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Problem set. Volume 4
Solved problems:
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Volume 3
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ID
Title
Source
Authors
Difficulty
1300
Taxes
Ural Championship 1998
168
2887
1301
Cube in Labyrinth
Ural Championship 1998
681
744
1302
Delta-wave
Ural Championship 1998
1464
349
1303
Minimal Coverage
Ural Championship 1998
2836
181
1304
Parallelepiped
Ural Championship 1998
257
1924
1305
Convex Hull
Ural Championship 1998
716
708
1306
Sequence Median
Ural Championship 1998
3531
145
1307
Archiver
Ural Championship 2004. Round 1
390
1285
1308
Dean's Pyramid
Ural Championship 2004. Round 1
170
2856
1309
Dispute
Ural Championship 2004. Round 1
842
603
1310
ACM Diagnostics
Ural Championship 2004. Round 1
463
1087
1311
Stable Construction
Ural Championship 2004. Round 1
342
1460
1312
Tray
Ural Championship 2004. Round 1
161
3006
1313
Some Words about Sport
Ural Championship 2004. Round 1
15138
34
1314
Chase in Subway
Ural Championship 2004. Round 1
864
588
1315
MDPAR and MIIAR
Ural Championship 2004. Round 1
266
1863
1316
Electronic Auction
Ural Championship 2004. Round 1
1170
436
1317
Hail
Ural Championship 2004. Round 2
471
1069
1318
Logarithm
Ural Championship 2004. Round 2
359
1393
1319
Hotel
Ural Championship 2004. Round 2
13241
39
1320
Graph Decomposition
Ural Championship 2004. Round 2
1780
287
1321
Floor Indicator
Ural Championship 2004. Round 2
369
1356
1322
Spy
Ural Championship 2004. Round 2
2792
183
1323
Classmates
Ural Championship 2004. Round 2
612
827
1324
Extra Spaces
Ural Championship 2004. Round 2
540
935
1325
Dirt
Ural Championship 2004. Round 2
947
537
1326
Bottle Taps
Ural Championship 2004. Round 2
1301
392
1327
Fuses
Autumn School Contest 2004
11057
47
1328
Fireball
Autumn School Contest 2004
357
1408
1329
Galactic History
Autumn School Contest 2004
1112
461
1330
Intervals
Autumn School Contest 2004
5386
96
1331
Vladislava
Autumn School Contest 2004
507
1000
1332
Genie Bomber
Autumn School Contest 2004
822
621
1333
Genie Bomber 2
Autumn School Contest 2004
2376
217
1334
Checkers
Autumn School Contest 2004
947
540
1335
White Thesis
Autumn School Contest 2004
2842
181
1336
Problem of Ben Betsalel
Autumn School Contest 2004
4236
122
1337
Bureaucracy
Autumn School Contest 2004
321
1561
1338
Automobiles
USU Championship 2004
279
1794
1339
Babies
USU Championship 2004
594
858
1340
Cucaracha
USU Championship 2004
94
4985
1341
Device
USU Championship 2004
445
1139
1342
Enterprise
USU Championship 2004
698
732
1343
Fairy Tale
USU Championship 2004
1236
416
1344
Gigantic Turnip
USU Championship 2004
106
4469
1345
HTML
USU Championship 2004
349
1444
1346
Intervals of Monotonicity
USU Championship 2004
1735
297
1347
Blog
Spring School Contest 2005
368
1372
1348
Goat in the Garden 2
Spring School Contest 2005
2837
182
1349
Farm
Spring School Contest 2005
10249
51
1350
Canteen
Spring School Contest 2005
1306
394
1351
Good Gnusmas – Dead Gnusmas
Spring School Contest 2005
984
522
1352
Mersenne Primes
Spring School Contest 2005
3958
131
1353
Milliard Vasya's Function
Spring School Contest 2005
5029
103
1354
Palindrome. Again Palindrome
Spring School Contest 2005
3751
138
1355
Bald Spot Revisited
Spring School Contest 2005
2453
211
1356
Something Easier
Spring School Contest 2005
1743
296
1357
Teakettle 1.0 for Dummies
Spring School Contest 2005
427
1187
1358
Cables
Spring School Contest 2005
948
542
1359
Construction
Spring School Contest 2005
437
1161
1360
Philosophical Dispute
Ural Championship 2005. Round 2
397
1276
1361
Spaceology vs. Chronistics
Ural Championship 2005. Round 2
254
1967
1362
Classmates 2
Ural Championship 2005. Round 2
1158
445
1363
Halftones
Ural Championship 2005. Round 2
91
5141
1364
LaraKiller
Ural Championship 2005. Round 2
534
954
1365
Testing Calculator
Ural Championship 2005. Round 2
99
4763
1366
Presents
Ural Championship 2005. Round 2
979
525
1367
Top Secret
Ural Championship 2005. Round 2
162
3019
1368
Goat in the Garden 3
Ural Championship 2005. Round 2
199
2484
1369
Cockroach Race
Ural Championship 2005. Round 2
31
12664
1370
Magician
Ural Championship 2005. Round 2
5820
89
1371
Cargo Agency
Ural Championship 2005. Round 1
984
524
1372
Death Star
Ural Championship 2005. Round 1
77
5983
1373
Pictura ex Machina
Ural Championship 2005. Round 1
607
844
1374
Misere
Ural Championship 2005. Round 1
39
10623
1375
Bill Clevers
Ural Championship 2005. Round 1
950
542
1376
Dean's Pyramid 2
Ural Championship 2005. Round 1
44
9640
1377
Lara Croft
Ural Championship 2005. Round 1
1748
296
1378
Artificial Intelligence
Ural Championship 2005. Round 1
341
1483
1379
Cups Transportation
Ural Championship 2005. Round 1
842
611
1380
Ostap's Chess
Petrozavodsk Summer 2005. Moscow+Ural Contest
113
4233
1381
Cockroaches in the Building
Petrozavodsk Summer 2005. Moscow+Ural Contest
137
3542
1382
Game with Cards
Petrozavodsk Summer 2005. Moscow+Ural Contest
288
1747
1383
Flower-garden Designs
Petrozavodsk Summer 2005. Moscow+Ural Contest
43
9823
1384
Goat in the Garden 4
Petrozavodsk Summer 2005. Moscow+Ural Contest
94
5006
1385
Interesting Number
Petrozavodsk Summer 2005. Moscow+Ural Contest
2111
245
1386
Maze
Petrozavodsk Summer 2005. Moscow+Ural Contest
440
1157
1387
Vasya's Dad
Petrozavodsk Summer 2005. Moscow+Ural Contest
366
1385
1388
Photo
Petrozavodsk Summer 2005. Moscow+Ural Contest
22
16269
1389
Roadworks
Petrozavodsk Summer 2005. Moscow+Ural Contest
925
557
1390
Shots at Walls
Petrozavodsk Summer 2005. Moscow+Ural Contest
45
9466
1391
Snake
Petrozavodsk Summer 2005. Moscow+Ural Contest
85
5480
1392
Dreaming of Stars
670
766
1393
Average Common Prefix
436
1158
1394
Ships. Version 2
23
15777
1395
Pascal vs. C++. Version 2
204
2339
1396
Maximum. Version 2
242
1982
1397
Points Game
272
1724
1398
Bishop and Pawn
538
870
1399
Economical Director
35
10584
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