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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
1381
363
1202
Rectangles Travel
USU Local Contest. March 2002
1130
443
1203
Scientific Conference
USU Local Contest. March 2002
6280
80
1204
Idempotents
USU Local Contest. March 2002
2193
229
1205
By the Underground or by Foot?
USU Local Contest. March 2002
2117
237
1206
Sum of Digits of the Sum of Numbers
USU Local Contest. March 2002
4066
124
1207
Median on the Plane
USU Local Contest. March 2002
4171
121
1208
Legendary Teams Contest
USU Local Contest. March 2002
2355
213
1209
1, 10, 100, 1000...
Autumn School Contest 2002
14798
34
1210
Kind Spirits
Autumn School Contest 2002
3105
163
1211
Collective Guarantee
Autumn School Contest 2002
1625
311
1212
Battleship
Autumn School Contest 2002
1023
492
1213
Cockroaches!
Autumn School Contest 2002
2970
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
233
2092
1217
Unlucky Tickets
USU Championship 2002
1229
410
1218
Episode N-th: The Jedi Tournament
USU Championship 2002
1561
324
1219
Symbolic Sequence
USU Championship 2002
4228
120
1220
Stacks
USU Championship 2002
1819
278
1221
Malevich Strikes Back!
USU Championship 2002
1198
421
1222
Chernobyl’ Eagles
USU Championship 2002
3549
143
1223
Chernobyl’ Eagle on a Roof
USU Championship 2002
1722
294
1224
Spiral
NEERC 2002 Central Subregional
7657
66
1225
Flags
NEERC 2002 Central Subregional
14412
35
1226
esreveR redrO
NEERC 2002 Central Subregional
4469
114
1227
Rally Championship
NEERC 2002 Central Subregional
1675
302
1228
Array
NEERC 2002 Central Subregional
4694
108
1229
Strong Brickwork
NEERC 2002 Central Subregional
1321
382
1230
Introspective Program
NEERC 2002 Central Subregional
659
760
1231
Turing: One, Two, Three, …
NEERC 2002 Central Subregional
225
2164
1232
Asteroid Landing
NEERC 2002 Central Subregional
204
2376
1233
Amusing Numbers
NEERC 2002
539
927
1234
Bricks
NEERC 2002
730
688
1235
Cricket Field
NEERC 2002
653
768
1236
Decoding Task
NEERC 2002
1018
495
1237
Evacuation Plan
NEERC 2002
507
986
1238
Folding
NEERC 2002
1213
417
1239
Ghost Busters
NEERC 2002
153
3124
1240
Heroes of Might and Magic
NEERC 2002
346
1430
1241
Inlay Cutters
NEERC 2002
288
1710
1242
Werewolf
USU Personal Contest 2003
2882
177
1243
Divorce of the Seven Dwarfs
USU Personal Contest 2003
10355
49
1244
Gentlemen
USU Personal Contest 2003
1995
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
2113
240
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
1502
1252
Sorting the Tombstones
USU Local Contest. March 2003
1269
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
281
1256
Cemetery Guard
USU Local Contest. March 2003
214
2280
1257
Hyphenation
Autumn School Contest 2003
282
1761
1258
Pool
Autumn School Contest 2003
1224
417
1259
How to Become Star?
Autumn School Contest 2003
1292
395
1260
Nudnik Photographer
Autumn School Contest 2003
4629
111
1261
Tips
Autumn School Contest 2003
1551
329
1262
Pseudo-Roman Number
Autumn School Contest 2003
1307
390
1263
Elections
Autumn School Contest 2003
12031
43
1264
Workdays
Autumn School Contest 2003
24400
21
1265
Mirror
USU Championship 2003
322
1550
1266
Kirchhoff's Law
USU Championship 2003
342
1462
1267
Yekaterinburg Subway
USU Championship 2003
286
1738
1268
Little Chu
USU Championship 2003
691
734
1269
Obscene Words Filter
USU Championship 2003
599
845
1270
Unicube
USU Championship 2003
205
2393
1271
Sailing Directions
USU Championship 2003
101
4635
1272
Non-Yekaterinburg Subway
USU Championship 2003
3488
147
1273
Tie
USU Championship 2003
1097
465
1274
Fractional Arithmetic
NEERC 2003 Central Subregional
736
690
1275
Knights of the Round Table
NEERC 2003 Central Subregional
205
2394
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
992
1279
Warehouse
NEERC 2003 Central Subregional
1204
424
1280
Topological Sorting
NEERC 2003 Central Subregional
3629
141
1281
River Basin
NEERC 2003 Central Subregional
363
1380
1282
Game Tree
NEERC 2003 Central Subregional
1518
337
1283
Dwarf
USU Personal Contest 2004
4416
117
1284
Space Poker
USU Personal Contest 2004
210
2348
1285
Thread in a Hyperspace
USU Personal Contest 2004
306
1634
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
2337
1289
One Way Ticket
USU Personal Contest 2004
1283
399
1290
Sabotage
Spring School Contest 2004
6440
80
1291
Gear-wheels
Spring School Contest 2004
1332
385
1292
Mars Space Stations
Spring School Contest 2004
1349
380
1293
Eniya
Spring School Contest 2004
35514
15
1294
Mars Satellites
Spring School Contest 2004
1627
316
1295
Crazy Notions
Spring School Contest 2004
3413
151
1296
Hyperjump
Spring School Contest 2004
8171
63
1297
Palindrome
Spring School Contest 2004
6283
82
1298
Knight
Spring School Contest 2004
2209
233
1299
Psylonians
Spring School Contest 2004
323
1552
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