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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
1961
256
1201
Which Day Is It?
USU Local Contest. March 2002
1382
363
1202
Rectangles Travel
USU Local Contest. March 2002
1134
441
1203
Scientific Conference
USU Local Contest. March 2002
6280
80
1204
Idempotents
USU Local Contest. March 2002
2194
229
1205
By the Underground or by Foot?
USU Local Contest. March 2002
2119
237
1206
Sum of Digits of the Sum of Numbers
USU Local Contest. March 2002
4069
124
1207
Median on the Plane
USU Local Contest. March 2002
4176
121
1208
Legendary Teams Contest
USU Local Contest. March 2002
2356
213
1209
1, 10, 100, 1000...
Autumn School Contest 2002
14807
34
1210
Kind Spirits
Autumn School Contest 2002
3105
163
1211
Collective Guarantee
Autumn School Contest 2002
1626
311
1212
Battleship
Autumn School Contest 2002
1024
492
1213
Cockroaches!
Autumn School Contest 2002
2972
171
1214
Strange Procedure
Autumn School Contest 2002
4973
102
1215
Exactness of Projectile Hit
Autumn School Contest 2002
1679
301
1216
Two Pawns and One King
USU Championship 2002
234
2085
1217
Unlucky Tickets
USU Championship 2002
1233
409
1218
Episode N-th: The Jedi Tournament
USU Championship 2002
1563
323
1219
Symbolic Sequence
USU Championship 2002
4228
120
1220
Stacks
USU Championship 2002
1820
278
1221
Malevich Strikes Back!
USU Championship 2002
1200
421
1222
Chernobyl’ Eagles
USU Championship 2002
3550
143
1223
Chernobyl’ Eagle on a Roof
USU Championship 2002
1725
293
1224
Spiral
NEERC 2002 Central Subregional
7659
66
1225
Flags
NEERC 2002 Central Subregional
14420
35
1226
esreveR redrO
NEERC 2002 Central Subregional
4469
114
1227
Rally Championship
NEERC 2002 Central Subregional
1677
302
1228
Array
NEERC 2002 Central Subregional
4703
108
1229
Strong Brickwork
NEERC 2002 Central Subregional
1322
382
1230
Introspective Program
NEERC 2002 Central Subregional
659
761
1231
Turing: One, Two, Three, …
NEERC 2002 Central Subregional
225
2166
1232
Asteroid Landing
NEERC 2002 Central Subregional
204
2378
1233
Amusing Numbers
NEERC 2002
540
926
1234
Bricks
NEERC 2002
730
689
1235
Cricket Field
NEERC 2002
653
769
1236
Decoding Task
NEERC 2002
1019
495
1237
Evacuation Plan
NEERC 2002
508
985
1238
Folding
NEERC 2002
1214
417
1239
Ghost Busters
NEERC 2002
154
3107
1240
Heroes of Might and Magic
NEERC 2002
346
1431
1241
Inlay Cutters
NEERC 2002
289
1706
1242
Werewolf
USU Personal Contest 2003
2885
176
1243
Divorce of the Seven Dwarfs
USU Personal Contest 2003
10371
49
1244
Gentlemen
USU Personal Contest 2003
1996
255
1245
Pictures
USU Personal Contest 2003
522
960
1246
Tethered Dog
USU Personal Contest 2003
1515
335
1247
Check a Sequence
USU Personal Contest 2003
2114
241
1248
Sequence Sum
USU Personal Contest 2003
758
665
1249
Ancient Necropolis
USU Local Contest. March 2003
2323
219
1250
Sea Burial
USU Local Contest. March 2003
690
730
1251
Cemetery Manager
USU Local Contest. March 2003
330
1503
1252
Sorting the Tombstones
USU Local Contest. March 2003
1270
399
1253
Necrologues
USU Local Contest. March 2003
727
694
1254
Die Hard
USU Local Contest. March 2003
783
645
1255
Graveyard of the Cosa Nostra
USU Local Contest. March 2003
1812
281
1256
Cemetery Guard
USU Local Contest. March 2003
215
2272
1257
Hyphenation
Autumn School Contest 2003
282
1762
1258
Pool
Autumn School Contest 2003
1225
417
1259
How to Become Star?
Autumn School Contest 2003
1293
395
1260
Nudnik Photographer
Autumn School Contest 2003
4629
111
1261
Tips
Autumn School Contest 2003
1551
330
1262
Pseudo-Roman Number
Autumn School Contest 2003
1309
390
1263
Elections
Autumn School Contest 2003
12090
43
1264
Workdays
Autumn School Contest 2003
24420
21
1265
Mirror
USU Championship 2003
322
1551
1266
Kirchhoff's Law
USU Championship 2003
342
1463
1267
Yekaterinburg Subway
USU Championship 2003
286
1739
1268
Little Chu
USU Championship 2003
691
734
1269
Obscene Words Filter
USU Championship 2003
599
845
1270
Unicube
USU Championship 2003
205
2395
1271
Sailing Directions
USU Championship 2003
101
4638
1272
Non-Yekaterinburg Subway
USU Championship 2003
3488
147
1273
Tie
USU Championship 2003
1098
465
1274
Fractional Arithmetic
NEERC 2003 Central Subregional
736
690
1275
Knights of the Round Table
NEERC 2003 Central Subregional
205
2396
1276
Train
NEERC 2003 Central Subregional
690
736
1277
Cops and Thieves
NEERC 2003 Central Subregional
642
790
1278
“… Connecting People”
NEERC 2003 Central Subregional
509
992
1279
Warehouse
NEERC 2003 Central Subregional
1206
424
1280
Topological Sorting
NEERC 2003 Central Subregional
3629
142
1281
River Basin
NEERC 2003 Central Subregional
363
1381
1282
Game Tree
NEERC 2003 Central Subregional
1518
337
1283
Dwarf
USU Personal Contest 2004
4417
117
1284
Space Poker
USU Personal Contest 2004
210
2349
1285
Thread in a Hyperspace
USU Personal Contest 2004
306
1636
1286
Starship Travel
USU Personal Contest 2004
772
661
1287
Mars Canals
USU Personal Contest 2004
1349
380
1288
Astrolocation
USU Personal Contest 2004
212
2328
1289
One Way Ticket
USU Personal Contest 2004
1287
398
1290
Sabotage
Spring School Contest 2004
6442
80
1291
Gear-wheels
Spring School Contest 2004
1334
385
1292
Mars Space Stations
Spring School Contest 2004
1350
380
1293
Eniya
Spring School Contest 2004
35640
15
1294
Mars Satellites
Spring School Contest 2004
1627
316
1295
Crazy Notions
Spring School Contest 2004
3414
151
1296
Hyperjump
Spring School Contest 2004
8174
63
1297
Palindrome
Spring School Contest 2004
6285
82
1298
Knight
Spring School Contest 2004
2210
233
1299
Psylonians
Spring School Contest 2004
323
1553
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