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::Poll
What type of programming contest do you like more?
Doesn't matter. Any
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[results]

::problemset archive

problemset archive

ID titleaccepted
100 A+B13618
101 Domino2143
102 Coprimes4870
103 Traffic Lights1020
104 Little Shop of Flowers2205
105 Div 34549
106 The Equation1078
107 987654321 problem2569
108 Self-numbers II1305
109 Magic of David Copperfield II1130
110 Dungeon455
111 Very simple problem1086
112 a^b - b^a2321
113 Nearly prime numbers2481
114 Telecasting station1552
115 Calendar3040
116 Index of super-prime1425
117 Counting2093
118 Digital root1841
119 Magic pairs833
120 Arhipelago797
121 Bridges painting655
122 The book728
123 The sum4272
124 Broken line1089
125 Shtirlits864
126 Boxes1849
127 Telephone directory2271
128 Snake526
129 Inheritance390
130 Circle1689
131 Hardwood floor888
132 Another Chocolate Maniac525
133 Border1386
134 Centroid1146
135 Drawing Lines2865
136 Erasing Edges660
137 Funny Strings646
138 Games of Chess563
139 Help Needed!940
140 Integer Sequences603
141 Jumping Joe420
142 Keyword793
143 Long Live the Queen1007
144 Meeting1443
145 Strange People323
146 The Runner1039
147 Black-white king198
148 B-Station694
149 Computer Network929
150 Mr. Beetle II402
151 Construct a triangle673
152 Making round1090
153 Playing with matches658
154 Factorial1630
155 Cartesian Tree696
156 Strange Graph316
157 Patience315
158 Commuter Train451
159 Self-Replicating Numbers361
160 Magic Multiplying Machine692
161 Intuitionistic Logic101
162 Pyramids552
163 Wise King1129
164 Airlines340
165 Basketball536
166 Editor172
167 I-country297
168 Matrix1060
169 Numbers1228
170 Particles1178
171 Sarov zones545
172 eXam1169
173 Coins156
174 Walls739
175 Encoding1397
176 Flow construction526
177 Square674
178 Chain776
179 Brackets light1032
180 Inversions1088
181 X-Sequence1205
182 Open the brackets242
183 Painting the balls649
184 Patties2749
185 Two shortest595
186 The chain857
187 Twist and whirl -- want to cheat483
188 Factory guard819
189 Perl-like Substr181
190 Dominoes676
191 Exhibition481
192 RGB219
193 Chinese Girls' Amusement805
194 Reactor Cooling652
195 New Year Bonus Grant518
196 Matrix Multiplication933
197 Nice Patterns Strike Back540
198 Get Out!265
199 Beautiful People706
200 Cracking RSA413
201 Non Absorbing DFA290
202 The Towers of Hanoi Revisited267
203 Hyperhuffman545
204 Little Jumper99
205 Quantization Problem244
206 Roads285
207 Robbers607
208 Toral Tickets178
209 Areas147
210 Beloved Sons571
211 Strange Counter193
212 Data Transmission179
213 Strong Defence427
214 Weird Dissimilarity317
215 PL/Cool114
216 Royal Federation197
217 Two Cylinders285
218 Unstable Systems527
219 Synchrograph186
220 Little Bishops571
221 Big Bishops475
222 Little Rooks1433
223 Little Kings713
224 Little Queens769
225 Little Knights231
226 Colored graph752
227 The art to the broad masses!100
228 Archipelago454
229 Divide and conquer188
230 Weighings671
231 Prime Sum1228
232 Infinite Fraction238
233 The Greatest Angle91
234 Black-White King Strikes Back198
235 The Queen112
236 Greedy Path254
237 Galaxy X: Episode I - Masters of Mind84
238 Uncle Vasya and Bags for Potatoes390
239 Minesweeper591
240 Runaway268
241 The United Fields of Chessboardia110
242 Student's Morning491
243 Broken Chessboard155
244 Height, Bisector and Median196
245 Black-White Army30
246 Black & White595
247 Difficult Choice186
248 Integer Linear Programming316
249 Matrix671
250 Constructive Plan128
251 Polymania147
252 Railway Communication220
253 Theodore Roosevelt312
254 Strange Random246
255 Winsock 3 Beta333
256 Balloons323
257 Debt140
258 Almost Lucky Numbers137
259 Printed PR903
260 Puzzle326
261 Discrete Roots126
262 Symbol Recognition236
263 Towers148
264 Travel163
265 Wizards70
266 Berlion40
267 Optimist vs. Pessimist258
268 Hyper Almost Permutative String64
269 Rooks543
270 Thimbles179
271 Book Pile517
272 Evacuation plan134
273 Game Po348
274 Spam-filter740
275 To xor or not to xor497
276 Andrew's Troubles1723
277 Heroes74
278 Fuel117
279 Bipermutations88
280 Trade centers218
281 Championship404
282 Isomorphism120
283 Mechanics90
284 Grammar99
285 What? Where? When?161
286 Ancient decoration175
287 Amusing Qc Machine102
288 Best Tournament Schedule247
289 Challenging Tic-Tac-Toe257
290 Defend the Milky Way55
291 Evolution353
292 Field for the Cemetery90
293 Game with Q an C60
294 He's Circles247
295 Identifier Duplicated!240
296 Sasha vs. Kate787
297 Fair-play1000
298 King Berl VI103
299 Triangle694
300 Train313
301 Boring. Hot. Summer...247
302 BHTML 1.0985
303 Great Berland Wall54
304 Mars Stomatology453
305 Exhibition231
306 Balance49
307 Cipher112
308 Hyperboloid Distance30
309 Real Fun160
310 Hippopotamus462
311 Ice-cream Tycoon269
312 4-3 King19
313 Circular Railway87
314 Shortest Paths25
315 The Highway Belt26
316 Code Tanks793
317 Fast Ride340
318 Grants580
319 Kalevich Strikes Back159
320 The Influence of the Mafia108
321 The Spy Network375
322 The Great Union243
323 Aviamachinations178
324 The Text Formatting407
325 Palindrome192
326 Perspective268
327 Yet Another Palindrome73
328 A Coloring Game195
329 Black-and-White Triangle81
330 Numbers163
331 Traffic Jam13
332 Largest Circle79
333 Random Shooting12
334 Tiny Puzzle112
335 Thiefs and Cops42
336 Elections82
337 Keven218
338 Casino59
339 Segments272
340 Tex2HTML130
341 Circuits26
342 Reihenfolge167
343 VaR26
344 Weed408
345 Revolution43
346 Snooker329
347 Join the Strings478
348 Twisting the Number164
349 Wolves and Sheep65
350 XOR-omania198
351 A Mission for a Scout11
352 Beerland Attacks72
353 Billing483
354 Just Matrix181
355 Numbers Painting610
356 Extrasensory Perception260
357 Remote Control363
358 Median of Medians660
359 Pointers315
360 B++ Interpreter109
361 National Flag324
362 Robot-Annihilator437
363 Baggage room202
364 Lemmings87
365 Ships of the Desert324
366 Computer Game112
367 Contest166
368 Tests229
369 Game147
370 Rifleman209
371 Subway65
372 Tea Party124
373 Carlsson vs. Winnie-the-Pooh21
374 Save Vasya367
375 Amplifiers404
376 Berland All-Round Competitions115
377 The Lesson of Physical Culture203
378 Save the Fisher17
379 Elevator161
380 Synchronised Alpinism104
381 Bidirected Graph73
382 Cantor Function48
383 Caravans13
384 Country98
385 Highlander66
386 Happy Birthday, Jedi Knight!19
387 Lazy Judges11
388 Soap Opera27
389 Strange Planet86
390 Tickets45
391 Mr. X20
392 Cyclic Troubles23
393 Bergamot Problem75
394 Berhatton78
395 "Binary Cat" Club15
396 Dance it up!111
397 Text Editor344
398 Friends of Friends463
399 Berodoskar Development91
400 The last hour of the contest18
401 Geologist Dubrovsky31
402 Terrorists in Berland83
403 Scientific Problem681
404 Fotrune-telling with camomile597
405 Totalizator420
406 Goggle375
407 Number of Paths in the Empire253
408 Game with Points255
409 Berland Flag228
410 Galaxy in danger124
411 Petya the Hero184
412 Expedition44
413 Berland Division62
414 Orthogonal Circles22
415 Necessary Coins284
416 Optimal Dartboard161
417 Heavy Disc147
418 Deducing Grammar7
419 Hexagonal Walkaround8
420 Number Permutations34
421 k-th Product17
422 Fast Typing78
423 Battle55
424 Beautiful Graph178
425 Control Function32
426 Double Cyclic41
427 Hamiltonian Polyhedron15
428 Rebus94
429 Problem Stacks62
430 Unit-distance Graph14
431 Wildcards27
432 XYZX 200991
433 Japhshan and Ramshut64
434 Chemists73
435 UFO Circles20
436 The Diputs notation25
437 Hexodoku15
438 The Glorious Karlutka River =)70
439 A Secret Book29
440 Moles and Holes18
441 Set Division152
442 X + R(X) = N53
443 Everlasting...?375
444 Headstrong Student288
445 Dig or Climb65
446 Rotation Estimation92
447 Optimal Rest79
448 Controlled Tournament53
449 Dendrograms40
450 Ramen Shop9
451 Cousin's Aunt10
452 Colony Maintenance2
453 Meetings77
454 Kakuro21
455 Sequence analysis220
456 Annuity Payment Scheme327
457 Snow in Berland8
458 The Monochrome Picture197
459 Choreographer Problem59
460 Plural Form of Nouns519
461 Wiki Lists179
462 Electrician146
463 Walking around Berhattan360
464 Optimal bribing4
465 Fire Station Building70
466 Parking at Secret Object14
467 Chessmaster113
468 A bit of classic63
469 Ghostbusters14
470 The Death Cube9
471 Funny Game20
472 Sokoban16
473 Droid formation80
474 All for Love12
475 Be a Smart Raftsman29
476 Coach`s trouble123
477 Doors28
478 Excursion250
479 Funny Feature179
480 Gena`s Soul Cakes34
481 Hero of Our Time34
482 Impudent Thief116
483 Jealous Cucumber207
484 Kola240
485 Arrays14
486 Bulls and Cows360
487 Courier61
488 Dales and Hills196
489 Extremal Permutations86
490 Figure and Spots75
491 Game for Little Johnny62
492 Hotel in Ves Lagos105
493 Illumination of Buildings13
494 Journal9
495 Kids and Prizes138
496 L-Shapes225
497 Abelian Groups103
498 Coins8
499 Greatest Greatest Common Divisor236
500 Circular Island4
501 Octahedron And Dominoes8
502 Digits Permutation257
503 Running City19
504 Square Palindrome51
505 Prefixes and suffixes61
506 Subsequences Of Substrings215
507 Treediff107
508 Black-White Balls122
509 Chameleons All Around10
510 Distinct Substrings79
511 Fermat's Last Theorem51
512 Friendly Points31
513 Maximal Clique31
514 Polygon49
515 Recover Path78
516 Schedule4
517 Cornerless Tiling25



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::News
01.02.10 - We would like to introduce a programming competition portal Codeforces (and russian version).
27.12.09 - The problemset for "Petr Mitrichev Contest 6" is available as PDF.
20.12.09 - The problemset for "Petr Mitrichev Contest 5" is available as PDF.

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