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Solved problems:
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ID
Title
Source
Authors
Difficulty
1020
Rope
Autumn School Contest 2000
15314
99
1030
Titanic
Ural Championship 1999
1711
877
1043
Cover an Arc
USU Championship 2000
913
1619
1046
Geometrical Dreams
USU Local Contest. March 2000
782
1864
1052
Rabbit Hunt
USU Local Contest. March 2000
6323
233
1058
Chocolate
NEERC 2000 Central Subregional
518
2785
1065
Frontier
NEERC 2000
995
1388
1075
Thread in a Space
USU Personal Contest 2001
661
2021
1084
Goat in the Garden
Spring School Contest 2001
8921
149
1093
Darts
USU Local Contest. March 2001
635
1959
1103
Pencils and Circles
Tetrahedron Team Online Contest May 2001
964
499
1111
Squares
Bulgarian Online Contest September 2001
1249
388
1130
Nikifor's Walk
USU Championship 2001
513
935
1159
Fence
NEERC 2001 Northern Subregional
644
749
1163
Chapaev
NEERC 2001 Northern Subregional
104
4296
1168
Radio Stations
Romanian Online Contest December 2001
661
730
1170
Desert
Romanian Online Contest December 2001
322
1476
1185
Wall
NEERC 2001
1623
301
1192
Ball in a Dream
Spring School Contest 2002
4532
108
1199
Mouse
127
3402
1207
Median on the Plane
USU Local Contest. March 2002
3897
126
1215
Exactness of Projectile Hit
Autumn School Contest 2002
1648
299
1232
Asteroid Landing
NEERC 2002 Central Subregional
202
2338
1234
Bricks
NEERC 2002
721
679
1239
Ghost Busters
NEERC 2002
152
3063
1246
Tethered Dog
USU Personal Contest 2003
1495
331
1256
Cemetery Guard
USU Local Contest. March 2003
210
2264
1258
Pool
Autumn School Contest 2003
1196
416
1265
Mirror
USU Championship 2003
317
1534
1271
Sailing Directions
USU Championship 2003
98
4646
1281
River Basin
NEERC 2003 Central Subregional
349
1398
1285
Thread in a Hyperspace
USU Personal Contest 2004
300
1625
1294
Mars Satellites
Spring School Contest 2004
1608
311
1305
Convex Hull
Ural Championship 1998
708
702
1308
Dean's Pyramid
Ural Championship 2004. Round 1
168
2834
1312
Tray
Ural Championship 2004. Round 1
160
2968
1317
Hail
Ural Championship 2004. Round 2
458
1078
1328
Fireball
Autumn School Contest 2004
353
1397
1331
Vladislava
Autumn School Contest 2004
500
995
1332
Genie Bomber
Autumn School Contest 2004
805
622
1333
Genie Bomber 2
Autumn School Contest 2004
2334
216
1340
Cucaracha
USU Championship 2004
92
4990
1341
Device
USU Championship 2004
441
1129
1348
Goat in the Garden 2
Spring School Contest 2005
2717
187
1351
Good Gnusmas – Dead Gnusmas
Spring School Contest 2005
966
522
1372
Death Star
Ural Championship 2005. Round 1
75
6013
1373
Pictura ex Machina
Ural Championship 2005. Round 1
596
843
1384
Goat in the Garden 4
Petrozavodsk Summer 2005. Moscow+Ural Contest
92
5011
1397
Points Game
272
1688
1405
Goat in the Garden 5
Autumn School Contest 2005
706
714
1412
Autumn Tide
USU Championship 2005
327
1512
1415
Mobile Life
USU Championship 2005
45
9264
1418
Military Story
USU Championship 2005
551
908
1422
Fireflies
Timus Top Coders: First Challenge
564
869
1429
Biscuits
Timus Top Coders: First Challenge
178
2652
1436
Billboard
USU Personal Contest 2006
585
836
1442
Floo Powder
Ural Championship 2006
145
3188
1444
Elephpotamus
Ural Championship 2006
1712
287
1451
Beerhouse Tale
Timus Top Coders: Second Challenge
482
999
1460
Wires
Petrozavodsk Winter 2006. USU Contest
105
4175
1464
Light
Petrozavodsk Winter 2006. USU Contest
156
2892
1469
No Smoking!
Petrozavodsk Summer 2006. Ural+Orel Contest
474
983
1475
Ryaba Hen
Petrozavodsk Summer 2006. Ural+Orel Contest
115
3806
1477
Airplanes
Petrozavodsk Summer 2006. Ural+Orel Contest
149
2992
1482
Triangle Game
USU Championship 2006
146
3042
1489
Points on a Parallelepiped
Autumn School Contest 2006
1207
389
1504
Good Manners
NEERC 2006 Eastern Subregional
203
2218
1514
National Park
Timus Top Coders: Third Challenge
249
1805
1520
Empire Strikes Back
Timus Top Coders: Third Challenge
181
2448
1538
Towers of Guard
USU Personal Contest 2007
350
1278
1550
Dean's Pyramid 3
Ural Championship 2007
758
593
1556
Multishot in the Secret Cow Level
Petrozavodsk Summer 2007. NSU Contest
38
9186
1562
GM-pineapple
USU Championship 2007
1062
410
1566
Triangular Postcards
USU Championship 2007
133
3074
1572
Yekaterinozavodsk Great Well
Autumn School Contest 2007
3035
144
1578
Mammoth Hunt
Autumn School Contest 2007
493
873
1583
Cheese
NEERC 2007 Eastern Subregional
223
1878
1588
Jamaica
NEERC 2007 Eastern Subregional
1351
322
1599
Winding Number
101
1933
1600
Airport
USU Personal Contest 2008
761
553
1616
Square Country 4
Ural Championship 2008
97
3958
1626
Interfering Segment
Petrozavodsk Winter 2008. ITMO Contest
42
7904
1632
Lasers
USU Championship 2008
83
4367
1637
Triangle Game 2
USU Championship 2008
113
3302
1640
Circle of Winter
Autumn School Contest 2008
2338
172
1647
Divide an Island!
Autumn School Contest 2008
479
828
1653
Death Conveyor
NEERC 2008 Eastern Subregional
51
6628
1659
Regular Triangles
NEERC 2008 Eastern Subregional
621
641
1660
The Island of Bad Luck
Petrozavodsk Winter 2008. USU Contest
52
6453
1662
Goat in the Garden 6
Petrozavodsk Winter 2008. USU Contest
77
4599
1679
Scrooge's Tower
Petrozavodsk Summer 2008. USU Contest
386
1006
1681
Brother Bear's Garden
USU Personal Contest 2009
97
3683
1686
Photovoltaic Spaceship
USU Personal Contest 2009
257
1476
1697
Sniper Shot
Petrozavodsk Winter 2009. USU Contest
62
5456
1703
Robotic Arm
Ural Championship 2009
281
1344
1710
Boris, You Are Wrong!
Ural Championship 2009
598
643
1719
Kill the Shaitan-Boss
NEERC 2009 Eastern Subregional
242
1489
1722
Observation Deck
Ural Regional School Programming Contest 2009
275
1314
1733
Forgotten Technology
USU Championship 2009
70
4666
1750
Pakhom and the Gully
Petrozavodsk Summer 2009. Ufa SATU Contest
290
1221
1753
Bookshelf
USU Personal Contest 2010
1113
323
1754
Explosion in a Pyramid
USU Personal Contest 2010
560
636
1768
Circular Strings
Ural Championship 2010
299
1165
1775
Space Bowling
Ural SU Championship 2010
368
914
1793
Tray 2
Ural Regional School Programming Contest 2010
887
385
1808
Chapaev at the Planet Ocean
NEERC 2010 Eastern Subregional
171
1900
1824
Ifrit Bomber
USU Personal Contest 2011
308
1047
1825
Ifrit Bomber 2
USU Personal Contest 2011
361
897
1836
Babel Fish
Ural Championship 2011
280
1136
1839
The Mentaculus
Ural Championship 2011
123
2478
1840
Victim of Advertising
Ural Championship 2011
29
8450
1874
Football Goal
Ural Regional School Programming Contest 2011
1657
190
1875
Angry Birds
Ural Regional School Programming Contest 2011
323
949
1883
Ent's Birthday
Ural Regional School Programming Contest 2011
258
1180
1894
Non-Flying Weather
NEERC 2011 Eastern Subregional
200
1503
1909
Space Recon
Ural Championship 2012
57
4321
1913
Titan Ruins: Alignment of Forces
NEERC 2012 Eastern Subregional
149
1817
1919
Titan Ruins: Transformation of Cylinders
NEERC 2012 Eastern Subregional
135
1993
1927
Herbs and Magic
Ural Regional School Programming Contest 2012
266
1045
1938
Caribbean Triangle
Ural FU Championship 2012
49
4872
1955
Boss, I Can See You!
Petrozavodsk Winter 2013. Kontur Cup. ChU 2013 Selection
80
3020
1956
Fire Signals
Petrozavodsk Winter 2013. Kontur Cup. ChU 2013 Selection
106
2343
1963
Kite
Ural FU Personal Contest 2013
570
468
1983
Nectar Gathering
Ural FU Championship 2013
158
1564
1988
Planet Ocean Landing
Ural FU Championship 2013
226
1114
2016
Magic and Science
NEERC 2014 Eastern Subregional
18
8501
2032
Conspiracy Theory and Rebranding
Ural Regional School Programming Contest 2014
305
753
2050
3D-modeling
Ural Championship 2015
64
3030
2054
Astronomy
Ural Championship 2015
20
7474
2067
Friends and Berries
Ural Regional School Programming Contest 2015
694
303
2076
Vasiana
Qualification of Eastern Subregional 2015
16
7878
2099
Space Invader
Ural FU Personal Contest 2014
307
617
2101
Knight's Shield
Ural FU Junior Championship 2016
99
1717
2121
Intersection of Parabolas
Petrozavodsk Summer 2018. umnik_team Contest
176
703
2139
Experiment with Juice
Ural School Programming Contest 2019
21
3910
2148
Insane Shot
Ural School Programming Contest 2019
241
483
2154
Flight on a Cannonball
Ural School Programming Contest 2020
32
2245
2165
Cake Cutter
Ural School Programming Contest 2021
16
1675
2166
Two Roads
Ural School Programming Contest 2022
17
1611
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