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Problem set. Volume 5
Solved problems:
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Volume 4
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ID
Title
Source
Authors
Difficulty
1409
Two Gangsters
Autumn School Contest 2005
33053
15
1493
One Step from Happiness
Autumn School Contest 2006
10081
47
1496
Spammer
Autumn School Contest 2006
9719
49
1457
Heating Main
Timus Top Coders: Second Challenge
7287
67
1404
Easy to Hack!
Autumn School Contest 2005
6350
80
1446
Sorting Hat
Ural Championship 2006
5439
91
1494
Monobilliards
Autumn School Contest 2006
4881
97
1402
Cocktails
Autumn School Contest 2005
3976
128
1450
Russian Pipelines
Timus Top Coders: Second Challenge
3008
163
1471
Distance in the Tree
Petrozavodsk Summer 2006. Ural+Orel Contest
2860
166
1423
String Tale
Timus Top Coders: First Challenge
2886
172
1413
Mars Jumper
USU Championship 2005
2867
177
1401
Gamers
Autumn School Contest 2005
2851
179
1490
Fire Circle
Autumn School Contest 2006
2398
197
1491
Unreal Story
Autumn School Contest 2006
2258
209
1470
UFOs
Petrozavodsk Summer 2006. Ural+Orel Contest
1888
251
1433
Diamonds
USU Personal Contest 2006
1898
261
1444
Elephpotamus
Ural Championship 2006
1719
286
1497
Cutting a Square
Autumn School Contest 2006
1580
298
1495
One-two, One-two 2
Autumn School Contest 2006
1394
338
1406
Next Number
Autumn School Contest 2005
1479
343
1403
Courier
Autumn School Contest 2005
1452
350
1431
Diplomas
USU Personal Contest 2006
1380
358
1427
SMS
Timus Top Coders: First Challenge
1358
365
1483
Table Football
USU Championship 2006
1238
380
1407
One-two, One-two
Autumn School Contest 2005
1324
383
1410
Crack
USU Championship 2005
1311
386
1489
Points on a Parallelepiped
Autumn School Contest 2006
1208
389
1416
Confidential
USU Championship 2005
1280
395
1414
Astronomical Database
USU Championship 2005
1170
432
1439
Battle with You-Know-Who
Ural Championship 2006
1117
439
1430
Crime and Punishment
Timus Top Coders: First Challenge
1071
461
1480
Coupons
USU Championship 2006
1015
463
1437
Gasoline Station
USU Personal Contest 2006
999
493
1465
Pawn Game
Petrozavodsk Winter 2006. USU Contest
963
494
1428
Jedi Riddle
Timus Top Coders: First Challenge
996
496
1421
Credit Operations
Timus Top Coders: First Challenge
913
540
1400
Cellular Characters
Autumn School Contest 2005
928
545
1448
Lighting in Hogwarts
Ural Championship 2006
844
579
1445
Christmas gifts
Ural Championship 2006
823
594
1463
Happiness to People!
Petrozavodsk Winter 2006. USU Contest
793
598
1452
Pascal vs. C++
Timus Top Coders: Second Challenge
797
609
1484
Film Rating
USU Championship 2006
727
644
1486
Equal Squares
USU Championship 2006
719
651
1443
Rails
Ural Championship 2006
723
675
1440
Training Schedule
Ural Championship 2006
713
684
1405
Goat in the Garden 5
Autumn School Contest 2005
707
713
1424
Minibus
Timus Top Coders: First Challenge
690
713
1474
About Frogs
Petrozavodsk Summer 2006. Ural+Orel Contest
656
715
1456
Jedi Riddle 2
Timus Top Coders: Second Challenge
651
744
1462
Uncle Scrooge's Gold
Petrozavodsk Winter 2006. USU Contest
566
834
1436
Billboard
USU Personal Contest 2006
586
835
1468
Fraction
Petrozavodsk Summer 2006. Ural+Orel Contest
559
837
1422
Fireflies
Timus Top Coders: First Challenge
565
868
1498
Stroke at Full Speed
Autumn School Contest 2006
525
886
1418
Military Story
USU Championship 2005
552
907
1434
Buses in Vasyuki
USU Personal Contest 2006
501
973
1469
No Smoking!
Petrozavodsk Summer 2006. Ural+Orel Contest
475
982
1435
Financial Error
USU Personal Contest 2006
492
991
1447
Portkey Network
Ural Championship 2006
488
993
1451
Beerhouse Tale
Timus Top Coders: Second Challenge
485
993
1461
Christmas Garland
Petrozavodsk Winter 2006. USU Contest
472
997
1472
Martian Army
Petrozavodsk Summer 2006. Ural+Orel Contest
434
1072
1441
From the History of Gringotts Bank
Ural Championship 2006
423
1142
1408
Polynomial Multiplication
Autumn School Contest 2005
414
1206
1453
Queen
Timus Top Coders: Second Challenge
396
1211
1419
Maps of the Island Worlds
USU Championship 2005
408
1220
1458
War Games
Timus Top Coders: Second Challenge
392
1223
1467
Sum of Degrees
Petrozavodsk Winter 2006. USU Contest
382
1225
1487
Chinese Football
USU Championship 2006
365
1266
1476
Lunar Code
Petrozavodsk Summer 2006. Ural+Orel Contest
358
1294
1449
Credit Operations 2
Timus Top Coders: Second Challenge
324
1472
1499
Kerchiefs
Autumn School Contest 2006
311
1477
1412
Autumn Tide
USU Championship 2005
327
1513
1488
ACM Poker
USU Championship 2006
291
1577
1459
Archer's Travel
Petrozavodsk Winter 2006. USU Contest
278
1668
1485
Football and Lie
USU Championship 2006
267
1714
1425
Queen 2
Timus Top Coders: First Challenge
280
1720
1420
Integer-Valued Complex Division
USU Championship 2005
264
1861
1417
Space Poker 2
USU Championship 2005
254
1931
1492
Vasya's Dad 2
Autumn School Contest 2006
228
1992
1455
Freedom of Speech
Timus Top Coders: Second Challenge
224
2101
1481
Winning Chances
USU Championship 2006
193
2339
1454
Rectangles 2
Timus Top Coders: Second Challenge
184
2534
1429
Biscuits
Timus Top Coders: First Challenge
178
2653
1464
Light
Petrozavodsk Winter 2006. USU Contest
156
2894
1477
Airplanes
Petrozavodsk Summer 2006. Ural+Orel Contest
149
2994
1438
Time Limit Exceeded
USU Personal Contest 2006
155
3015
1482
Triangle Game
USU Championship 2006
146
3043
1411
40 Islands Knights
USU Championship 2005
155
3090
1466
Magic Square
Petrozavodsk Winter 2006. USU Contest
142
3160
1442
Floo Powder
Ural Championship 2006
145
3190
1475
Ryaba Hen
Petrozavodsk Summer 2006. Ural+Orel Contest
115
3808
1478
Spy Satellites
Petrozavodsk Summer 2006. Ural+Orel Contest
110
3967
1460
Wires
Petrozavodsk Winter 2006. USU Contest
105
4177
1479
Scheduled Checking
Petrozavodsk Summer 2006. Ural+Orel Contest
96
4491
1426
Rectangles
Timus Top Coders: First Challenge
87
5143
1473
Farm 2
Petrozavodsk Summer 2006. Ural+Orel Contest
80
5289
1432
Twofold Luck
USU Personal Contest 2006
53
7895
1415
Mobile Life
USU Championship 2005
45
9268
Solved problems:
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Sort by:
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