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Solved problems:
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ID
Title
Source
Authors
Difficulty
1020
Rope
Autumn School Contest 2000
15488
99
1030
Titanic
Ural Championship 1999
1716
884
1043
Cover an Arc
USU Championship 2000
919
1627
1046
Geometrical Dreams
USU Local Contest. March 2000
786
1876
1052
Rabbit Hunt
USU Local Contest. March 2000
6349
235
1058
Chocolate
NEERC 2000 Central Subregional
522
2795
1065
Frontier
NEERC 2000
1004
1391
1075
Thread in a Space
USU Personal Contest 2001
669
2019
1084
Goat in the Garden
Spring School Contest 2001
9021
149
1093
Darts
USU Local Contest. March 2001
638
1972
1103
Pencils and Circles
Tetrahedron Team Online Contest May 2001
971
501
1111
Squares
Bulgarian Online Contest September 2001
1256
390
1130
Nikifor's Walk
USU Championship 2001
518
936
1159
Fence
NEERC 2001 Northern Subregional
648
752
1163
Chapaev
NEERC 2001 Northern Subregional
106
4268
1168
Radio Stations
Romanian Online Contest December 2001
668
730
1170
Desert
Romanian Online Contest December 2001
325
1478
1185
Wall
NEERC 2001
1640
301
1192
Ball in a Dream
Spring School Contest 2002
4574
108
1199
Mouse
129
3393
1207
Median on the Plane
USU Local Contest. March 2002
3971
125
1215
Exactness of Projectile Hit
Autumn School Contest 2002
1663
299
1232
Asteroid Landing
NEERC 2002 Central Subregional
202
2363
1234
Bricks
NEERC 2002
725
682
1239
Ghost Busters
NEERC 2002
152
3096
1246
Tethered Dog
USU Personal Contest 2003
1505
332
1256
Cemetery Guard
USU Local Contest. March 2003
211
2277
1258
Pool
Autumn School Contest 2003
1205
417
1265
Mirror
USU Championship 2003
319
1541
1271
Sailing Directions
USU Championship 2003
99
4651
1281
River Basin
NEERC 2003 Central Subregional
357
1382
1285
Thread in a Hyperspace
USU Personal Contest 2004
304
1621
1294
Mars Satellites
Spring School Contest 2004
1614
314
1305
Convex Hull
Ural Championship 1998
712
706
1308
Dean's Pyramid
Ural Championship 2004. Round 1
169
2847
1312
Tray
Ural Championship 2004. Round 1
159
3016
1317
Hail
Ural Championship 2004. Round 2
467
1069
1328
Fireball
Autumn School Contest 2004
354
1408
1331
Vladislava
Autumn School Contest 2004
504
997
1332
Genie Bomber
Autumn School Contest 2004
812
623
1333
Genie Bomber 2
Autumn School Contest 2004
2364
216
1340
Cucaracha
USU Championship 2004
93
4991
1341
Device
USU Championship 2004
442
1137
1348
Goat in the Garden 2
Spring School Contest 2005
2818
182
1351
Good Gnusmas – Dead Gnusmas
Spring School Contest 2005
972
524
1372
Death Star
Ural Championship 2005. Round 1
76
6002
1373
Pictura ex Machina
Ural Championship 2005. Round 1
601
845
1384
Goat in the Garden 4
Petrozavodsk Summer 2005. Moscow+Ural Contest
92
5061
1397
Points Game
272
1707
1405
Goat in the Garden 5
Autumn School Contest 2005
713
714
1412
Autumn Tide
USU Championship 2005
330
1514
1415
Mobile Life
USU Championship 2005
46
9190
1418
Military Story
USU Championship 2005
557
908
1422
Fireflies
Timus Top Coders: First Challenge
576
860
1429
Biscuits
Timus Top Coders: First Challenge
179
2666
1436
Billboard
USU Personal Contest 2006
592
835
1442
Floo Powder
Ural Championship 2006
144
3243
1444
Elephpotamus
Ural Championship 2006
1763
282
1451
Beerhouse Tale
Timus Top Coders: Second Challenge
490
993
1460
Wires
Petrozavodsk Winter 2006. USU Contest
105
4222
1464
Light
Petrozavodsk Winter 2006. USU Contest
156
2925
1469
No Smoking!
Petrozavodsk Summer 2006. Ural+Orel Contest
492
959
1475
Ryaba Hen
Petrozavodsk Summer 2006. Ural+Orel Contest
114
3881
1477
Airplanes
Petrozavodsk Summer 2006. Ural+Orel Contest
150
3008
1482
Triangle Game
USU Championship 2006
146
3077
1489
Points on a Parallelepiped
Autumn School Contest 2006
1232
386
1504
Good Manners
NEERC 2006 Eastern Subregional
205
2223
1514
National Park
Timus Top Coders: Third Challenge
248
1834
1520
Empire Strikes Back
Timus Top Coders: Third Challenge
183
2452
1538
Towers of Guard
USU Personal Contest 2007
351
1290
1550
Dean's Pyramid 3
Ural Championship 2007
764
596
1556
Multishot in the Secret Cow Level
Petrozavodsk Summer 2007. NSU Contest
38
9307
1562
GM-pineapple
USU Championship 2007
1092
404
1566
Triangular Postcards
USU Championship 2007
134
3094
1572
Yekaterinozavodsk Great Well
Autumn School Contest 2007
3057
145
1578
Mammoth Hunt
Autumn School Contest 2007
498
876
1583
Cheese
NEERC 2007 Eastern Subregional
225
1887
1588
Jamaica
NEERC 2007 Eastern Subregional
1357
324
1599
Winding Number
106
1921
1600
Airport
USU Personal Contest 2008
768
555
1616
Square Country 4
Ural Championship 2008
98
3977
1626
Interfering Segment
Petrozavodsk Winter 2008. ITMO Contest
41
8180
1632
Lasers
USU Championship 2008
82
4482
1637
Triangle Game 2
USU Championship 2008
115
3299
1640
Circle of Winter
Autumn School Contest 2008
2360
173
1647
Divide an Island!
Autumn School Contest 2008
486
829
1653
Death Conveyor
NEERC 2008 Eastern Subregional
51
6730
1659
Regular Triangles
NEERC 2008 Eastern Subregional
625
647
1660
The Island of Bad Luck
Petrozavodsk Winter 2008. USU Contest
52
6554
1662
Goat in the Garden 6
Petrozavodsk Winter 2008. USU Contest
78
4618
1679
Scrooge's Tower
Petrozavodsk Summer 2008. USU Contest
390
1011
1681
Brother Bear's Garden
USU Personal Contest 2009
99
3673
1686
Photovoltaic Spaceship
USU Personal Contest 2009
260
1483
1697
Sniper Shot
Petrozavodsk Winter 2009. USU Contest
62
5544
1703
Robotic Arm
Ural Championship 2009
299
1286
1710
Boris, You Are Wrong!
Ural Championship 2009
600
651
1719
Kill the Shaitan-Boss
NEERC 2009 Eastern Subregional
247
1485
1722
Observation Deck
Ural Regional School Programming Contest 2009
277
1328
1733
Forgotten Technology
USU Championship 2009
73
4576
1750
Pakhom and the Gully
Petrozavodsk Summer 2009. Ufa SATU Contest
293
1231
1753
Bookshelf
USU Personal Contest 2010
1121
326
1754
Explosion in a Pyramid
USU Personal Contest 2010
564
643
1768
Circular Strings
Ural Championship 2010
303
1172
1775
Space Bowling
Ural SU Championship 2010
372
922
1793
Tray 2
Ural Regional School Programming Contest 2010
896
388
1808
Chapaev at the Planet Ocean
NEERC 2010 Eastern Subregional
171
1937
1824
Ifrit Bomber
USU Personal Contest 2011
313
1052
1825
Ifrit Bomber 2
USU Personal Contest 2011
363
911
1836
Babel Fish
Ural Championship 2011
282
1153
1839
The Mentaculus
Ural Championship 2011
123
2530
1840
Victim of Advertising
Ural Championship 2011
30
8414
1874
Football Goal
Ural Regional School Programming Contest 2011
1675
192
1875
Angry Birds
Ural Regional School Programming Contest 2011
327
959
1883
Ent's Birthday
Ural Regional School Programming Contest 2011
263
1184
1894
Non-Flying Weather
NEERC 2011 Eastern Subregional
209
1474
1909
Space Recon
Ural Championship 2012
58
4366
1913
Titan Ruins: Alignment of Forces
NEERC 2012 Eastern Subregional
150
1852
1919
Titan Ruins: Transformation of Cylinders
NEERC 2012 Eastern Subregional
135
2044
1927
Herbs and Magic
Ural Regional School Programming Contest 2012
271
1053
1938
Caribbean Triangle
Ural FU Championship 2012
50
4914
1955
Boss, I Can See You!
Petrozavodsk Winter 2013. Kontur Cup. ChU 2013 Selection
80
3104
1956
Fire Signals
Petrozavodsk Winter 2013. Kontur Cup. ChU 2013 Selection
107
2388
1963
Kite
Ural FU Personal Contest 2013
575
477
1983
Nectar Gathering
Ural FU Championship 2013
159
1601
1988
Planet Ocean Landing
Ural FU Championship 2013
230
1127
2016
Magic and Science
NEERC 2014 Eastern Subregional
19
8482
2032
Conspiracy Theory and Rebranding
Ural Regional School Programming Contest 2014
313
759
2050
3D-modeling
Ural Championship 2015
65
3098
2054
Astronomy
Ural Championship 2015
20
7744
2067
Friends and Berries
Ural Regional School Programming Contest 2015
707
309
2076
Vasiana
Qualification of Eastern Subregional 2015
17
7894
2099
Space Invader
Ural FU Personal Contest 2014
309
640
2101
Knight's Shield
Ural FU Junior Championship 2016
102
1747
2121
Intersection of Parabolas
Petrozavodsk Summer 2018. umnik_team Contest
191
696
2139
Experiment with Juice
Ural School Programming Contest 2019
22
4075
2148
Insane Shot
Ural School Programming Contest 2019
251
500
2154
Flight on a Cannonball
Ural School Programming Contest 2020
34
2358
2165
Cake Cutter
Ural School Programming Contest 2021
20
1784
2166
Two Roads
Ural School Programming Contest 2022
17
1981
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