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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
33077
15
1493
One Step from Happiness
Autumn School Contest 2006
10084
47
1496
Spammer
Autumn School Contest 2006
9723
49
1457
Heating Main
Timus Top Coders: Second Challenge
7289
67
1404
Easy to Hack!
Autumn School Contest 2005
6351
80
1446
Sorting Hat
Ural Championship 2006
5443
91
1494
Monobilliards
Autumn School Contest 2006
4906
96
1402
Cocktails
Autumn School Contest 2005
3975
128
1450
Russian Pipelines
Timus Top Coders: Second Challenge
3109
158
1471
Distance in the Tree
Petrozavodsk Summer 2006. Ural+Orel Contest
2860
166
1423
String Tale
Timus Top Coders: First Challenge
2888
172
1413
Mars Jumper
USU Championship 2005
2872
177
1401
Gamers
Autumn School Contest 2005
2860
178
1490
Fire Circle
Autumn School Contest 2006
2397
197
1491
Unreal Story
Autumn School Contest 2006
2260
209
1470
UFOs
Petrozavodsk Summer 2006. Ural+Orel Contest
1887
251
1433
Diamonds
USU Personal Contest 2006
1897
261
1444
Elephpotamus
Ural Championship 2006
1729
284
1497
Cutting a Square
Autumn School Contest 2006
1580
298
1495
One-two, One-two 2
Autumn School Contest 2006
1393
338
1406
Next Number
Autumn School Contest 2005
1478
344
1403
Courier
Autumn School Contest 2005
1452
350
1431
Diplomas
USU Personal Contest 2006
1379
358
1427
SMS
Timus Top Coders: First Challenge
1371
361
1483
Table Football
USU Championship 2006
1237
381
1407
One-two, One-two
Autumn School Contest 2005
1325
383
1410
Crack
USU Championship 2005
1311
386
1489
Points on a Parallelepiped
Autumn School Contest 2006
1208
389
1416
Confidential
USU Championship 2005
1279
396
1414
Astronomical Database
USU Championship 2005
1169
433
1439
Battle with You-Know-Who
Ural Championship 2006
1116
439
1430
Crime and Punishment
Timus Top Coders: First Challenge
1070
462
1480
Coupons
USU Championship 2006
1014
464
1437
Gasoline Station
USU Personal Contest 2006
998
494
1465
Pawn Game
Petrozavodsk Winter 2006. USU Contest
963
494
1428
Jedi Riddle
Timus Top Coders: First Challenge
995
497
1421
Credit Operations
Timus Top Coders: First Challenge
912
541
1400
Cellular Characters
Autumn School Contest 2005
928
545
1448
Lighting in Hogwarts
Ural Championship 2006
843
580
1445
Christmas gifts
Ural Championship 2006
823
594
1463
Happiness to People!
Petrozavodsk Winter 2006. USU Contest
792
599
1452
Pascal vs. C++
Timus Top Coders: Second Challenge
796
610
1484
Film Rating
USU Championship 2006
727
645
1486
Equal Squares
USU Championship 2006
719
652
1443
Rails
Ural Championship 2006
722
676
1440
Training Schedule
Ural Championship 2006
713
684
1405
Goat in the Garden 5
Autumn School Contest 2005
708
713
1424
Minibus
Timus Top Coders: First Challenge
689
714
1474
About Frogs
Petrozavodsk Summer 2006. Ural+Orel Contest
657
714
1456
Jedi Riddle 2
Timus Top Coders: Second Challenge
651
744
1436
Billboard
USU Personal Contest 2006
586
835
1462
Uncle Scrooge's Gold
Petrozavodsk Winter 2006. USU Contest
565
836
1468
Fraction
Petrozavodsk Summer 2006. Ural+Orel Contest
558
839
1422
Fireflies
Timus Top Coders: First Challenge
564
870
1498
Stroke at Full Speed
Autumn School Contest 2006
524
888
1418
Military Story
USU Championship 2005
551
909
1434
Buses in Vasyuki
USU Personal Contest 2006
501
974
1469
No Smoking!
Petrozavodsk Summer 2006. Ural+Orel Contest
475
982
1435
Financial Error
USU Personal Contest 2006
491
993
1451
Beerhouse Tale
Timus Top Coders: Second Challenge
485
994
1447
Portkey Network
Ural Championship 2006
487
995
1461
Christmas Garland
Petrozavodsk Winter 2006. USU Contest
471
999
1472
Martian Army
Petrozavodsk Summer 2006. Ural+Orel Contest
433
1075
1441
From the History of Gringotts Bank
Ural Championship 2006
422
1145
1408
Polynomial Multiplication
Autumn School Contest 2005
413
1210
1453
Queen
Timus Top Coders: Second Challenge
395
1215
1419
Maps of the Island Worlds
USU Championship 2005
407
1223
1458
War Games
Timus Top Coders: Second Challenge
391
1227
1467
Sum of Degrees
Petrozavodsk Winter 2006. USU Contest
381
1229
1487
Chinese Football
USU Championship 2006
364
1270
1476
Lunar Code
Petrozavodsk Summer 2006. Ural+Orel Contest
357
1298
1449
Credit Operations 2
Timus Top Coders: Second Challenge
323
1477
1499
Kerchiefs
Autumn School Contest 2006
310
1482
1412
Autumn Tide
USU Championship 2005
326
1518
1488
ACM Poker
USU Championship 2006
290
1584
1459
Archer's Travel
Petrozavodsk Winter 2006. USU Contest
277
1675
1485
Football and Lie
USU Championship 2006
266
1721
1425
Queen 2
Timus Top Coders: First Challenge
279
1727
1420
Integer-Valued Complex Division
USU Championship 2005
263
1869
1417
Space Poker 2
USU Championship 2005
253
1940
1492
Vasya's Dad 2
Autumn School Contest 2006
227
2002
1455
Freedom of Speech
Timus Top Coders: Second Challenge
223
2111
1481
Winning Chances
USU Championship 2006
192
2352
1454
Rectangles 2
Timus Top Coders: Second Challenge
183
2549
1429
Biscuits
Timus Top Coders: First Challenge
177
2669
1464
Light
Petrozavodsk Winter 2006. USU Contest
156
2895
1477
Airplanes
Petrozavodsk Summer 2006. Ural+Orel Contest
148
3015
1438
Time Limit Exceeded
USU Personal Contest 2006
155
3016
1482
Triangle Game
USU Championship 2006
145
3065
1411
40 Islands Knights
USU Championship 2005
154
3111
1466
Magic Square
Petrozavodsk Winter 2006. USU Contest
141
3183
1442
Floo Powder
Ural Championship 2006
144
3212
1475
Ryaba Hen
Petrozavodsk Summer 2006. Ural+Orel Contest
114
3842
1478
Spy Satellites
Petrozavodsk Summer 2006. Ural+Orel Contest
109
4003
1460
Wires
Petrozavodsk Winter 2006. USU Contest
104
4216
1479
Scheduled Checking
Petrozavodsk Summer 2006. Ural+Orel Contest
95
4537
1426
Rectangles
Timus Top Coders: First Challenge
86
5199
1473
Farm 2
Petrozavodsk Summer 2006. Ural+Orel Contest
79
5352
1432
Twofold Luck
USU Personal Contest 2006
52
8027
1415
Mobile Life
USU Championship 2005
44
9445
Solved problems:
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Sort by:
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