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Problem set. Volume 3
Solved problems:
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ID
Title
Source
Authors
Difficulty
1200
Horns and Hoofs
USU Local Contest. March 2002
1986
257
1201
Which Day Is It?
USU Local Contest. March 2002
1396
365
1202
Rectangles Travel
USU Local Contest. March 2002
1147
444
1203
Scientific Conference
USU Local Contest. March 2002
6597
78
1204
Idempotents
USU Local Contest. March 2002
2222
230
1205
By the Underground or by Foot?
USU Local Contest. March 2002
2182
234
1206
Sum of Digits of the Sum of Numbers
USU Local Contest. March 2002
4119
124
1207
Median on the Plane
USU Local Contest. March 2002
4386
117
1208
Legendary Teams Contest
USU Local Contest. March 2002
2432
210
1209
1, 10, 100, 1000...
Autumn School Contest 2002
15122
34
1210
Kind Spirits
Autumn School Contest 2002
3051
169
1211
Collective Guarantee
Autumn School Contest 2002
1652
311
1212
Battleship
Autumn School Contest 2002
1039
493
1213
Cockroaches!
Autumn School Contest 2002
3031
170
1214
Strange Procedure
Autumn School Contest 2002
5032
103
1215
Exactness of Projectile Hit
Autumn School Contest 2002
1705
302
1216
Two Pawns and One King
USU Championship 2002
248
2006
1217
Unlucky Tickets
USU Championship 2002
1257
409
1218
Episode N-th: The Jedi Tournament
USU Championship 2002
1590
324
1219
Symbolic Sequence
USU Championship 2002
4276
121
1220
Stacks
USU Championship 2002
1835
281
1221
Malevich Strikes Back!
USU Championship 2002
1212
424
1222
Chernobyl’ Eagles
USU Championship 2002
3582
144
1223
Chernobyl’ Eagle on a Roof
USU Championship 2002
1765
292
1224
Spiral
NEERC 2002 Central Subregional
7799
66
1225
Flags
NEERC 2002 Central Subregional
14780
35
1226
esreveR redrO
NEERC 2002 Central Subregional
4532
114
1227
Rally Championship
NEERC 2002 Central Subregional
1707
302
1228
Array
NEERC 2002 Central Subregional
4755
109
1229
Strong Brickwork
NEERC 2002 Central Subregional
1333
386
1230
Introspective Program
NEERC 2002 Central Subregional
643
793
1231
Turing: One, Two, Three, …
NEERC 2002 Central Subregional
230
2157
1232
Asteroid Landing
NEERC 2002 Central Subregional
213
2322
1233
Amusing Numbers
NEERC 2002
561
908
1234
Bricks
NEERC 2002
742
689
1235
Cricket Field
NEERC 2002
663
770
1236
Decoding Task
NEERC 2002
1030
498
1237
Evacuation Plan
NEERC 2002
516
986
1238
Folding
NEERC 2002
1239
415
1239
Ghost Busters
NEERC 2002
161
3031
1240
Heroes of Might and Magic
NEERC 2002
359
1405
1241
Inlay Cutters
NEERC 2002
299
1679
1242
Werewolf
USU Personal Contest 2003
2965
175
1243
Divorce of the Seven Dwarfs
USU Personal Contest 2003
10583
49
1244
Gentlemen
USU Personal Contest 2003
2033
254
1245
Pictures
USU Personal Contest 2003
542
942
1246
Tethered Dog
USU Personal Contest 2003
1545
334
1247
Check a Sequence
USU Personal Contest 2003
2154
240
1248
Sequence Sum
USU Personal Contest 2003
779
659
1249
Ancient Necropolis
USU Local Contest. March 2003
2344
221
1250
Sea Burial
USU Local Contest. March 2003
708
724
1251
Cemetery Manager
USU Local Contest. March 2003
340
1486
1252
Sorting the Tombstones
USU Local Contest. March 2003
1300
397
1253
Necrologues
USU Local Contest. March 2003
743
690
1254
Die Hard
USU Local Contest. March 2003
794
647
1255
Graveyard of the Cosa Nostra
USU Local Contest. March 2003
1832
282
1256
Cemetery Guard
USU Local Contest. March 2003
223
2232
1257
Hyphenation
Autumn School Contest 2003
294
1721
1258
Pool
Autumn School Contest 2003
1244
417
1259
How to Become Star?
Autumn School Contest 2003
1306
398
1260
Nudnik Photographer
Autumn School Contest 2003
4682
112
1261
Tips
Autumn School Contest 2003
1580
329
1262
Pseudo-Roman Number
Autumn School Contest 2003
1330
391
1263
Elections
Autumn School Contest 2003
12314
42
1264
Workdays
Autumn School Contest 2003
24910
21
1265
Mirror
USU Championship 2003
335
1518
1266
Kirchhoff's Law
USU Championship 2003
364
1400
1267
Yekaterinburg Subway
USU Championship 2003
297
1705
1268
Little Chu
USU Championship 2003
715
722
1269
Obscene Words Filter
USU Championship 2003
615
838
1270
Unicube
USU Championship 2003
223
2247
1271
Sailing Directions
USU Championship 2003
113
4257
1272
Non-Yekaterinburg Subway
USU Championship 2003
3620
144
1273
Tie
USU Championship 2003
1120
463
1274
Fractional Arithmetic
NEERC 2003 Central Subregional
763
678
1275
Knights of the Round Table
NEERC 2003 Central Subregional
223
2248
1276
Train
NEERC 2003 Central Subregional
706
732
1277
Cops and Thieves
NEERC 2003 Central Subregional
599
860
1278
“… Connecting People”
NEERC 2003 Central Subregional
522
985
1279
Warehouse
NEERC 2003 Central Subregional
1225
424
1280
Topological Sorting
NEERC 2003 Central Subregional
3719
140
1281
River Basin
NEERC 2003 Central Subregional
285
1775
1282
Game Tree
NEERC 2003 Central Subregional
1539
338
1283
Dwarf
USU Personal Contest 2004
4538
116
1284
Space Poker
USU Personal Contest 2004
223
2255
1285
Thread in a Hyperspace
USU Personal Contest 2004
320
1592
1286
Starship Travel
USU Personal Contest 2004
792
655
1287
Mars Canals
USU Personal Contest 2004
1363
383
1288
Astrolocation
USU Personal Contest 2004
228
2208
1289
One Way Ticket
USU Personal Contest 2004
1306
399
1290
Sabotage
Spring School Contest 2004
6525
80
1291
Gear-wheels
Spring School Contest 2004
1362
383
1292
Mars Space Stations
Spring School Contest 2004
1373
380
1293
Eniya
Spring School Contest 2004
36394
14
1294
Mars Satellites
Spring School Contest 2004
1643
318
1295
Crazy Notions
Spring School Contest 2004
3467
151
1296
Hyperjump
Spring School Contest 2004
8683
60
1297
Palindrome
Spring School Contest 2004
6386
82
1298
Knight
Spring School Contest 2004
2237
234
1299
Psylonians
Spring School Contest 2004
335
1524
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