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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
1973
256
1201
Which Day Is It?
USU Local Contest. March 2002
1385
364
1202
Rectangles Travel
USU Local Contest. March 2002
1140
442
1203
Scientific Conference
USU Local Contest. March 2002
6407
79
1204
Idempotents
USU Local Contest. March 2002
2204
230
1205
By the Underground or by Foot?
USU Local Contest. March 2002
2151
235
1206
Sum of Digits of the Sum of Numbers
USU Local Contest. March 2002
4088
124
1207
Median on the Plane
USU Local Contest. March 2002
4210
120
1208
Legendary Teams Contest
USU Local Contest. March 2002
2366
214
1209
1, 10, 100, 1000...
Autumn School Contest 2002
14978
34
1210
Kind Spirits
Autumn School Contest 2002
3001
170
1211
Collective Guarantee
Autumn School Contest 2002
1638
311
1212
Battleship
Autumn School Contest 2002
1028
493
1213
Cockroaches!
Autumn School Contest 2002
2986
171
1214
Strange Procedure
Autumn School Contest 2002
4992
102
1215
Exactness of Projectile Hit
Autumn School Contest 2002
1694
300
1216
Two Pawns and One King
USU Championship 2002
241
2040
1217
Unlucky Tickets
USU Championship 2002
1245
408
1218
Episode N-th: The Jedi Tournament
USU Championship 2002
1577
323
1219
Symbolic Sequence
USU Championship 2002
4237
121
1220
Stacks
USU Championship 2002
1826
279
1221
Malevich Strikes Back!
USU Championship 2002
1205
421
1222
Chernobyl’ Eagles
USU Championship 2002
3555
144
1223
Chernobyl’ Eagle on a Roof
USU Championship 2002
1752
291
1224
Spiral
NEERC 2002 Central Subregional
7749
66
1225
Flags
NEERC 2002 Central Subregional
14612
35
1226
esreveR redrO
NEERC 2002 Central Subregional
4498
114
1227
Rally Championship
NEERC 2002 Central Subregional
1689
301
1228
Array
NEERC 2002 Central Subregional
4720
108
1229
Strong Brickwork
NEERC 2002 Central Subregional
1323
384
1230
Introspective Program
NEERC 2002 Central Subregional
636
793
1231
Turing: One, Two, Three, …
NEERC 2002 Central Subregional
224
2189
1232
Asteroid Landing
NEERC 2002 Central Subregional
205
2382
1233
Amusing Numbers
NEERC 2002
547
921
1234
Bricks
NEERC 2002
735
688
1235
Cricket Field
NEERC 2002
654
772
1236
Decoding Task
NEERC 2002
1021
497
1237
Evacuation Plan
NEERC 2002
508
991
1238
Folding
NEERC 2002
1227
415
1239
Ghost Busters
NEERC 2002
154
3127
1240
Heroes of Might and Magic
NEERC 2002
350
1424
1241
Inlay Cutters
NEERC 2002
291
1705
1242
Werewolf
USU Personal Contest 2003
2900
177
1243
Divorce of the Seven Dwarfs
USU Personal Contest 2003
10502
49
1244
Gentlemen
USU Personal Contest 2003
2015
254
1245
Pictures
USU Personal Contest 2003
531
950
1246
Tethered Dog
USU Personal Contest 2003
1529
334
1247
Check a Sequence
USU Personal Contest 2003
2123
241
1248
Sequence Sum
USU Personal Contest 2003
771
658
1249
Ancient Necropolis
USU Local Contest. March 2003
2330
220
1250
Sea Burial
USU Local Contest. March 2003
698
727
1251
Cemetery Manager
USU Local Contest. March 2003
334
1495
1252
Sorting the Tombstones
USU Local Contest. March 2003
1276
400
1253
Necrologues
USU Local Contest. March 2003
734
691
1254
Die Hard
USU Local Contest. March 2003
787
645
1255
Graveyard of the Cosa Nostra
USU Local Contest. March 2003
1820
281
1256
Cemetery Guard
USU Local Contest. March 2003
215
2286
1257
Hyphenation
Autumn School Contest 2003
285
1755
1258
Pool
Autumn School Contest 2003
1230
418
1259
How to Become Star?
Autumn School Contest 2003
1296
397
1260
Nudnik Photographer
Autumn School Contest 2003
4647
111
1261
Tips
Autumn School Contest 2003
1561
330
1262
Pseudo-Roman Number
Autumn School Contest 2003
1317
390
1263
Elections
Autumn School Contest 2003
12169
43
1264
Workdays
Autumn School Contest 2003
24698
21
1265
Mirror
USU Championship 2003
327
1537
1266
Kirchhoff's Law
USU Championship 2003
351
1435
1267
Yekaterinburg Subway
USU Championship 2003
289
1733
1268
Little Chu
USU Championship 2003
701
729
1269
Obscene Words Filter
USU Championship 2003
602
847
1270
Unicube
USU Championship 2003
214
2313
1271
Sailing Directions
USU Championship 2003
103
4585
1272
Non-Yekaterinburg Subway
USU Championship 2003
3502
148
1273
Tie
USU Championship 2003
1109
463
1274
Fractional Arithmetic
NEERC 2003 Central Subregional
747
685
1275
Knights of the Round Table
NEERC 2003 Central Subregional
206
2400
1276
Train
NEERC 2003 Central Subregional
695
735
1277
Cops and Thieves
NEERC 2003 Central Subregional
587
868
1278
“… Connecting People”
NEERC 2003 Central Subregional
515
987
1279
Warehouse
NEERC 2003 Central Subregional
1214
423
1280
Topological Sorting
NEERC 2003 Central Subregional
3655
141
1281
River Basin
NEERC 2003 Central Subregional
276
1812
1282
Game Tree
NEERC 2003 Central Subregional
1529
337
1283
Dwarf
USU Personal Contest 2004
4493
115
1284
Space Poker
USU Personal Contest 2004
213
2332
1285
Thread in a Hyperspace
USU Personal Contest 2004
312
1615
1286
Starship Travel
USU Personal Contest 2004
783
656
1287
Mars Canals
USU Personal Contest 2004
1354
381
1288
Astrolocation
USU Personal Contest 2004
221
2251
1289
One Way Ticket
USU Personal Contest 2004
1297
398
1290
Sabotage
Spring School Contest 2004
6479
80
1291
Gear-wheels
Spring School Contest 2004
1348
383
1292
Mars Space Stations
Spring School Contest 2004
1360
380
1293
Eniya
Spring School Contest 2004
35931
14
1294
Mars Satellites
Spring School Contest 2004
1635
316
1295
Crazy Notions
Spring School Contest 2004
3430
151
1296
Hyperjump
Spring School Contest 2004
8319
62
1297
Palindrome
Spring School Contest 2004
6326
82
1298
Knight
Spring School Contest 2004
2225
233
1299
Psylonians
Spring School Contest 2004
328
1539
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