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Problem set. Mathematical Problems
Solved problems:
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ID
Title
Source
Authors
Difficulty
1011
Conductors
USU Championship 1997
6394
248
1014
Product of Digits
USU Local Contest. 1999
16878
94
1024
Permutations
Autumn School Contest 2000
4903
323
1041
Nikifor
USU Championship 2000
340
4472
1047
Simple Calculations
USU Local Contest. March 2000
5062
305
1053
Pinocchio
NEERC 2000 Central Subregional
4477
344
1055
Combinations
NEERC 2000 Central Subregional
3626
424
1066
Garland
NEERC 2000
2495
583
1098
Questions
2262
556
1142
Relations
DSAP Vietnam Online Contest November 2001
3296
155
1174
Weird Permutations
Romanian Online Contest December 2001
706
716
1200
Horns and Hoofs
USU Local Contest. March 2002
1987
257
1206
Sum of Digits of the Sum of Numbers
USU Local Contest. March 2002
4119
124
1209
1, 10, 100, 1000...
Autumn School Contest 2002
15133
34
1217
Unlucky Tickets
USU Championship 2002
1257
409
1222
Chernobyl’ Eagles
USU Championship 2002
3583
144
1233
Amusing Numbers
NEERC 2002
562
906
1247
Check a Sequence
USU Personal Contest 2003
2155
240
1255
Graveyard of the Cosa Nostra
USU Local Contest. March 2003
1834
282
1259
How to Become Star?
Autumn School Contest 2003
1307
397
1266
Kirchhoff's Law
USU Championship 2003
364
1400
1275
Knights of the Round Table
NEERC 2003 Central Subregional
223
2248
1283
Dwarf
USU Personal Contest 2004
4539
116
1289
One Way Ticket
USU Personal Contest 2004
1307
399
1292
Mars Space Stations
Spring School Contest 2004
1374
380
1295
Crazy Notions
Spring School Contest 2004
3468
151
1321
Floor Indicator
Ural Championship 2004. Round 2
378
1356
1335
White Thesis
Autumn School Contest 2004
2888
183
1336
Problem of Ben Betsalel
Autumn School Contest 2004
4305
123
1349
Farm
Spring School Contest 2005
10435
51
1360
Philosophical Dispute
Ural Championship 2005. Round 2
407
1274
1366
Presents
Ural Championship 2005. Round 2
1006
523
1385
Interesting Number
Petrozavodsk Summer 2005. MSU+USU Contest
2148
247
1402
Cocktails
Autumn School Contest 2005
4086
130
1417
Space Poker 2
USU Championship 2005
272
1884
1420
Integer-Valued Complex Division
USU Championship 2005
290
1771
1428
Jedi Riddle
Timus Top Coders: First Challenge
1035
498
1467
Sum of Degrees
Petrozavodsk Winter 2006. USU Contest
403
1218
1503
Polynomial
NEERC 2006 Eastern Subregional
280
1709
1561
Winnie the Pooh
Petrozavodsk Summer 2007. NSU Contest
154
2838
1582
Bookmakers
NEERC 2007 Eastern Subregional
3748
123
1591
Abstract Thinking
NEERC 2007 Eastern Subregional
431
1048
1605
Devil's Sequence
USU Personal Contest 2008
733
607
1633
Hippogriffs
USU Championship 2008
563
754
1661
Dodecahedron
Petrozavodsk Winter 2008. USU Contest
111
3524
1666
Vasya Ferrari
Petrozavodsk Winter 2008. USU Contest
322
1284
2125
Continue the Sequence
Petrozavodsk Summer 2018. umnik_team contest
50
2816
2127
Determinant of a Graph
Petrozavodsk Summer 2018. umnik_team contest
45
3073
2138
The Good, the Bad and the Ugly
Ural School Programming Contest 2019
1436
111
2145
Olympiad for Everyone
Ural School Programming Contest 2019
417
374
2158
Two progressions
Ural School Programming Contest 2021
40
1709
2171
Two Progressions 2
Ural School Programming Contest 2022
52
1379
2177
Vadim and Sudoku: XV-Pairs
Ural School Programming Contest 2023
37
1233
2191
Piecewise Linear Functions
ICPC Ural Regional Contest Qualifier 2022
23
1753
2212
Prefossum
University-Academy Olympiad 2024
27
1025
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