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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
1958
256
1201
Which Day Is It?
USU Local Contest. March 2002
1381
362
1202
Rectangles Travel
USU Local Contest. March 2002
1128
443
1203
Scientific Conference
USU Local Contest. March 2002
6278
80
1204
Idempotents
USU Local Contest. March 2002
2191
229
1205
By the Underground or by Foot?
USU Local Contest. March 2002
2115
237
1206
Sum of Digits of the Sum of Numbers
USU Local Contest. March 2002
4063
124
1207
Median on the Plane
USU Local Contest. March 2002
4166
121
1208
Legendary Teams Contest
USU Local Contest. March 2002
2353
213
1209
1, 10, 100, 1000...
Autumn School Contest 2002
14784
34
1210
Kind Spirits
Autumn School Contest 2002
3103
163
1211
Collective Guarantee
Autumn School Contest 2002
1620
312
1212
Battleship
Autumn School Contest 2002
1023
492
1213
Cockroaches!
Autumn School Contest 2002
2969
170
1214
Strange Procedure
Autumn School Contest 2002
4972
102
1215
Exactness of Projectile Hit
Autumn School Contest 2002
1676
301
1216
Two Pawns and One King
USU Championship 2002
233
2091
1217
Unlucky Tickets
USU Championship 2002
1228
410
1218
Episode N-th: The Jedi Tournament
USU Championship 2002
1558
324
1219
Symbolic Sequence
USU Championship 2002
4227
120
1220
Stacks
USU Championship 2002
1818
278
1221
Malevich Strikes Back!
USU Championship 2002
1198
421
1222
Chernobyl’ Eagles
USU Championship 2002
3547
143
1223
Chernobyl’ Eagle on a Roof
USU Championship 2002
1719
294
1224
Spiral
NEERC 2002 Central Subregional
7654
66
1225
Flags
NEERC 2002 Central Subregional
14404
35
1226
esreveR redrO
NEERC 2002 Central Subregional
4464
114
1227
Rally Championship
NEERC 2002 Central Subregional
1674
302
1228
Array
NEERC 2002 Central Subregional
4685
108
1229
Strong Brickwork
NEERC 2002 Central Subregional
1320
382
1230
Introspective Program
NEERC 2002 Central Subregional
659
760
1231
Turing: One, Two, Three, …
NEERC 2002 Central Subregional
225
2162
1232
Asteroid Landing
NEERC 2002 Central Subregional
204
2374
1233
Amusing Numbers
NEERC 2002
539
927
1234
Bricks
NEERC 2002
730
687
1235
Cricket Field
NEERC 2002
653
767
1236
Decoding Task
NEERC 2002
1018
495
1237
Evacuation Plan
NEERC 2002
507
985
1238
Folding
NEERC 2002
1211
417
1239
Ghost Busters
NEERC 2002
153
3121
1240
Heroes of Might and Magic
NEERC 2002
346
1429
1241
Inlay Cutters
NEERC 2002
288
1709
1242
Werewolf
USU Personal Contest 2003
2879
177
1243
Divorce of the Seven Dwarfs
USU Personal Contest 2003
10352
49
1244
Gentlemen
USU Personal Contest 2003
1992
255
1245
Pictures
USU Personal Contest 2003
522
959
1246
Tethered Dog
USU Personal Contest 2003
1514
335
1247
Check a Sequence
USU Personal Contest 2003
2112
240
1248
Sequence Sum
USU Personal Contest 2003
757
665
1249
Ancient Necropolis
USU Local Contest. March 2003
2322
219
1250
Sea Burial
USU Local Contest. March 2003
690
729
1251
Cemetery Manager
USU Local Contest. March 2003
330
1501
1252
Sorting the Tombstones
USU Local Contest. March 2003
1268
399
1253
Necrologues
USU Local Contest. March 2003
727
693
1254
Die Hard
USU Local Contest. March 2003
783
644
1255
Graveyard of the Cosa Nostra
USU Local Contest. March 2003
1811
280
1256
Cemetery Guard
USU Local Contest. March 2003
214
2279
1257
Hyphenation
Autumn School Contest 2003
282
1760
1258
Pool
Autumn School Contest 2003
1222
417
1259
How to Become Star?
Autumn School Contest 2003
1290
395
1260
Nudnik Photographer
Autumn School Contest 2003
4628
111
1261
Tips
Autumn School Contest 2003
1549
330
1262
Pseudo-Roman Number
Autumn School Contest 2003
1307
390
1263
Elections
Autumn School Contest 2003
12019
43
1264
Workdays
Autumn School Contest 2003
24372
21
1265
Mirror
USU Championship 2003
322
1548
1266
Kirchhoff's Law
USU Championship 2003
342
1460
1267
Yekaterinburg Subway
USU Championship 2003
286
1737
1268
Little Chu
USU Championship 2003
691
733
1269
Obscene Words Filter
USU Championship 2003
599
844
1270
Unicube
USU Championship 2003
205
2391
1271
Sailing Directions
USU Championship 2003
101
4631
1272
Non-Yekaterinburg Subway
USU Championship 2003
3485
147
1273
Tie
USU Championship 2003
1096
465
1274
Fractional Arithmetic
NEERC 2003 Central Subregional
736
689
1275
Knights of the Round Table
NEERC 2003 Central Subregional
205
2392
1276
Train
NEERC 2003 Central Subregional
690
735
1277
Cops and Thieves
NEERC 2003 Central Subregional
642
789
1278
“… Connecting People”
NEERC 2003 Central Subregional
509
991
1279
Warehouse
NEERC 2003 Central Subregional
1204
424
1280
Topological Sorting
NEERC 2003 Central Subregional
3628
141
1281
River Basin
NEERC 2003 Central Subregional
363
1379
1282
Game Tree
NEERC 2003 Central Subregional
1515
337
1283
Dwarf
USU Personal Contest 2004
4415
117
1284
Space Poker
USU Personal Contest 2004
210
2346
1285
Thread in a Hyperspace
USU Personal Contest 2004
306
1633
1286
Starship Travel
USU Personal Contest 2004
772
660
1287
Mars Canals
USU Personal Contest 2004
1348
380
1288
Astrolocation
USU Personal Contest 2004
211
2335
1289
One Way Ticket
USU Personal Contest 2004
1281
400
1290
Sabotage
Spring School Contest 2004
6436
80
1291
Gear-wheels
Spring School Contest 2004
1332
385
1292
Mars Space Stations
Spring School Contest 2004
1348
380
1293
Eniya
Spring School Contest 2004
35467
15
1294
Mars Satellites
Spring School Contest 2004
1627
315
1295
Crazy Notions
Spring School Contest 2004
3411
151
1296
Hyperjump
Spring School Contest 2004
8163
63
1297
Palindrome
Spring School Contest 2004
6281
82
1298
Knight
Spring School Contest 2004
2206
233
1299
Psylonians
Spring School Contest 2004
323
1550
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