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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
1983
257
1201
Which Day Is It?
USU Local Contest. March 2002
1391
365
1202
Rectangles Travel
USU Local Contest. March 2002
1145
443
1203
Scientific Conference
USU Local Contest. March 2002
6570
78
1204
Idempotents
USU Local Contest. March 2002
2213
230
1205
By the Underground or by Foot?
USU Local Contest. March 2002
2177
234
1206
Sum of Digits of the Sum of Numbers
USU Local Contest. March 2002
4107
124
1207
Median on the Plane
USU Local Contest. March 2002
4366
117
1208
Legendary Teams Contest
USU Local Contest. March 2002
2427
210
1209
1, 10, 100, 1000...
Autumn School Contest 2002
15067
34
1210
Kind Spirits
Autumn School Contest 2002
3045
169
1211
Collective Guarantee
Autumn School Contest 2002
1649
311
1212
Battleship
Autumn School Contest 2002
1035
493
1213
Cockroaches!
Autumn School Contest 2002
3005
171
1214
Strange Procedure
Autumn School Contest 2002
5017
103
1215
Exactness of Projectile Hit
Autumn School Contest 2002
1701
301
1216
Two Pawns and One King
USU Championship 2002
245
2023
1217
Unlucky Tickets
USU Championship 2002
1254
408
1218
Episode N-th: The Jedi Tournament
USU Championship 2002
1586
323
1219
Symbolic Sequence
USU Championship 2002
4256
121
1220
Stacks
USU Championship 2002
1829
281
1221
Malevich Strikes Back!
USU Championship 2002
1210
423
1222
Chernobyl’ Eagles
USU Championship 2002
3570
144
1223
Chernobyl’ Eagle on a Roof
USU Championship 2002
1763
291
1224
Spiral
NEERC 2002 Central Subregional
7775
66
1225
Flags
NEERC 2002 Central Subregional
14721
35
1226
esreveR redrO
NEERC 2002 Central Subregional
4518
114
1227
Rally Championship
NEERC 2002 Central Subregional
1704
301
1228
Array
NEERC 2002 Central Subregional
4740
109
1229
Strong Brickwork
NEERC 2002 Central Subregional
1330
385
1230
Introspective Program
NEERC 2002 Central Subregional
640
794
1231
Turing: One, Two, Three, …
NEERC 2002 Central Subregional
229
2159
1232
Asteroid Landing
NEERC 2002 Central Subregional
212
2324
1233
Amusing Numbers
NEERC 2002
561
905
1234
Bricks
NEERC 2002
742
687
1235
Cricket Field
NEERC 2002
662
769
1236
Decoding Task
NEERC 2002
1027
498
1237
Evacuation Plan
NEERC 2002
514
987
1238
Folding
NEERC 2002
1235
415
1239
Ghost Busters
NEERC 2002
160
3039
1240
Heroes of Might and Magic
NEERC 2002
358
1404
1241
Inlay Cutters
NEERC 2002
297
1684
1242
Werewolf
USU Personal Contest 2003
2953
175
1243
Divorce of the Seven Dwarfs
USU Personal Contest 2003
10558
49
1244
Gentlemen
USU Personal Contest 2003
2025
255
1245
Pictures
USU Personal Contest 2003
540
942
1246
Tethered Dog
USU Personal Contest 2003
1543
334
1247
Check a Sequence
USU Personal Contest 2003
2136
241
1248
Sequence Sum
USU Personal Contest 2003
779
656
1249
Ancient Necropolis
USU Local Contest. March 2003
2336
221
1250
Sea Burial
USU Local Contest. March 2003
707
723
1251
Cemetery Manager
USU Local Contest. March 2003
338
1489
1252
Sorting the Tombstones
USU Local Contest. March 2003
1296
397
1253
Necrologues
USU Local Contest. March 2003
742
689
1254
Die Hard
USU Local Contest. March 2003
793
645
1255
Graveyard of the Cosa Nostra
USU Local Contest. March 2003
1827
282
1256
Cemetery Guard
USU Local Contest. March 2003
221
2243
1257
Hyphenation
Autumn School Contest 2003
292
1727
1258
Pool
Autumn School Contest 2003
1240
417
1259
How to Become Star?
Autumn School Contest 2003
1303
397
1260
Nudnik Photographer
Autumn School Contest 2003
4668
111
1261
Tips
Autumn School Contest 2003
1575
329
1262
Pseudo-Roman Number
Autumn School Contest 2003
1326
390
1263
Elections
Autumn School Contest 2003
12224
43
1264
Workdays
Autumn School Contest 2003
24826
21
1265
Mirror
USU Championship 2003
334
1517
1266
Kirchhoff's Law
USU Championship 2003
362
1403
1267
Yekaterinburg Subway
USU Championship 2003
295
1711
1268
Little Chu
USU Championship 2003
711
724
1269
Obscene Words Filter
USU Championship 2003
610
842
1270
Unicube
USU Championship 2003
222
2249
1271
Sailing Directions
USU Championship 2003
109
4385
1272
Non-Yekaterinburg Subway
USU Championship 2003
3607
144
1273
Tie
USU Championship 2003
1117
463
1274
Fractional Arithmetic
NEERC 2003 Central Subregional
761
677
1275
Knights of the Round Table
NEERC 2003 Central Subregional
221
2260
1276
Train
NEERC 2003 Central Subregional
702
733
1277
Cops and Thieves
NEERC 2003 Central Subregional
597
860
1278
“… Connecting People”
NEERC 2003 Central Subregional
522
981
1279
Warehouse
NEERC 2003 Central Subregional
1223
423
1280
Topological Sorting
NEERC 2003 Central Subregional
3707
140
1281
River Basin
NEERC 2003 Central Subregional
282
1788
1282
Game Tree
NEERC 2003 Central Subregional
1535
338
1283
Dwarf
USU Personal Contest 2004
4521
116
1284
Space Poker
USU Personal Contest 2004
223
2248
1285
Thread in a Hyperspace
USU Personal Contest 2004
319
1592
1286
Starship Travel
USU Personal Contest 2004
791
654
1287
Mars Canals
USU Personal Contest 2004
1359
383
1288
Astrolocation
USU Personal Contest 2004
228
2201
1289
One Way Ticket
USU Personal Contest 2004
1305
398
1290
Sabotage
Spring School Contest 2004
6503
80
1291
Gear-wheels
Spring School Contest 2004
1360
382
1292
Mars Space Stations
Spring School Contest 2004
1369
380
1293
Eniya
Spring School Contest 2004
36130
14
1294
Mars Satellites
Spring School Contest 2004
1641
317
1295
Crazy Notions
Spring School Contest 2004
3449
151
1296
Hyperjump
Spring School Contest 2004
8649
61
1297
Palindrome
Spring School Contest 2004
6359
82
1298
Knight
Spring School Contest 2004
2231
234
1299
Psylonians
Spring School Contest 2004
333
1528
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