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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
1926
254
1201
Which Day Is It?
USU Local Contest. March 2002
1361
359
1202
Rectangles Travel
USU Local Contest. March 2002
1108
440
1203
Scientific Conference
USU Local Contest. March 2002
5999
82
1204
Idempotents
USU Local Contest. March 2002
2149
228
1205
By the Underground or by Foot?
USU Local Contest. March 2002
2070
236
1206
Sum of Digits of the Sum of Numbers
USU Local Contest. March 2002
4008
122
1207
Median on the Plane
USU Local Contest. March 2002
3905
126
1208
Legendary Teams Contest
USU Local Contest. March 2002
2311
212
1209
1, 10, 100, 1000...
Autumn School Contest 2002
14432
34
1210
Kind Spirits
Autumn School Contest 2002
3031
163
1211
Collective Guarantee
Autumn School Contest 2002
1592
309
1212
Battleship
Autumn School Contest 2002
1009
486
1213
Cockroaches!
Autumn School Contest 2002
2932
168
1214
Strange Procedure
Autumn School Contest 2002
4889
101
1215
Exactness of Projectile Hit
Autumn School Contest 2002
1650
298
1216
Two Pawns and One King
USU Championship 2002
231
2057
1217
Unlucky Tickets
USU Championship 2002
1205
408
1218
Episode N-th: The Jedi Tournament
USU Championship 2002
1537
320
1219
Symbolic Sequence
USU Championship 2002
4170
119
1220
Stacks
USU Championship 2002
1793
275
1221
Malevich Strikes Back!
USU Championship 2002
1166
422
1222
Chernobyl’ Eagles
USU Championship 2002
3501
141
1223
Chernobyl’ Eagle on a Roof
USU Championship 2002
1671
295
1224
Spiral
NEERC 2002 Central Subregional
7499
66
1225
Flags
NEERC 2002 Central Subregional
13966
35
1226
esreveR redrO
NEERC 2002 Central Subregional
4393
113
1227
Rally Championship
NEERC 2002 Central Subregional
1649
299
1228
Array
NEERC 2002 Central Subregional
4632
107
1229
Strong Brickwork
NEERC 2002 Central Subregional
1299
379
1230
Introspective Program
NEERC 2002 Central Subregional
646
756
1231
Turing: One, Two, Three, …
NEERC 2002 Central Subregional
222
2137
1232
Asteroid Landing
NEERC 2002 Central Subregional
202
2339
1233
Amusing Numbers
NEERC 2002
514
947
1234
Bricks
NEERC 2002
723
677
1235
Cricket Field
NEERC 2002
644
759
1236
Decoding Task
NEERC 2002
999
492
1237
Evacuation Plan
NEERC 2002
499
976
1238
Folding
NEERC 2002
1176
419
1239
Ghost Busters
NEERC 2002
152
3065
1240
Heroes of Might and Magic
NEERC 2002
341
1414
1241
Inlay Cutters
NEERC 2002
284
1690
1242
Werewolf
USU Personal Contest 2003
2787
178
1243
Divorce of the Seven Dwarfs
USU Personal Contest 2003
10124
49
1244
Gentlemen
USU Personal Contest 2003
1946
255
1245
Pictures
USU Personal Contest 2003
512
954
1246
Tethered Dog
USU Personal Contest 2003
1495
331
1247
Check a Sequence
USU Personal Contest 2003
2079
238
1248
Sequence Sum
USU Personal Contest 2003
742
662
1249
Ancient Necropolis
USU Local Contest. March 2003
2295
216
1250
Sea Burial
USU Local Contest. March 2003
678
724
1251
Cemetery Manager
USU Local Contest. March 2003
323
1496
1252
Sorting the Tombstones
USU Local Contest. March 2003
1239
399
1253
Necrologues
USU Local Contest. March 2003
704
698
1254
Die Hard
USU Local Contest. March 2003
770
639
1255
Graveyard of the Cosa Nostra
USU Local Contest. March 2003
1789
277
1256
Cemetery Guard
USU Local Contest. March 2003
210
2264
1257
Hyphenation
Autumn School Contest 2003
279
1736
1258
Pool
Autumn School Contest 2003
1196
416
1259
How to Become Star?
Autumn School Contest 2003
1269
392
1260
Nudnik Photographer
Autumn School Contest 2003
4514
111
1261
Tips
Autumn School Contest 2003
1508
331
1262
Pseudo-Roman Number
Autumn School Contest 2003
1287
387
1263
Elections
Autumn School Contest 2003
11765
43
1264
Workdays
Autumn School Contest 2003
23676
21
1265
Mirror
USU Championship 2003
317
1535
1266
Kirchhoff's Law
USU Championship 2003
335
1455
1267
Yekaterinburg Subway
USU Championship 2003
280
1731
1268
Little Chu
USU Championship 2003
672
736
1269
Obscene Words Filter
USU Championship 2003
581
849
1270
Unicube
USU Championship 2003
202
2368
1271
Sailing Directions
USU Championship 2003
98
4648
1272
Non-Yekaterinburg Subway
USU Championship 2003
3374
148
1273
Tie
USU Championship 2003
1077
462
1274
Fractional Arithmetic
NEERC 2003 Central Subregional
710
697
1275
Knights of the Round Table
NEERC 2003 Central Subregional
200
2391
1276
Train
NEERC 2003 Central Subregional
675
733
1277
Cops and Thieves
NEERC 2003 Central Subregional
626
790
1278
“… Connecting People”
NEERC 2003 Central Subregional
502
981
1279
Warehouse
NEERC 2003 Central Subregional
1184
421
1280
Topological Sorting
NEERC 2003 Central Subregional
3536
142
1281
River Basin
NEERC 2003 Central Subregional
349
1399
1282
Game Tree
NEERC 2003 Central Subregional
1486
336
1283
Dwarf
USU Personal Contest 2004
4279
118
1284
Space Poker
USU Personal Contest 2004
204
2355
1285
Thread in a Hyperspace
USU Personal Contest 2004
300
1626
1286
Starship Travel
USU Personal Contest 2004
756
658
1287
Mars Canals
USU Personal Contest 2004
1322
378
1288
Astrolocation
USU Personal Contest 2004
206
2333
1289
One Way Ticket
USU Personal Contest 2004
1263
396
1290
Sabotage
Spring School Contest 2004
6355
79
1291
Gear-wheels
Spring School Contest 2004
1300
385
1292
Mars Space Stations
Spring School Contest 2004
1329
377
1293
Eniya
Spring School Contest 2004
34495
15
1294
Mars Satellites
Spring School Contest 2004
1608
312
1295
Crazy Notions
Spring School Contest 2004
3343
150
1296
Hyperjump
Spring School Contest 2004
7744
65
1297
Palindrome
Spring School Contest 2004
6176
82
1298
Knight
Spring School Contest 2004
2167
232
1299
Psylonians
Spring School Contest 2004
320
1528
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