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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
164
2849
1301
Cube in Labyrinth
Ural Championship 1998
658
742
1302
Delta-wave
Ural Championship 1998
1430
344
1303
Minimal Coverage
Ural Championship 1998
2730
181
1304
Parallelepiped
Ural Championship 1998
252
1892
1305
Convex Hull
Ural Championship 1998
698
700
1306
Sequence Median
Ural Championship 1998
3447
143
1307
Archiver
Ural Championship 2004. Round 1
381
1269
1308
Dean's Pyramid
Ural Championship 2004. Round 1
163
2867
1309
Dispute
Ural Championship 2004. Round 1
810
605
1310
ACM Diagnostics
Ural Championship 2004. Round 1
450
1078
1311
Stable Construction
Ural Championship 2004. Round 1
334
1442
1312
Tray
Ural Championship 2004. Round 1
157
2970
1313
Some Words about Sport
Ural Championship 2004. Round 1
14401
34
1314
Chase in Subway
Ural Championship 2004. Round 1
826
593
1315
MDPAR and MIIAR
Ural Championship 2004. Round 1
249
1915
1316
Electronic Auction
Ural Championship 2004. Round 1
1122
438
1317
Hail
Ural Championship 2004. Round 2
454
1069
1318
Logarithm
Ural Championship 2004. Round 2
342
1409
1319
Hotel
Ural Championship 2004. Round 2
12730
39
1320
Graph Decomposition
Ural Championship 2004. Round 2
1694
291
1321
Floor Indicator
Ural Championship 2004. Round 2
362
1333
1322
Spy
Ural Championship 2004. Round 2
2371
208
1323
Classmates
Ural Championship 2004. Round 2
596
819
1324
Extra Spaces
Ural Championship 2004. Round 2
527
924
1325
Dirt
Ural Championship 2004. Round 2
895
548
1326
Bottle Taps
Ural Championship 2004. Round 2
1237
398
1327
Fuses
Autumn School Contest 2004
10696
47
1328
Fireball
Autumn School Contest 2004
351
1382
1329
Galactic History
Autumn School Contest 2004
1067
463
1330
Intervals
Autumn School Contest 2004
5132
97
1331
Vladislava
Autumn School Contest 2004
493
992
1332
Genie Bomber
Autumn School Contest 2004
796
619
1333
Genie Bomber 2
Autumn School Contest 2004
2292
217
1334
Checkers
Autumn School Contest 2004
923
535
1335
White Thesis
Autumn School Contest 2004
2792
178
1336
Problem of Ben Betsalel
Autumn School Contest 2004
4119
121
1337
Bureaucracy
Autumn School Contest 2004
314
1540
1338
Automobiles
USU Championship 2004
272
1775
1339
Babies
USU Championship 2004
561
877
1340
Cucaracha
USU Championship 2004
90
5006
1341
Device
USU Championship 2004
432
1133
1342
Enterprise
USU Championship 2004
657
751
1343
Fairy Tale
USU Championship 2004
1178
421
1344
Gigantic Turnip
USU Championship 2004
100
4551
1345
HTML
USU Championship 2004
343
1418
1346
Intervals of Monotonicity
USU Championship 2004
1687
295
1347
Blog
Spring School Contest 2005
354
1376
1348
Goat in the Garden 2
Spring School Contest 2005
2636
189
1349
Farm
Spring School Contest 2005
9879
51
1350
Canteen
Spring School Contest 2005
1270
391
1351
Good Gnusmas – Dead Gnusmas
Spring School Contest 2005
941
527
1352
Mersenne Primes
Spring School Contest 2005
3855
130
1353
Milliard Vasya's Function
Spring School Contest 2005
4822
104
1354
Palindrome. Again Palindrome
Spring School Contest 2005
3593
139
1355
Bald Spot Revisited
Spring School Contest 2005
2369
211
1356
Something Easier
Spring School Contest 2005
1697
293
1357
Teakettle 1.0 for Dummies
Spring School Contest 2005
413
1184
1358
Cables
Spring School Contest 2005
909
545
1359
Construction
Spring School Contest 2005
423
1157
1360
Philosophical Dispute
Ural Championship 2005. Round 2
386
1266
1361
Spaceology vs. Chronistics
Ural Championship 2005. Round 2
235
2046
1362
Classmates 2
Ural Championship 2005. Round 2
1118
444
1363
Halftones
Ural Championship 2005. Round 2
82
5450
1364
LaraKiller
Ural Championship 2005. Round 2
517
951
1365
Testing Calculator
Ural Championship 2005. Round 2
93
4868
1366
Presents
Ural Championship 2005. Round 2
945
525
1367
Top Secret
Ural Championship 2005. Round 2
153
3076
1368
Goat in the Garden 3
Ural Championship 2005. Round 2
195
2446
1369
Cockroach Race
Ural Championship 2005. Round 2
27
13551
1370
Magician
Ural Championship 2005. Round 2
5471
91
1371
Cargo Agency
Ural Championship 2005. Round 1
932
534
1372
Death Star
Ural Championship 2005. Round 1
74
5985
1373
Pictura ex Machina
Ural Championship 2005. Round 1
585
845
1374
Misere
Ural Championship 2005. Round 1
34
11426
1375
Bill Clevers
Ural Championship 2005. Round 1
914
544
1376
Dean's Pyramid 2
Ural Championship 2005. Round 1
41
9858
1377
Lara Croft
Ural Championship 2005. Round 1
1710
292
1378
Artificial Intelligence
Ural Championship 2005. Round 1
330
1479
1379
Cups Transportation
Ural Championship 2005. Round 1
763
650
1380
Ostap's Chess
Petrozavodsk Summer 2005. Moscow+Ural Contest
111
4156
1381
Cockroaches in the Building
Petrozavodsk Summer 2005. Moscow+Ural Contest
131
3566
1382
Game with Cards
Petrozavodsk Summer 2005. Moscow+Ural Contest
277
1752
1383
Flower-garden Designs
Petrozavodsk Summer 2005. Moscow+Ural Contest
40
10056
1384
Goat in the Garden 4
Petrozavodsk Summer 2005. Moscow+Ural Contest
90
5028
1385
Interesting Number
Petrozavodsk Summer 2005. Moscow+Ural Contest
2067
242
1386
Maze
Petrozavodsk Summer 2005. Moscow+Ural Contest
423
1161
1387
Vasya's Dad
Petrozavodsk Summer 2005. Moscow+Ural Contest
354
1381
1388
Photo
Petrozavodsk Summer 2005. Moscow+Ural Contest
20
16761
1389
Roadworks
Petrozavodsk Summer 2005. Moscow+Ural Contest
881
564
1390
Shots at Walls
Petrozavodsk Summer 2005. Moscow+Ural Contest
41
9859
1391
Snake
Petrozavodsk Summer 2005. Moscow+Ural Contest
85
5293
1392
Dreaming of Stars
649
763
1393
Average Common Prefix
421
1156
1394
Ships. Version 2
14
20952
1395
Pascal vs. C++. Version 2
193
2375
1396
Maximum. Version 2
238
1939
1397
Points Game
268
1680
1398
Bishop and Pawn
517
867
1399
Economical Director
32
10877
Solved problems:
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