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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
2890
1301
Cube in Labyrinth
Ural Championship 1998
681
744
1302
Delta-wave
Ural Championship 1998
1465
349
1303
Minimal Coverage
Ural Championship 1998
2839
181
1304
Parallelepiped
Ural Championship 1998
257
1927
1305
Convex Hull
Ural Championship 1998
717
708
1306
Sequence Median
Ural Championship 1998
3532
145
1307
Archiver
Ural Championship 2004. Round 1
391
1283
1308
Dean's Pyramid
Ural Championship 2004. Round 1
170
2859
1309
Dispute
Ural Championship 2004. Round 1
842
604
1310
ACM Diagnostics
Ural Championship 2004. Round 1
463
1088
1311
Stable Construction
Ural Championship 2004. Round 1
342
1462
1312
Tray
Ural Championship 2004. Round 1
161
3010
1313
Some Words about Sport
Ural Championship 2004. Round 1
15148
34
1314
Chase in Subway
Ural Championship 2004. Round 1
866
588
1315
MDPAR and MIIAR
Ural Championship 2004. Round 1
268
1851
1316
Electronic Auction
Ural Championship 2004. Round 1
1170
436
1317
Hail
Ural Championship 2004. Round 2
471
1070
1318
Logarithm
Ural Championship 2004. Round 2
359
1395
1319
Hotel
Ural Championship 2004. Round 2
13249
39
1320
Graph Decomposition
Ural Championship 2004. Round 2
1787
286
1321
Floor Indicator
Ural Championship 2004. Round 2
369
1358
1322
Spy
Ural Championship 2004. Round 2
2798
183
1323
Classmates
Ural Championship 2004. Round 2
613
826
1324
Extra Spaces
Ural Championship 2004. Round 2
540
936
1325
Dirt
Ural Championship 2004. Round 2
949
537
1326
Bottle Taps
Ural Championship 2004. Round 2
1302
392
1327
Fuses
Autumn School Contest 2004
11063
47
1328
Fireball
Autumn School Contest 2004
357
1410
1329
Galactic History
Autumn School Contest 2004
1115
460
1330
Intervals
Autumn School Contest 2004
5387
96
1331
Vladislava
Autumn School Contest 2004
507
1001
1332
Genie Bomber
Autumn School Contest 2004
822
622
1333
Genie Bomber 2
Autumn School Contest 2004
2377
217
1334
Checkers
Autumn School Contest 2004
948
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
1563
1338
Automobiles
USU Championship 2004
279
1796
1339
Babies
USU Championship 2004
594
859
1340
Cucaracha
USU Championship 2004
94
4991
1341
Device
USU Championship 2004
445
1141
1342
Enterprise
USU Championship 2004
699
732
1343
Fairy Tale
USU Championship 2004
1237
416
1344
Gigantic Turnip
USU Championship 2004
106
4475
1345
HTML
USU Championship 2004
349
1446
1346
Intervals of Monotonicity
USU Championship 2004
1735
297
1347
Blog
Spring School Contest 2005
368
1374
1348
Goat in the Garden 2
Spring School Contest 2005
2901
178
1349
Farm
Spring School Contest 2005
10262
51
1350
Canteen
Spring School Contest 2005
1330
388
1351
Good Gnusmas – Dead Gnusmas
Spring School Contest 2005
984
523
1352
Mersenne Primes
Spring School Contest 2005
3958
131
1353
Milliard Vasya's Function
Spring School Contest 2005
5031
103
1354
Palindrome. Again Palindrome
Spring School Contest 2005
3756
138
1355
Bald Spot Revisited
Spring School Contest 2005
2453
211
1356
Something Easier
Spring School Contest 2005
1744
296
1357
Teakettle 1.0 for Dummies
Spring School Contest 2005
427
1189
1358
Cables
Spring School Contest 2005
949
542
1359
Construction
Spring School Contest 2005
437
1162
1360
Philosophical Dispute
Ural Championship 2005. Round 2
397
1277
1361
Spaceology vs. Chronistics
Ural Championship 2005. Round 2
254
1969
1362
Classmates 2
Ural Championship 2005. Round 2
1158
445
1363
Halftones
Ural Championship 2005. Round 2
91
5147
1364
LaraKiller
Ural Championship 2005. Round 2
534
956
1365
Testing Calculator
Ural Championship 2005. Round 2
99
4769
1366
Presents
Ural Championship 2005. Round 2
980
525
1367
Top Secret
Ural Championship 2005. Round 2
162
3022
1368
Goat in the Garden 3
Ural Championship 2005. Round 2
199
2487
1369
Cockroach Race
Ural Championship 2005. Round 2
32
12376
1370
Magician
Ural Championship 2005. Round 2
5822
89
1371
Cargo Agency
Ural Championship 2005. Round 1
985
524
1372
Death Star
Ural Championship 2005. Round 1
77
5990
1373
Pictura ex Machina
Ural Championship 2005. Round 1
607
845
1374
Misere
Ural Championship 2005. Round 1
39
10635
1375
Bill Clevers
Ural Championship 2005. Round 1
951
542
1376
Dean's Pyramid 2
Ural Championship 2005. Round 1
44
9650
1377
Lara Croft
Ural Championship 2005. Round 1
1749
296
1378
Artificial Intelligence
Ural Championship 2005. Round 1
341
1485
1379
Cups Transportation
Ural Championship 2005. Round 1
844
610
1380
Ostap's Chess
Petrozavodsk Summer 2005. Moscow+Ural Contest
113
4237
1381
Cockroaches in the Building
Petrozavodsk Summer 2005. Moscow+Ural Contest
137
3546
1382
Game with Cards
Petrozavodsk Summer 2005. Moscow+Ural Contest
288
1749
1383
Flower-garden Designs
Petrozavodsk Summer 2005. Moscow+Ural Contest
43
9834
1384
Goat in the Garden 4
Petrozavodsk Summer 2005. Moscow+Ural Contest
94
5011
1385
Interesting Number
Petrozavodsk Summer 2005. Moscow+Ural Contest
2112
246
1386
Maze
Petrozavodsk Summer 2005. Moscow+Ural Contest
440
1158
1387
Vasya's Dad
Petrozavodsk Summer 2005. Moscow+Ural Contest
366
1386
1388
Photo
Petrozavodsk Summer 2005. Moscow+Ural Contest
22
16287
1389
Roadworks
Petrozavodsk Summer 2005. Moscow+Ural Contest
925
557
1390
Shots at Walls
Petrozavodsk Summer 2005. Moscow+Ural Contest
45
9476
1391
Snake
Petrozavodsk Summer 2005. Moscow+Ural Contest
85
5486
1392
Dreaming of Stars
670
766
1393
Average Common Prefix
437
1157
1394
Ships. Version 2
23
15794
1395
Pascal vs. C++. Version 2
204
2342
1396
Maximum. Version 2
243
1976
1397
Points Game
272
1726
1398
Bishop and Pawn
539
869
1399
Economical Director
36
10367
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