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Solved problems:
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ID
Title
Source
Authors
Difficulty
1020
Rope
Autumn School Contest 2000
14999
99
1030
Titanic
Ural Championship 1999
1697
868
1043
Cover an Arc
USU Championship 2000
902
1609
1046
Geometrical Dreams
USU Local Contest. March 2000
769
1861
1052
Rabbit Hunt
USU Local Contest. March 2000
6249
232
1058
Chocolate
NEERC 2000 Central Subregional
510
2776
1065
Frontier
NEERC 2000
986
1375
1075
Thread in a Space
USU Personal Contest 2001
648
2023
1084
Goat in the Garden
Spring School Contest 2001
8779
149
1093
Darts
USU Local Contest. March 2001
624
1957
1103
Pencils and Circles
Tetrahedron Team Online Contest May 2001
946
499
1111
Squares
Bulgarian Online Contest September 2001
1209
393
1130
Nikifor's Walk
USU Championship 2001
503
936
1159
Fence
NEERC 2001 Northern Subregional
636
745
1163
Chapaev
NEERC 2001 Northern Subregional
96
4538
1168
Radio Stations
Romanian Online Contest December 2001
650
729
1170
Desert
Romanian Online Contest December 2001
318
1467
1185
Wall
NEERC 2001
1581
303
1192
Ball in a Dream
Spring School Contest 2002
4467
108
1199
Mouse
123
3436
1207
Median on the Plane
USU Local Contest. March 2002
3566
135
1215
Exactness of Projectile Hit
Autumn School Contest 2002
1616
299
1232
Asteroid Landing
NEERC 2002 Central Subregional
194
2388
1234
Bricks
NEERC 2002
704
683
1239
Ghost Busters
NEERC 2002
150
3048
1246
Tethered Dog
USU Personal Contest 2003
1471
330
1256
Cemetery Guard
USU Local Contest. March 2003
203
2298
1258
Pool
Autumn School Contest 2003
1180
414
1265
Mirror
USU Championship 2003
313
1527
1271
Sailing Directions
USU Championship 2003
95
4698
1281
River Basin
NEERC 2003 Central Subregional
346
1386
1285
Thread in a Hyperspace
USU Personal Contest 2004
295
1624
1294
Mars Satellites
Spring School Contest 2004
1590
310
1305
Convex Hull
Ural Championship 1998
698
700
1308
Dean's Pyramid
Ural Championship 2004. Round 1
163
2867
1312
Tray
Ural Championship 2004. Round 1
157
2970
1317
Hail
Ural Championship 2004. Round 2
454
1069
1328
Fireball
Autumn School Contest 2004
351
1382
1331
Vladislava
Autumn School Contest 2004
493
992
1332
Genie Bomber
Autumn School Contest 2004
796
619
1333
Genie Bomber 2
Autumn School Contest 2004
2292
217
1340
Cucaracha
USU Championship 2004
90
5006
1341
Device
USU Championship 2004
432
1133
1348
Goat in the Garden 2
Spring School Contest 2005
2636
189
1351
Good Gnusmas – Dead Gnusmas
Spring School Contest 2005
941
527
1372
Death Star
Ural Championship 2005. Round 1
74
5985
1373
Pictura ex Machina
Ural Championship 2005. Round 1
585
845
1384
Goat in the Garden 4
Petrozavodsk Summer 2005. Moscow+Ural Contest
90
5028
1397
Points Game
268
1680
1405
Goat in the Garden 5
Autumn School Contest 2005
695
713
1412
Autumn Tide
USU Championship 2005
325
1496
1415
Mobile Life
USU Championship 2005
44
9280
1418
Military Story
USU Championship 2005
545
903
1422
Fireflies
Timus Top Coders: First Challenge
551
874
1429
Biscuits
Timus Top Coders: First Challenge
169
2738
1436
Billboard
USU Personal Contest 2006
578
831
1442
Floo Powder
Ural Championship 2006
142
3194
1444
Elephpotamus
Ural Championship 2006
1461
330
1451
Beerhouse Tale
Timus Top Coders: Second Challenge
476
993
1460
Wires
Petrozavodsk Winter 2006. USU Contest
102
4207
1464
Light
Petrozavodsk Winter 2006. USU Contest
151
2927
1469
No Smoking!
Petrozavodsk Summer 2006. Ural+Orel Contest
457
1000
1475
Ryaba Hen
Petrozavodsk Summer 2006. Ural+Orel Contest
106
4024
1477
Airplanes
Petrozavodsk Summer 2006. Ural+Orel Contest
144
3031
1482
Triangle Game
USU Championship 2006
141
3083
1489
Points on a Parallelepiped
Autumn School Contest 2006
1185
389
1504
Good Manners
NEERC 2006 Eastern Subregional
196
2250
1514
National Park
Timus Top Coders: Third Challenge
244
1805
1520
Empire Strikes Back
Timus Top Coders: Third Challenge
176
2465
1538
Towers of Guard
USU Personal Contest 2007
346
1267
1550
Dean's Pyramid 3
Ural Championship 2007
734
600
1556
Multishot in the Secret Cow Level
Petrozavodsk Summer 2007. NSU Contest
35
9586
1562
GM-pineapple
USU Championship 2007
1037
411
1566
Triangular Postcards
USU Championship 2007
130
3072
1572
Yekaterinozavodsk Great Well
Autumn School Contest 2007
2977
144
1578
Mammoth Hunt
Autumn School Contest 2007
480
876
1583
Cheese
NEERC 2007 Eastern Subregional
219
1869
1588
Jamaica
NEERC 2007 Eastern Subregional
1323
321
1599
Winding Number
92
1972
1600
Airport
USU Personal Contest 2008
740
555
1616
Square Country 4
Ural Championship 2008
94
3978
1626
Interfering Segment
Petrozavodsk Winter 2008. ITMO Contest
40
8019
1632
Lasers
USU Championship 2008
81
4352
1637
Triangle Game 2
USU Championship 2008
112
3246
1640
Circle of Winter
Autumn School Contest 2008
2294
171
1647
Divide an Island!
Autumn School Contest 2008
472
819
1653
Death Conveyor
NEERC 2008 Eastern Subregional
47
6915
1659
Regular Triangles
NEERC 2008 Eastern Subregional
609
637
1660
The Island of Bad Luck
Petrozavodsk Winter 2008. USU Contest
49
6607
1662
Goat in the Garden 6
Petrozavodsk Winter 2008. USU Contest
74
4641
1679
Scrooge's Tower
Petrozavodsk Summer 2008. USU Contest
378
1000
1681
Brother Bear's Garden
USU Personal Contest 2009
93
3725
1686
Photovoltaic Spaceship
USU Personal Contest 2009
255
1448
1697
Sniper Shot
Petrozavodsk Winter 2009. USU Contest
60
5464
1703
Robotic Arm
Ural Championship 2009
240
1523
1710
Boris, You Are Wrong!
Ural Championship 2009
584
641
1719
Kill the Shaitan-Boss
NEERC 2009 Eastern Subregional
239
1464
1722
Observation Deck
Ural Regional School Programming Contest 2009
270
1299
1733
Forgotten Technology
USU Championship 2009
68
4648
1750
Pakhom and the Gully
Petrozavodsk Summer 2009. Ufa SATU Contest
284
1210
1753
Bookshelf
USU Personal Contest 2010
1089
320
1754
Explosion in a Pyramid
USU Personal Contest 2010
549
629
1768
Circular Strings
Ural Championship 2010
292
1156
1775
Space Bowling
Ural SU Championship 2010
363
896
1793
Tray 2
Ural Regional School Programming Contest 2010
868
380
1808
Chapaev at the Planet Ocean
NEERC 2010 Eastern Subregional
167
1879
1824
Ifrit Bomber
USU Personal Contest 2011
304
1024
1825
Ifrit Bomber 2
USU Personal Contest 2011
356
878
1836
Babel Fish
Ural Championship 2011
277
1108
1839
The Mentaculus
Ural Championship 2011
117
2505
1840
Victim of Advertising
Ural Championship 2011
26
8836
1874
Football Goal
Ural Regional School Programming Contest 2011
1623
186
1875
Angry Birds
Ural Regional School Programming Contest 2011
317
931
1883
Ent's Birthday
Ural Regional School Programming Contest 2011
253
1158
1894
Non-Flying Weather
NEERC 2011 Eastern Subregional
178
1616
1909
Space Recon
Ural Championship 2012
53
4402
1913
Titan Ruins: Alignment of Forces
NEERC 2012 Eastern Subregional
145
1786
1919
Titan Ruins: Transformation of Cylinders
NEERC 2012 Eastern Subregional
129
1992
1927
Herbs and Magic
Ural Regional School Programming Contest 2012
260
1023
1938
Caribbean Triangle
Ural FU Championship 2012
46
4915
1955
Boss, I Can See You!
Petrozavodsk Winter 2013. Kontur Cup. ChU 2013 Selection
76
3015
1956
Fire Signals
Petrozavodsk Winter 2013. Kontur Cup. ChU 2013 Selection
99
2379
1963
Kite
Ural FU Personal Contest 2013
548
464
1983
Nectar Gathering
Ural FU Championship 2013
154
1526
1988
Planet Ocean Landing
Ural FU Championship 2013
221
1083
2016
Magic and Science
NEERC 2014 Eastern Subregional
18
8036
2032
Conspiracy Theory and Rebranding
Ural Regional School Programming Contest 2014
302
718
2050
3D-modeling
Ural Championship 2015
62
2930
2054
Astronomy
Ural Championship 2015
19
7274
2067
Friends and Berries
Ural Regional School Programming Contest 2015
675
291
2076
Vasiana
Qualification of Eastern Subregional 2015
16
7356
2099
Space Invader
Ural FU Personal Contest 2014
284
619
2101
Knight's Shield
Ural FU Junior Championship 2016
96
1635
2121
Intersection of Parabolas
Petrozavodsk Summer 2018. t.me/umnik_team Contest
159
686
2139
Experiment with Juice
Ural School Programming Contest 2019
16
4085
2148
Insane Shot
Ural School Programming Contest 2019
204
496
2154
Flight on a Cannonball
Ural School Programming Contest 2020
25
2252
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