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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
1879
250
1201
Which Day Is It?
USU Local Contest. March 2002
1329
353
1202
Rectangles Travel
USU Local Contest. March 2002
1046
448
1203
Scientific Conference
USU Local Contest. March 2002
5607
84
1204
Idempotents
USU Local Contest. March 2002
2088
226
1205
By the Underground or by Foot?
USU Local Contest. March 2002
2009
234
1206
Sum of Digits of the Sum of Numbers
USU Local Contest. March 2002
3909
121
1207
Median on the Plane
USU Local Contest. March 2002
2970
159
1208
Legendary Teams Contest
USU Local Contest. March 2002
2228
211
1209
1, 10, 100, 1000...
Autumn School Contest 2002
13517
35
1210
Kind Spirits
Autumn School Contest 2002
2943
162
1211
Collective Guarantee
Autumn School Contest 2002
1495
317
1212
Battleship
Autumn School Contest 2002
941
502
1213
Cockroaches!
Autumn School Contest 2002
2809
169
1214
Strange Procedure
Autumn School Contest 2002
4736
101
1215
Exactness of Projectile Hit
Autumn School Contest 2002
1576
301
1216
Two Pawns and One King
USU Championship 2002
220
2075
1217
Unlucky Tickets
USU Championship 2002
1162
407
1218
Episode N-th: The Jedi Tournament
USU Championship 2002
1476
321
1219
Symbolic Sequence
USU Championship 2002
4059
117
1220
Stacks
USU Championship 2002
1739
273
1221
Malevich Strikes Back!
USU Championship 2002
1124
421
1222
Chernobyl’ Eagles
USU Championship 2002
3409
140
1223
Chernobyl’ Eagle on a Roof
USU Championship 2002
1593
298
1224
Spiral
NEERC 2002 Central Subregional
7124
67
1225
Flags
NEERC 2002 Central Subregional
13106
36
1226
esreveR redrO
NEERC 2002 Central Subregional
4282
111
1227
Rally Championship
NEERC 2002 Central Subregional
1561
304
1228
Array
NEERC 2002 Central Subregional
4531
105
1229
Strong Brickwork
NEERC 2002 Central Subregional
1263
375
1230
Introspective Program
NEERC 2002 Central Subregional
630
746
1231
Turing: One, Two, Three, …
NEERC 2002 Central Subregional
213
2141
1232
Asteroid Landing
NEERC 2002 Central Subregional
190
2387
1233
Amusing Numbers
NEERC 2002
497
943
1234
Bricks
NEERC 2002
694
679
1235
Cricket Field
NEERC 2002
624
754
1236
Decoding Task
NEERC 2002
940
503
1237
Evacuation Plan
NEERC 2002
489
959
1238
Folding
NEERC 2002
1121
423
1239
Ghost Busters
NEERC 2002
148
3026
1240
Heroes of Might and Magic
NEERC 2002
329
1410
1241
Inlay Cutters
NEERC 2002
280
1650
1242
Werewolf
USU Personal Contest 2003
2628
182
1243
Divorce of the Seven Dwarfs
USU Personal Contest 2003
9592
50
1244
Gentlemen
USU Personal Contest 2003
1872
255
1245
Pictures
USU Personal Contest 2003
504
933
1246
Tethered Dog
USU Personal Contest 2003
1438
331
1247
Check a Sequence
USU Personal Contest 2003
2017
237
1248
Sequence Sum
USU Personal Contest 2003
716
661
1249
Ancient Necropolis
USU Local Contest. March 2003
2226
215
1250
Sea Burial
USU Local Contest. March 2003
663
713
1251
Cemetery Manager
USU Local Contest. March 2003
308
1509
1252
Sorting the Tombstones
USU Local Contest. March 2003
1186
401
1253
Necrologues
USU Local Contest. March 2003
684
691
1254
Die Hard
USU Local Contest. March 2003
741
639
1255
Graveyard of the Cosa Nostra
USU Local Contest. March 2003
1755
272
1256
Cemetery Guard
USU Local Contest. March 2003
200
2285
1257
Hyphenation
Autumn School Contest 2003
273
1709
1258
Pool
Autumn School Contest 2003
1152
416
1259
How to Become Star?
Autumn School Contest 2003
1227
391
1260
Nudnik Photographer
Autumn School Contest 2003
4369
110
1261
Tips
Autumn School Contest 2003
1446
332
1262
Pseudo-Roman Number
Autumn School Contest 2003
1257
382
1263
Elections
Autumn School Contest 2003
11138
43
1264
Workdays
Autumn School Contest 2003
22022
22
1265
Mirror
USU Championship 2003
309
1516
1266
Kirchhoff's Law
USU Championship 2003
320
1466
1267
Yekaterinburg Subway
USU Championship 2003
250
1861
1268
Little Chu
USU Championship 2003
653
730
1269
Obscene Words Filter
USU Championship 2003
566
840
1270
Unicube
USU Championship 2003
193
2383
1271
Sailing Directions
USU Championship 2003
94
4651
1272
Non-Yekaterinburg Subway
USU Championship 2003
3216
150
1273
Tie
USU Championship 2003
1031
465
1274
Fractional Arithmetic
NEERC 2003 Central Subregional
693
688
1275
Knights of the Round Table
NEERC 2003 Central Subregional
189
2432
1276
Train
NEERC 2003 Central Subregional
620
768
1277
Cops and Thieves
NEERC 2003 Central Subregional
609
782
1278
“… Connecting People”
NEERC 2003 Central Subregional
487
974
1279
Warehouse
NEERC 2003 Central Subregional
1159
414
1280
Topological Sorting
NEERC 2003 Central Subregional
3390
142
1281
River Basin
NEERC 2003 Central Subregional
338
1391
1282
Game Tree
NEERC 2003 Central Subregional
1437
334
1283
Dwarf
USU Personal Contest 2004
4064
119
1284
Space Poker
USU Personal Contest 2004
196
2359
1285
Thread in a Hyperspace
USU Personal Contest 2004
285
1647
1286
Starship Travel
USU Personal Contest 2004
715
670
1287
Mars Canals
USU Personal Contest 2004
1288
374
1288
Astrolocation
USU Personal Contest 2004
202
2292
1289
One Way Ticket
USU Personal Contest 2004
1222
394
1290
Sabotage
Spring School Contest 2004
6133
79
1291
Gear-wheels
Spring School Contest 2004
1225
394
1292
Mars Space Stations
Spring School Contest 2004
1298
372
1293
Eniya
Spring School Contest 2004
31959
15
1294
Mars Satellites
Spring School Contest 2004
1560
310
1295
Crazy Notions
Spring School Contest 2004
3203
151
1296
Hyperjump
Spring School Contest 2004
6415
76
1297
Palindrome
Spring School Contest 2004
5906
82
1298
Knight
Spring School Contest 2004
2093
231
1299
Psylonians
Spring School Contest 2004
316
1491
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