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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
1951
256
1201
Which Day Is It?
USU Local Contest. March 2002
1379
361
1202
Rectangles Travel
USU Local Contest. March 2002
1122
443
1203
Scientific Conference
USU Local Contest. March 2002
6256
80
1204
Idempotents
USU Local Contest. March 2002
2179
229
1205
By the Underground or by Foot?
USU Local Contest. March 2002
2109
237
1206
Sum of Digits of the Sum of Numbers
USU Local Contest. March 2002
4053
124
1207
Median on the Plane
USU Local Contest. March 2002
4157
120
1208
Legendary Teams Contest
USU Local Contest. March 2002
2347
213
1209
1, 10, 100, 1000...
Autumn School Contest 2002
14738
34
1210
Kind Spirits
Autumn School Contest 2002
3100
163
1211
Collective Guarantee
Autumn School Contest 2002
1619
310
1212
Battleship
Autumn School Contest 2002
1020
491
1213
Cockroaches!
Autumn School Contest 2002
2964
170
1214
Strange Procedure
Autumn School Contest 2002
4958
102
1215
Exactness of Projectile Hit
Autumn School Contest 2002
1675
300
1216
Two Pawns and One King
USU Championship 2002
233
2082
1217
Unlucky Tickets
USU Championship 2002
1227
409
1218
Episode N-th: The Jedi Tournament
USU Championship 2002
1556
323
1219
Symbolic Sequence
USU Championship 2002
4218
120
1220
Stacks
USU Championship 2002
1816
277
1221
Malevich Strikes Back!
USU Championship 2002
1189
422
1222
Chernobyl’ Eagles
USU Championship 2002
3538
143
1223
Chernobyl’ Eagle on a Roof
USU Championship 2002
1713
294
1224
Spiral
NEERC 2002 Central Subregional
7640
66
1225
Flags
NEERC 2002 Central Subregional
14305
35
1226
esreveR redrO
NEERC 2002 Central Subregional
4459
113
1227
Rally Championship
NEERC 2002 Central Subregional
1670
301
1228
Array
NEERC 2002 Central Subregional
4679
108
1229
Strong Brickwork
NEERC 2002 Central Subregional
1317
381
1230
Introspective Program
NEERC 2002 Central Subregional
654
762
1231
Turing: One, Two, Three, …
NEERC 2002 Central Subregional
224
2162
1232
Asteroid Landing
NEERC 2002 Central Subregional
204
2365
1233
Amusing Numbers
NEERC 2002
536
928
1234
Bricks
NEERC 2002
730
685
1235
Cricket Field
NEERC 2002
652
765
1236
Decoding Task
NEERC 2002
1016
494
1237
Evacuation Plan
NEERC 2002
504
987
1238
Folding
NEERC 2002
1208
416
1239
Ghost Busters
NEERC 2002
153
3108
1240
Heroes of Might and Magic
NEERC 2002
345
1427
1241
Inlay Cutters
NEERC 2002
287
1707
1242
Werewolf
USU Personal Contest 2003
2865
177
1243
Divorce of the Seven Dwarfs
USU Personal Contest 2003
10336
49
1244
Gentlemen
USU Personal Contest 2003
1984
255
1245
Pictures
USU Personal Contest 2003
521
957
1246
Tethered Dog
USU Personal Contest 2003
1512
334
1247
Check a Sequence
USU Personal Contest 2003
2105
240
1248
Sequence Sum
USU Personal Contest 2003
755
664
1249
Ancient Necropolis
USU Local Contest. March 2003
2319
218
1250
Sea Burial
USU Local Contest. March 2003
686
730
1251
Cemetery Manager
USU Local Contest. March 2003
330
1495
1252
Sorting the Tombstones
USU Local Contest. March 2003
1265
399
1253
Necrologues
USU Local Contest. March 2003
723
693
1254
Die Hard
USU Local Contest. March 2003
782
642
1255
Graveyard of the Cosa Nostra
USU Local Contest. March 2003
1809
279
1256
Cemetery Guard
USU Local Contest. March 2003
213
2279
1257
Hyphenation
Autumn School Contest 2003
282
1753
1258
Pool
Autumn School Contest 2003
1219
416
1259
How to Become Star?
Autumn School Contest 2003
1289
394
1260
Nudnik Photographer
Autumn School Contest 2003
4619
111
1261
Tips
Autumn School Contest 2003
1548
328
1262
Pseudo-Roman Number
Autumn School Contest 2003
1304
389
1263
Elections
Autumn School Contest 2003
12000
43
1264
Workdays
Autumn School Contest 2003
24302
21
1265
Mirror
USU Championship 2003
322
1542
1266
Kirchhoff's Law
USU Championship 2003
341
1459
1267
Yekaterinburg Subway
USU Championship 2003
286
1730
1268
Little Chu
USU Championship 2003
688
733
1269
Obscene Words Filter
USU Championship 2003
595
846
1270
Unicube
USU Championship 2003
203
2404
1271
Sailing Directions
USU Championship 2003
101
4612
1272
Non-Yekaterinburg Subway
USU Championship 2003
3473
147
1273
Tie
USU Championship 2003
1091
465
1274
Fractional Arithmetic
NEERC 2003 Central Subregional
735
688
1275
Knights of the Round Table
NEERC 2003 Central Subregional
205
2382
1276
Train
NEERC 2003 Central Subregional
686
736
1277
Cops and Thieves
NEERC 2003 Central Subregional
636
793
1278
“… Connecting People”
NEERC 2003 Central Subregional
509
987
1279
Warehouse
NEERC 2003 Central Subregional
1202
423
1280
Topological Sorting
NEERC 2003 Central Subregional
3616
141
1281
River Basin
NEERC 2003 Central Subregional
362
1377
1282
Game Tree
NEERC 2003 Central Subregional
1510
337
1283
Dwarf
USU Personal Contest 2004
4402
116
1284
Space Poker
USU Personal Contest 2004
208
2358
1285
Thread in a Hyperspace
USU Personal Contest 2004
306
1626
1286
Starship Travel
USU Personal Contest 2004
768
661
1287
Mars Canals
USU Personal Contest 2004
1344
380
1288
Astrolocation
USU Personal Contest 2004
210
2336
1289
One Way Ticket
USU Personal Contest 2004
1278
399
1290
Sabotage
Spring School Contest 2004
6428
80
1291
Gear-wheels
Spring School Contest 2004
1328
384
1292
Mars Space Stations
Spring School Contest 2004
1345
379
1293
Eniya
Spring School Contest 2004
35374
15
1294
Mars Satellites
Spring School Contest 2004
1624
315
1295
Crazy Notions
Spring School Contest 2004
3403
151
1296
Hyperjump
Spring School Contest 2004
8147
63
1297
Palindrome
Spring School Contest 2004
6268
82
1298
Knight
Spring School Contest 2004
2198
233
1299
Psylonians
Spring School Contest 2004
323
1544
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