910
1469
No Smoking!
Petrozavodsk Summer 2006. Ural+Orel Contest
511
936
1475
Ryaba Hen
Petrozavodsk Summer 2006. Ural+Orel Contest
116
3870
1477
Airplanes
Petrozavodsk Summer 2006. Ural+Orel Contest
151
3029
1482
Triangle Game
USU Championship 2006
147
3098
1489
Points on a Parallelepiped
Autumn School Contest 2006
1245
387
1504
Good Manners
NEERC 2006 Eastern Subregional
208
2222
1514
National Park
Timus Top Coders: Third Challenge
256
1803
1520
Empire Strikes Back
Timus Top Coders: Third Challenge
186
2447
1538
Towers of Guard
USU Personal Contest 2007
358
1284
1550
Dean's Pyramid 3
Ural Championship 2007
772
598
1556
Multishot in the Secret Cow Level
Petrozavodsk Summer 2007. NSU Contest
38
9449
1562
GM-pineapple
USU Championship 2007
1109
404
1566
Triangular Postcards
USU Championship 2007
136
3098
1572
Yekaterinozavodsk Great Well
Autumn School Contest 2007
3079
146
1578
Mammoth Hunt
Autumn School Contest 2007
503
880
1583
Cheese
NEERC 2007 Eastern Subregional
228
1892
1588
Jamaica
NEERC 2007 Eastern Subregional
1374
325
1599
Winding Number
113
1889
1600
Airport
USU Personal Contest 2008
780
556
1616
Square Country 4
Ural Championship 2008
99
4005
1626
Interfering Segment
Petrozavodsk Winter 2008. ITMO Contest
43
8006
1632
Lasers
USU Championship 2008
83
4512
1637
Triangle Game 2
USU Championship 2008
115
3357
1640
Circle of Winter
Autumn School Contest 2008
2378
175
1647
Divide an Island!
Autumn School Contest 2008
490
837
1653
Death Conveyor
NEERC 2008 Eastern Subregional
53
6632
1659
Regular Triangles
NEERC 2008 Eastern Subregional
634
649
1660
The Island of Bad Luck
Petrozavodsk Winter 2008. USU Contest
53
6566
1662
Goat in the Garden 6
Petrozavodsk Winter 2008. USU Contest
80
4596
1679
Scrooge's Tower
Petrozavodsk Summer 2008. USU Contest
393
1022
1681
Brother Bear's Garden
USU Personal Contest 2009
101
3673
1686
Photovoltaic Spaceship
USU Personal Contest 2009
261
1505
1697
Sniper Shot
Petrozavodsk Winter 2009. USU Contest
63
5569
1703
Robotic Arm
Ural Championship 2009
312
1257
1710
Boris, You Are Wrong!
Ural Championship 2009
608
655
1719
Kill the Shaitan-Boss
NEERC 2009 Eastern Subregional
251
1491
1722
Observation Deck
Ural Regional School Programming Contest 2009
279
1345
1733
Forgotten Technology
USU Championship 2009
73
4668
1750
Pakhom and the Gully
Petrozavodsk Summer 2009. Ufa SATU Contest
293
1257
1753
Bookshelf
USU Personal Contest 2010
1127
331
1754
Explosion in a Pyramid
USU Personal Contest 2010
574
645
1768
Circular Strings
Ural Championship 2010
306
1185
1775
Space Bowling
Ural SU Championship 2010
374
938
1793
Tray 2
Ural Regional School Programming Contest 2010
907
392
1808
Chapaev at the Planet Ocean
NEERC 2010 Eastern Subregional
172
1971
1824
Ifrit Bomber
USU Personal Contest 2011
318
1061
1825
Ifrit Bomber 2
USU Personal Contest 2011
367
923
1836
Babel Fish
Ural Championship 2011
283
1177
1839
The Mentaculus
Ural Championship 2011
124
2573
1840
Victim of Advertising
Ural Championship 2011
31
8408
1874
Football Goal
Ural Regional School Programming Contest 2011
1700
194
1875
Angry Birds
Ural Regional School Programming Contest 2011
333
967
1883
Ent's Birthday
Ural Regional School Programming Contest 2011
265
1206
1894
Non-Flying Weather
NEERC 2011 Eastern Subregional
217
1458
1909
Space Recon
Ural Championship 2012
60
4365
1913
Titan Ruins: Alignment of Forces
NEERC 2012 Eastern Subregional
151
1895
1919
Titan Ruins: Transformation of Cylinders
NEERC 2012 Eastern Subregional
136
2089
1927
Herbs and Magic
Ural Regional School Programming Contest 2012
272
1080
1938
Caribbean Triangle
Ural FU Championship 2012
52
4896
1955
Boss, I Can See You!
Petrozavodsk Winter 2013. Kontur Cup. ChU 2013 Selection
80
3203
1956
Fire Signals
Petrozavodsk Winter 2013. Kontur Cup. ChU 2013 Selection
109
2422
1963
Kite
Ural FU Personal Contest 2013
585
484
1983
Nectar Gathering
Ural FU Championship 2013
160
1644
1988
Planet Ocean Landing
Ural FU Championship 2013
232
1155
2016
Magic and Science
NEERC 2014 Eastern Subregional
19
8802
2032
Conspiracy Theory and Rebranding
Ural Regional School Programming Contest 2014
321
768
2050
3D-modeling
Ural Championship 2015
66
3181
2054
Astronomy
Ural Championship 2015
22
7555
2067
Friends and Berries
Ural Regional School Programming Contest 2015
718
317
2076
Vasiana
Qualification of Eastern Subregional 2015
18
7958
2099
Space Invader
Ural FU Personal Contest 2014
334
622
2101
Knight's Shield
Ural FU Junior Championship 2016
109
1727
2121
Intersection of Parabolas
Petrozavodsk Summer 2018. umnik_team Contest
201
713
2139
Experiment with Juice
Ural School Programming Contest 2019
22
4409
2148
Insane Shot
Ural School Programming Contest 2019
282
483
2154
Flight on a Cannonball
Ural School Programming Contest 2020
37
2442
2165
Cake Cutter
Ural School Programming Contest 2021
24
1917
2166
Two Roads
Ural School Programming Contest 2022
18
2327
2179
Need More Roads
Ural School Programming Contest 2023
5
2461
2186
Hands Up!
Ural School Programming Contest 2024
5
2456
2196
Apocalypse
ICPC Ural Regional Contest Qualifier 2023
6
2300
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