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Problem set. Volume 4
Solved problems:
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ID
Title
Source
Authors
Difficulty
1300
Taxes
Ural Championship 1998
168
2875
1301
Cube in Labyrinth
Ural Championship 1998
677
745
1302
Delta-wave
Ural Championship 1998
1457
349
1303
Minimal Coverage
Ural Championship 1998
2829
180
1304
Parallelepiped
Ural Championship 1998
257
1917
1305
Convex Hull
Ural Championship 1998
715
706
1306
Sequence Median
Ural Championship 1998
3523
145
1307
Archiver
Ural Championship 2004. Round 1
387
1290
1308
Dean's Pyramid
Ural Championship 2004. Round 1
170
2844
1309
Dispute
Ural Championship 2004. Round 1
838
604
1310
ACM Diagnostics
Ural Championship 2004. Round 1
458
1094
1311
Stable Construction
Ural Championship 2004. Round 1
340
1463
1312
Tray
Ural Championship 2004. Round 1
160
3012
1313
Some Words about Sport
Ural Championship 2004. Round 1
15083
34
1314
Chase in Subway
Ural Championship 2004. Round 1
856
591
1315
MDPAR and MIIAR
Ural Championship 2004. Round 1
265
1862
1316
Electronic Auction
Ural Championship 2004. Round 1
1162
437
1317
Hail
Ural Championship 2004. Round 2
469
1069
1318
Logarithm
Ural Championship 2004. Round 2
356
1399
1319
Hotel
Ural Championship 2004. Round 2
13201
39
1320
Graph Decomposition
Ural Championship 2004. Round 2
1772
287
1321
Floor Indicator
Ural Championship 2004. Round 2
369
1351
1322
Spy
Ural Championship 2004. Round 2
2737
186
1323
Classmates
Ural Championship 2004. Round 2
611
825
1324
Extra Spaces
Ural Championship 2004. Round 2
538
934
1325
Dirt
Ural Championship 2004. Round 2
941
538
1326
Bottle Taps
Ural Championship 2004. Round 2
1294
393
1327
Fuses
Autumn School Contest 2004
11030
47
1328
Fireball
Autumn School Contest 2004
356
1406
1329
Galactic History
Autumn School Contest 2004
1104
462
1330
Intervals
Autumn School Contest 2004
5375
96
1331
Vladislava
Autumn School Contest 2004
505
999
1332
Genie Bomber
Autumn School Contest 2004
816
623
1333
Genie Bomber 2
Autumn School Contest 2004
2370
216
1334
Checkers
Autumn School Contest 2004
943
540
1335
White Thesis
Autumn School Contest 2004
2839
181
1336
Problem of Ben Betsalel
Autumn School Contest 2004
4221
122
1337
Bureaucracy
Autumn School Contest 2004
320
1560
1338
Automobiles
USU Championship 2004
276
1806
1339
Babies
USU Championship 2004
588
864
1340
Cucaracha
USU Championship 2004
94
4965
1341
Device
USU Championship 2004
444
1137
1342
Enterprise
USU Championship 2004
684
744
1343
Fairy Tale
USU Championship 2004
1230
416
1344
Gigantic Turnip
USU Championship 2004
105
4490
1345
HTML
USU Championship 2004
347
1447
1346
Intervals of Monotonicity
USU Championship 2004
1728
297
1347
Blog
Spring School Contest 2005
365
1378
1348
Goat in the Garden 2
Spring School Contest 2005
2830
182
1349
Farm
Spring School Contest 2005
10209
51
1350
Canteen
Spring School Contest 2005
1302
394
1351
Good Gnusmas – Dead Gnusmas
Spring School Contest 2005
974
525
1352
Mersenne Primes
Spring School Contest 2005
3947
131
1353
Milliard Vasya's Function
Spring School Contest 2005
4996
103
1354
Palindrome. Again Palindrome
Spring School Contest 2005
3733
138
1355
Bald Spot Revisited
Spring School Contest 2005
2438
211
1356
Something Easier
Spring School Contest 2005
1735
296
1357
Teakettle 1.0 for Dummies
Spring School Contest 2005
425
1188
1358
Cables
Spring School Contest 2005
945
541
1359
Construction
Spring School Contest 2005
437
1156
1360
Philosophical Dispute
Ural Championship 2005. Round 2
395
1277
1361
Spaceology vs. Chronistics
Ural Championship 2005. Round 2
254
1959
1362
Classmates 2
Ural Championship 2005. Round 2
1155
444
1363
Halftones
Ural Championship 2005. Round 2
87
5332
1364
LaraKiller
Ural Championship 2005. Round 2
534
951
1365
Testing Calculator
Ural Championship 2005. Round 2
96
4879
1366
Presents
Ural Championship 2005. Round 2
973
526
1367
Top Secret
Ural Championship 2005. Round 2
162
3007
1368
Goat in the Garden 3
Ural Championship 2005. Round 2
199
2474
1369
Cockroach Race
Ural Championship 2005. Round 2
30
12929
1370
Magician
Ural Championship 2005. Round 2
5802
89
1371
Cargo Agency
Ural Championship 2005. Round 1
980
524
1372
Death Star
Ural Championship 2005. Round 1
77
5960
1373
Pictura ex Machina
Ural Championship 2005. Round 1
603
846
1374
Misere
Ural Championship 2005. Round 1
39
10582
1375
Bill Clevers
Ural Championship 2005. Round 1
949
541
1376
Dean's Pyramid 2
Ural Championship 2005. Round 1
44
9602
1377
Lara Croft
Ural Championship 2005. Round 1
1740
296
1378
Artificial Intelligence
Ural Championship 2005. Round 1
339
1486
1379
Cups Transportation
Ural Championship 2005. Round 1
819
625
1380
Ostap's Chess
Petrozavodsk Summer 2005. Moscow+Ural Contest
113
4216
1381
Cockroaches in the Building
Petrozavodsk Summer 2005. Moscow+Ural Contest
137
3528
1382
Game with Cards
Petrozavodsk Summer 2005. Moscow+Ural Contest
287
1746
1383
Flower-garden Designs
Petrozavodsk Summer 2005. Moscow+Ural Contest
42
9972
1384
Goat in the Garden 4
Petrozavodsk Summer 2005. Moscow+Ural Contest
94
4986
1385
Interesting Number
Petrozavodsk Summer 2005. Moscow+Ural Contest
2103
245
1386
Maze
Petrozavodsk Summer 2005. Moscow+Ural Contest
439
1155
1387
Vasya's Dad
Petrozavodsk Summer 2005. Moscow+Ural Contest
363
1390
1388
Photo
Petrozavodsk Summer 2005. Moscow+Ural Contest
22
16205
1389
Roadworks
Petrozavodsk Summer 2005. Moscow+Ural Contest
920
558
1390
Shots at Walls
Petrozavodsk Summer 2005. Moscow+Ural Contest
44
9603
1391
Snake
Petrozavodsk Summer 2005. Moscow+Ural Contest
85
5459
1392
Dreaming of Stars
668
765
1393
Average Common Prefix
435
1156
1394
Ships. Version 2
23
15715
1395
Pascal vs. C++. Version 2
203
2340
1396
Maximum. Version 2
240
1989
1397
Points Game
272
1716
1398
Bishop and Pawn
534
872
1399
Economical Director
34
10773
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