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Problem set. Mathematical Problems
Solved problems:
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ID
Title
Source
Authors
Difficulty
1011
Conductors
USU Championship 1997
6372
248
1014
Product of Digits
USU Local Contest. 1999
16816
94
1024
Permutations
Autumn School Contest 2000
4890
322
1041
Nikifor
USU Championship 2000
331
4565
1047
Simple Calculations
USU Local Contest. March 2000
5050
304
1053
Pinocchio
NEERC 2000 Central Subregional
4463
343
1055
Combinations
NEERC 2000 Central Subregional
3617
423
1066
Garland
NEERC 2000
2486
582
1098
Questions
2254
555
1142
Relations
DSAP Vietnam Online Contest November 2001
3281
155
1174
Weird Permutations
Romanian Online Contest December 2001
704
714
1200
Horns and Hoofs
USU Local Contest. March 2002
1983
256
1206
Sum of Digits of the Sum of Numbers
USU Local Contest. March 2002
4104
124
1209
1, 10, 100, 1000...
Autumn School Contest 2002
15052
34
1217
Unlucky Tickets
USU Championship 2002
1253
408
1222
Chernobyl’ Eagles
USU Championship 2002
3565
144
1233
Amusing Numbers
NEERC 2002
561
903
1247
Check a Sequence
USU Personal Contest 2003
2134
241
1255
Graveyard of the Cosa Nostra
USU Local Contest. March 2003
1825
282
1259
How to Become Star?
Autumn School Contest 2003
1302
397
1266
Kirchhoff's Law
USU Championship 2003
360
1408
1275
Knights of the Round Table
NEERC 2003 Central Subregional
221
2256
1283
Dwarf
USU Personal Contest 2004
4519
115
1289
One Way Ticket
USU Personal Contest 2004
1305
398
1292
Mars Space Stations
Spring School Contest 2004
1367
380
1295
Crazy Notions
Spring School Contest 2004
3445
151
1321
Floor Indicator
Ural Championship 2004. Round 2
377
1353
1335
White Thesis
Autumn School Contest 2004
2876
182
1336
Problem of Ben Betsalel
Autumn School Contest 2004
4275
123
1349
Farm
Spring School Contest 2005
10386
51
1360
Philosophical Dispute
Ural Championship 2005. Round 2
404
1277
1366
Presents
Ural Championship 2005. Round 2
1001
523
1385
Interesting Number
Petrozavodsk Summer 2005. MSU+USU Contest
2136
247
1402
Cocktails
Autumn School Contest 2005
4066
130
1417
Space Poker 2
USU Championship 2005
269
1894
1420
Integer-Valued Complex Division
USU Championship 2005
286
1786
1428
Jedi Riddle
Timus Top Coders: First Challenge
1031
498
1467
Sum of Degrees
Petrozavodsk Winter 2006. USU Contest
402
1214
1503
Polynomial
NEERC 2006 Eastern Subregional
278
1711
1561
Winnie the Pooh
Petrozavodsk Summer 2007. NSU Contest
151
2873
1582
Bookmakers
NEERC 2007 Eastern Subregional
3727
123
1591
Abstract Thinking
NEERC 2007 Eastern Subregional
430
1044
1605
Devil's Sequence
USU Personal Contest 2008
726
609
1633
Hippogriffs
USU Championship 2008
563
749
1661
Dodecahedron
Petrozavodsk Winter 2008. USU Contest
107
3617
1666
Vasya Ferrari
Petrozavodsk Winter 2008. USU Contest
321
1279
2125
Continue the Sequence
Petrozavodsk Summer 2018. umnik_team contest
46
2936
2127
Determinant of a Graph
Petrozavodsk Summer 2018. umnik_team contest
40
3288
2138
The Good, the Bad and the Ugly
Ural School Programming Contest 2019
1378
112
2145
Olympiad for Everyone
Ural School Programming Contest 2019
406
373
2158
Two progressions
Ural School Programming Contest 2021
36
1748
2171
Two Progressions 2
Ural School Programming Contest 2022
48
1387
2177
Vadim and Sudoku: XV-Pairs
Ural School Programming Contest 2023
32
1256
2191
Piecewise Linear Functions
ICPC Ural Regional Contest Qualifier 2022
17
1949
2212
Prefossum
University-Academy Olympiad 2024
19
1124
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