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Solved problems:
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ID
Title
Source
Authors
Difficulty
1020
Rope
Autumn School Contest 2000
15320
99
1030
Titanic
Ural Championship 1999
1712
877
1043
Cover an Arc
USU Championship 2000
913
1620
1046
Geometrical Dreams
USU Local Contest. March 2000
782
1865
1052
Rabbit Hunt
USU Local Contest. March 2000
6325
233
1058
Chocolate
NEERC 2000 Central Subregional
518
2786
1065
Frontier
NEERC 2000
995
1389
1075
Thread in a Space
USU Personal Contest 2001
661
2022
1084
Goat in the Garden
Spring School Contest 2001
8925
149
1093
Darts
USU Local Contest. March 2001
635
1960
1103
Pencils and Circles
Tetrahedron Team Online Contest May 2001
966
498
1111
Squares
Bulgarian Online Contest September 2001
1250
388
1130
Nikifor's Walk
USU Championship 2001
514
934
1159
Fence
NEERC 2001 Northern Subregional
645
748
1163
Chapaev
NEERC 2001 Northern Subregional
104
4299
1168
Radio Stations
Romanian Online Contest December 2001
663
728
1170
Desert
Romanian Online Contest December 2001
322
1476
1185
Wall
NEERC 2001
1628
300
1192
Ball in a Dream
Spring School Contest 2002
4535
108
1199
Mouse
127
3404
1207
Median on the Plane
USU Local Contest. March 2002
3912
125
1215
Exactness of Projectile Hit
Autumn School Contest 2002
1652
298
1232
Asteroid Landing
NEERC 2002 Central Subregional
202
2339
1234
Bricks
NEERC 2002
724
677
1239
Ghost Busters
NEERC 2002
152
3065
1246
Tethered Dog
USU Personal Contest 2003
1496
331
1256
Cemetery Guard
USU Local Contest. March 2003
210
2265
1258
Pool
Autumn School Contest 2003
1196
416
1265
Mirror
USU Championship 2003
317
1535
1271
Sailing Directions
USU Championship 2003
98
4648
1281
River Basin
NEERC 2003 Central Subregional
349
1399
1285
Thread in a Hyperspace
USU Personal Contest 2004
300
1626
1294
Mars Satellites
Spring School Contest 2004
1608
312
1305
Convex Hull
Ural Championship 1998
710
701
1308
Dean's Pyramid
Ural Championship 2004. Round 1
168
2836
1312
Tray
Ural Championship 2004. Round 1
160
2969
1317
Hail
Ural Championship 2004. Round 2
458
1079
1328
Fireball
Autumn School Contest 2004
353
1398
1331
Vladislava
Autumn School Contest 2004
501
993
1332
Genie Bomber
Autumn School Contest 2004
807
621
1333
Genie Bomber 2
Autumn School Contest 2004
2336
216
1340
Cucaracha
USU Championship 2004
92
4993
1341
Device
USU Championship 2004
441
1129
1348
Goat in the Garden 2
Spring School Contest 2005
2719
187
1351
Good Gnusmas – Dead Gnusmas
Spring School Contest 2005
967
522
1372
Death Star
Ural Championship 2005. Round 1
76
5946
1373
Pictura ex Machina
Ural Championship 2005. Round 1
597
842
1384
Goat in the Garden 4
Petrozavodsk Summer 2005. Moscow+Ural Contest
92
5014
1397
Points Game
272
1689
1405
Goat in the Garden 5
Autumn School Contest 2005
708
712
1412
Autumn Tide
USU Championship 2005
327
1513
1415
Mobile Life
USU Championship 2005
45
9269
1418
Military Story
USU Championship 2005
552
907
1422
Fireflies
Timus Top Coders: First Challenge
565
868
1429
Biscuits
Timus Top Coders: First Challenge
178
2654
1436
Billboard
USU Personal Contest 2006
586
835
1442
Floo Powder
Ural Championship 2006
145
3190
1444
Elephpotamus
Ural Championship 2006
1720
286
1451
Beerhouse Tale
Timus Top Coders: Second Challenge
485
993
1460
Wires
Petrozavodsk Winter 2006. USU Contest
105
4177
1464
Light
Petrozavodsk Winter 2006. USU Contest
156
2894
1469
No Smoking!
Petrozavodsk Summer 2006. Ural+Orel Contest
475
982
1475
Ryaba Hen
Petrozavodsk Summer 2006. Ural+Orel Contest
115
3809
1477
Airplanes
Petrozavodsk Summer 2006. Ural+Orel Contest
149
2994
1482
Triangle Game
USU Championship 2006
146
3044
1489
Points on a Parallelepiped
Autumn School Contest 2006
1208
389
1504
Good Manners
NEERC 2006 Eastern Subregional
203
2219
1514
National Park
Timus Top Coders: Third Challenge
249
1807
1520
Empire Strikes Back
Timus Top Coders: Third Challenge
181
2450
1538
Towers of Guard
USU Personal Contest 2007
350
1279
1550
Dean's Pyramid 3
Ural Championship 2007
760
592
1556
Multishot in the Secret Cow Level
Petrozavodsk Summer 2007. NSU Contest
38
9192
1562
GM-pineapple
USU Championship 2007
1063
410
1566
Triangular Postcards
USU Championship 2007
133
3077
1572
Yekaterinozavodsk Great Well
Autumn School Contest 2007
3037
144
1578
Mammoth Hunt
Autumn School Contest 2007
495
870
1583
Cheese
NEERC 2007 Eastern Subregional
224
1872
1588
Jamaica
NEERC 2007 Eastern Subregional
1352
322
1599
Winding Number
101
1937
1600
Airport
USU Personal Contest 2008
762
552
1616
Square Country 4
Ural Championship 2008
97
3961
1626
Interfering Segment
Petrozavodsk Winter 2008. ITMO Contest
42
7911
1632
Lasers
USU Championship 2008
83
4371
1637
Triangle Game 2
USU Championship 2008
114
3278
1640
Circle of Winter
Autumn School Contest 2008
2339
173
1647
Divide an Island!
Autumn School Contest 2008
480
827
1653
Death Conveyor
NEERC 2008 Eastern Subregional
51
6634
1659
Regular Triangles
NEERC 2008 Eastern Subregional
623
639
1660
The Island of Bad Luck
Petrozavodsk Winter 2008. USU Contest
52
6458
1662
Goat in the Garden 6
Petrozavodsk Winter 2008. USU Contest
77
4602
1679
Scrooge's Tower
Petrozavodsk Summer 2008. USU Contest
387
1004
1681
Brother Bear's Garden
USU Personal Contest 2009
98
3652
1686
Photovoltaic Spaceship
USU Personal Contest 2009
257
1477
1697
Sniper Shot
Petrozavodsk Winter 2009. USU Contest
62
5461
1703
Robotic Arm
Ural Championship 2009
283
1336
1710
Boris, You Are Wrong!
Ural Championship 2009
599
643
1719
Kill the Shaitan-Boss
NEERC 2009 Eastern Subregional
242
1490
1722
Observation Deck
Ural Regional School Programming Contest 2009
275
1315
1733
Forgotten Technology
USU Championship 2009
70
4670
1750
Pakhom and the Gully
Petrozavodsk Summer 2009. Ufa SATU Contest
290
1223
1753
Bookshelf
USU Personal Contest 2010
1113
323
1754
Explosion in a Pyramid
USU Personal Contest 2010
562
634
1768
Circular Strings
Ural Championship 2010
299
1166
1775
Space Bowling
Ural SU Championship 2010
369
913
1793
Tray 2
Ural Regional School Programming Contest 2010
888
385
1808
Chapaev at the Planet Ocean
NEERC 2010 Eastern Subregional
172
1891
1824
Ifrit Bomber
USU Personal Contest 2011
308
1048
1825
Ifrit Bomber 2
USU Personal Contest 2011
362
896
1836
Babel Fish
Ural Championship 2011
280
1138
1839
The Mentaculus
Ural Championship 2011
123
2481
1840
Victim of Advertising
Ural Championship 2011
29
8460
1874
Football Goal
Ural Regional School Programming Contest 2011
1658
190
1875
Angry Birds
Ural Regional School Programming Contest 2011
324
948
1883
Ent's Birthday
Ural Regional School Programming Contest 2011
258
1181
1894
Non-Flying Weather
NEERC 2011 Eastern Subregional
200
1505
1909
Space Recon
Ural Championship 2012
57
4327
1913
Titan Ruins: Alignment of Forces
NEERC 2012 Eastern Subregional
150
1809
1919
Titan Ruins: Transformation of Cylinders
NEERC 2012 Eastern Subregional
135
1996
1927
Herbs and Magic
Ural Regional School Programming Contest 2012
266
1047
1938
Caribbean Triangle
Ural FU Championship 2012
49
4878
1955
Boss, I Can See You!
Petrozavodsk Winter 2013. Kontur Cup. ChU 2013 Selection
80
3024
1956
Fire Signals
Petrozavodsk Winter 2013. Kontur Cup. ChU 2013 Selection
106
2346
1963
Kite
Ural FU Personal Contest 2013
571
468
1983
Nectar Gathering
Ural FU Championship 2013
158
1567
1988
Planet Ocean Landing
Ural FU Championship 2013
226
1115
2016
Magic and Science
NEERC 2014 Eastern Subregional
18
8516
2032
Conspiracy Theory and Rebranding
Ural Regional School Programming Contest 2014
306
752
2050
3D-modeling
Ural Championship 2015
64
3036
2054
Astronomy
Ural Championship 2015
20
7488
2067
Friends and Berries
Ural Regional School Programming Contest 2015
695
303
2076
Vasiana
Qualification of Eastern Subregional 2015
16
7895
2099
Space Invader
Ural FU Personal Contest 2014
310
613
2101
Knight's Shield
Ural FU Junior Championship 2016
100
1706
2121
Intersection of Parabolas
Petrozavodsk Summer 2018. umnik_team Contest
177
702
2139
Experiment with Juice
Ural School Programming Contest 2019
21
3926
2148
Insane Shot
Ural School Programming Contest 2019
245
477
2154
Flight on a Cannonball
Ural School Programming Contest 2020
32
2257
2165
Cake Cutter
Ural School Programming Contest 2021
16
1695
2166
Two Roads
Ural School Programming Contest 2022
17
1631
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