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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
1956
256
1201
Which Day Is It?
USU Local Contest. March 2002
1381
362
1202
Rectangles Travel
USU Local Contest. March 2002
1126
443
1203
Scientific Conference
USU Local Contest. March 2002
6263
80
1204
Idempotents
USU Local Contest. March 2002
2186
229
1205
By the Underground or by Foot?
USU Local Contest. March 2002
2113
237
1206
Sum of Digits of the Sum of Numbers
USU Local Contest. March 2002
4056
124
1207
Median on the Plane
USU Local Contest. March 2002
4161
121
1208
Legendary Teams Contest
USU Local Contest. March 2002
2352
213
1209
1, 10, 100, 1000...
Autumn School Contest 2002
14769
34
1210
Kind Spirits
Autumn School Contest 2002
3103
163
1211
Collective Guarantee
Autumn School Contest 2002
1620
311
1212
Battleship
Autumn School Contest 2002
1023
491
1213
Cockroaches!
Autumn School Contest 2002
2965
170
1214
Strange Procedure
Autumn School Contest 2002
4965
102
1215
Exactness of Projectile Hit
Autumn School Contest 2002
1675
301
1216
Two Pawns and One King
USU Championship 2002
233
2087
1217
Unlucky Tickets
USU Championship 2002
1228
410
1218
Episode N-th: The Jedi Tournament
USU Championship 2002
1557
324
1219
Symbolic Sequence
USU Championship 2002
4223
120
1220
Stacks
USU Championship 2002
1816
278
1221
Malevich Strikes Back!
USU Championship 2002
1196
421
1222
Chernobyl’ Eagles
USU Championship 2002
3541
143
1223
Chernobyl’ Eagle on a Roof
USU Championship 2002
1715
294
1224
Spiral
NEERC 2002 Central Subregional
7649
66
1225
Flags
NEERC 2002 Central Subregional
14323
35
1226
esreveR redrO
NEERC 2002 Central Subregional
4461
113
1227
Rally Championship
NEERC 2002 Central Subregional
1671
302
1228
Array
NEERC 2002 Central Subregional
4680
108
1229
Strong Brickwork
NEERC 2002 Central Subregional
1320
381
1230
Introspective Program
NEERC 2002 Central Subregional
656
762
1231
Turing: One, Two, Three, …
NEERC 2002 Central Subregional
225
2159
1232
Asteroid Landing
NEERC 2002 Central Subregional
204
2371
1233
Amusing Numbers
NEERC 2002
539
925
1234
Bricks
NEERC 2002
730
686
1235
Cricket Field
NEERC 2002
653
766
1236
Decoding Task
NEERC 2002
1018
494
1237
Evacuation Plan
NEERC 2002
505
987
1238
Folding
NEERC 2002
1210
417
1239
Ghost Busters
NEERC 2002
153
3116
1240
Heroes of Might and Magic
NEERC 2002
345
1431
1241
Inlay Cutters
NEERC 2002
288
1706
1242
Werewolf
USU Personal Contest 2003
2875
177
1243
Divorce of the Seven Dwarfs
USU Personal Contest 2003
10347
49
1244
Gentlemen
USU Personal Contest 2003
1989
255
1245
Pictures
USU Personal Contest 2003
521
959
1246
Tethered Dog
USU Personal Contest 2003
1513
334
1247
Check a Sequence
USU Personal Contest 2003
2109
240
1248
Sequence Sum
USU Personal Contest 2003
757
664
1249
Ancient Necropolis
USU Local Contest. March 2003
2321
219
1250
Sea Burial
USU Local Contest. March 2003
689
729
1251
Cemetery Manager
USU Local Contest. March 2003
330
1499
1252
Sorting the Tombstones
USU Local Contest. March 2003
1267
399
1253
Necrologues
USU Local Contest. March 2003
726
692
1254
Die Hard
USU Local Contest. March 2003
783
643
1255
Graveyard of the Cosa Nostra
USU Local Contest. March 2003
1811
280
1256
Cemetery Guard
USU Local Contest. March 2003
214
2275
1257
Hyphenation
Autumn School Contest 2003
282
1757
1258
Pool
Autumn School Contest 2003
1220
417
1259
How to Become Star?
Autumn School Contest 2003
1290
395
1260
Nudnik Photographer
Autumn School Contest 2003
4621
111
1261
Tips
Autumn School Contest 2003
1548
329
1262
Pseudo-Roman Number
Autumn School Contest 2003
1305
390
1263
Elections
Autumn School Contest 2003
12011
43
1264
Workdays
Autumn School Contest 2003
24355
21
1265
Mirror
USU Championship 2003
322
1546
1266
Kirchhoff's Law
USU Championship 2003
342
1458
1267
Yekaterinburg Subway
USU Championship 2003
286
1734
1268
Little Chu
USU Championship 2003
690
733
1269
Obscene Words Filter
USU Championship 2003
598
844
1270
Unicube
USU Championship 2003
204
2398
1271
Sailing Directions
USU Championship 2003
101
4624
1272
Non-Yekaterinburg Subway
USU Championship 2003
3482
147
1273
Tie
USU Championship 2003
1093
465
1274
Fractional Arithmetic
NEERC 2003 Central Subregional
736
688
1275
Knights of the Round Table
NEERC 2003 Central Subregional
205
2388
1276
Train
NEERC 2003 Central Subregional
687
737
1277
Cops and Thieves
NEERC 2003 Central Subregional
639
791
1278
“… Connecting People”
NEERC 2003 Central Subregional
509
989
1279
Warehouse
NEERC 2003 Central Subregional
1202
424
1280
Topological Sorting
NEERC 2003 Central Subregional
3621
141
1281
River Basin
NEERC 2003 Central Subregional
362
1380
1282
Game Tree
NEERC 2003 Central Subregional
1512
337
1283
Dwarf
USU Personal Contest 2004
4406
117
1284
Space Poker
USU Personal Contest 2004
209
2353
1285
Thread in a Hyperspace
USU Personal Contest 2004
306
1631
1286
Starship Travel
USU Personal Contest 2004
771
660
1287
Mars Canals
USU Personal Contest 2004
1347
380
1288
Astrolocation
USU Personal Contest 2004
211
2331
1289
One Way Ticket
USU Personal Contest 2004
1281
399
1290
Sabotage
Spring School Contest 2004
6431
80
1291
Gear-wheels
Spring School Contest 2004
1330
385
1292
Mars Space Stations
Spring School Contest 2004
1346
380
1293
Eniya
Spring School Contest 2004
35438
15
1294
Mars Satellites
Spring School Contest 2004
1625
315
1295
Crazy Notions
Spring School Contest 2004
3405
151
1296
Hyperjump
Spring School Contest 2004
8155
63
1297
Palindrome
Spring School Contest 2004
6274
82
1298
Knight
Spring School Contest 2004
2204
233
1299
Psylonians
Spring School Contest 2004
323
1548
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