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::Poll
What type of programming contest do you like more?
Doesn't matter. Any
Personal (Individual)
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[results]
::problemset archive

problemset archive

ID titleaccepted
100 A+B13000
101 Domino1944
102 Coprimes4521
103 Traffic Lights918
104 Little Shop of Flowers2039
105 Div 34228
106 The Equation976
107 987654321 problem2382
108 Self-numbers II1194
109 Magic of David Copperfield II1033
110 Dungeon424
111 Very simple problem1000
112 a^b - b^a2154
113 Nearly prime numbers2309
114 Telecasting station1440
115 Calendar2879
116 Index of super-prime1327
117 Counting1948
118 Digital root1729
119 Magic pairs752
120 Arhipelago728
121 Bridges painting596
122 The book660
123 The sum4018
124 Broken line1013
125 Shtirlits801
126 Boxes1739
127 Telephone directory2124
128 Snake469
129 Inheritance362
130 Circle1585
131 Hardwood floor793
132 Another Chocolate Maniac473
133 Border1281
134 Centroid1057
135 Drawing Lines2687
136 Erasing Edges607
137 Funny Strings594
138 Games of Chess521
139 Help Needed!879
140 Integer Sequences554
141 Jumping Joe382
142 Keyword850
143 Long Live the Queen937
144 Meeting1353
145 Strange People285
146 The Runner962
147 Black-white king179
148 B-Station628
149 Computer Network870
150 Mr. Beetle II373
151 Construct a triangle630
152 Making round1020
153 Playing with matches610
154 Factorial1526
155 Cartesian Tree637
156 Strange Graph296
157 Patience294
158 Commuter Train417
159 Self-Replicating Numbers340
160 Magic Multiplying Machine646
161 Intuitionistic Logic97
162 Pyramids515
163 Wise King1055
164 Airlines309
165 Basketball500
166 Editor163
167 I-country274
168 Matrix990
169 Numbers1149
170 Particles1101
171 Sarov zones518
172 eXam1088
173 Coins146
174 Walls679
175 Encoding1304
176 Flow construction413
177 Square624
178 Chain716
179 Brackets light967
180 Inversions977
181 X-Sequence1121
182 Open the brackets230
183 Painting the balls588
184 Patties2560
185 Two shortest529
186 The chain802
187 Twist and whirl -- want to cheat426
188 Factory guard767
189 Perl-like Substr170
190 Dominoes633
191 Exhibition445
192 RGB185
193 Chinese Girls' Amusement742
194 Reactor Cooling566
195 New Year Bonus Grant479
196 Matrix Multiplication867
197 Nice Patterns Strike Back493
198 Get Out!244
199 Beautiful People630
200 Cracking RSA378
201 Non Absorbing DFA267
202 The Towers of Hanoi Revisited249
203 Hyperhuffman505
204 Little Jumper93
205 Quantization Problem231
206 Roads252
207 Robbers562
208 Toral Tickets165
209 Areas135
210 Beloved Sons521
211 Strange Counter184
212 Data Transmission164
213 Strong Defence393
214 Weird Dissimilarity303
215 PL/Cool107
216 Royal Federation187
217 Two Cylinders268
218 Unstable Systems485
219 Synchrograph172
220 Little Bishops520
221 Big Bishops437
222 Little Rooks1315
223 Little Kings627
224 Little Queens710
225 Little Knights212
226 Colored graph694
227 The art to the broad masses!97
228 Archipelago419
229 Divide and conquer177
230 Weighings620
231 Prime Sum1114
232 Infinite Fraction221
233 The Greatest Angle87
234 Black-White King Strikes Back187
235 The Queen108
236 Greedy Path241
237 Galaxy X: Episode I - Masters of Mind78
238 Uncle Vasya and Bags for Potatoes375
239 Minesweeper553
240 Runaway259
241 The United Fields of Chessboardia108
242 Student's Morning445
243 Broken Chessboard150
244 Height, Bisector and Median189
245 Black-White Army26
246 Black & White555
247 Difficult Choice174
248 Integer Linear Programming299
249 Matrix622
250 Constructive Plan122
251 Polymania140
252 Railway Communication207
253 Theodore Roosevelt286
254 Strange Random233
255 Winsock 3 Beta313
256 Balloons298
257 Debt133
258 Almost Lucky Numbers131
259 Printed PR847
260 Puzzle296
261 Discrete Roots99
262 Symbol Recognition221
263 Towers140
264 Travel152
265 Wizards67
266 Berlion40
267 Optimist vs. Pessimist246
268 Hyper Almost Permutative String63
269 Rooks502
270 Thimbles166
271 Book Pile484
272 Evacuation plan127
273 Game Po325
274 Spam-filter697
275 To xor or not to xor461
276 Andrew's Troubles1613
277 Heroes66
278 Fuel110
279 Bipermutations81
280 Trade centers208
281 Championship377
282 Isomorphism97
283 Mechanics84
284 Grammar91
285 What? Where? When?155
286 Ancient decoration168
287 Amusing Qc Machine98
288 Best Tournament Schedule236
289 Challenging Tic-Tac-Toe243
290 Defend the Milky Way50
291 Evolution319
292 Field for the Cemetery86
293 Game with Q an C56
294 He's Circles211
295 Identifier Duplicated!222
296 Sasha vs. Kate709
297 Fair-play913
298 King Berl VI96
299 Triangle624
300 Train287
301 Boring. Hot. Summer...219
302 BHTML 1.0896
303 Great Berland Wall49
304 Mars Stomatology396
305 Exhibition192
306 Balance45
307 Cipher93
308 Hyperboloid Distance29
309 Real Fun149
310 Hippopotamus422
311 Ice-cream Tycoon238
312 4-3 King19
313 Circular Railway77
314 Shortest Paths24
315 The Highway Belt22
316 Code Tanks721
317 Fast Ride299
318 Grants532
319 Kalevich Strikes Back149
320 The Influence of the Mafia97
321 The Spy Network346
322 The Great Union215
323 Aviamachinations162
324 The Text Formatting380
325 Palindrome181
326 Perspective221
327 Yet Another Palindrome67
328 A Coloring Game174
329 Black-and-White Triangle75
330 Numbers143
331 Traffic Jam11
332 Largest Circle65
333 Random Shooting11
334 Tiny Puzzle105
335 Thiefs and Cops36
336 Elections61
337 Keven188
338 Casino45
339 Segments239
340 Tex2HTML110
341 Circuits25
342 Reihenfolge137
343 VaR24
344 Weed359
345 Revolution35
346 Snooker295
347 Join the Strings421
348 Twisting the Number153
349 Wolves and Sheep57
350 XOR-omania177
351 A Mission for a Scout11
352 Beerland Attacks55
353 Billing419
354 Just Matrix162
355 Numbers Painting530
356 Extrasensory Perception233
357 Remote Control324
358 Median of Medians562
359 Pointers287
360 B++ Interpreter96
361 National Flag289
362 Robot-Annihilator381
363 Baggage room178
364 Lemmings81
365 Ships of the Desert291
366 Computer Game103
367 Contest152
368 Tests208
369 Game118
370 Rifleman173
371 Subway60
372 Tea Party104
373 Carlsson vs. Winnie-the-Pooh16
374 Save Vasya315
375 Amplifiers347
376 Berland All-Round Competitions102
377 The Lesson of Physical Culture164
378 Save the Fisher15
379 Elevator145
380 Synchronised Alpinism94
381 Bidirected Graph67
382 Cantor Function43
383 Caravans12
384 Country89
385 Highlander54
386 Happy Birthday, Jedi Knight!15
387 Lazy Judges10
388 Soap Opera26
389 Strange Planet76
390 Tickets32
391 Mr. X17
392 Cyclic Troubles21
393 Bergamot Problem69
394 Berhatton65
395 "Binary Cat" Club13
396 Dance it up!99
397 Text Editor290
398 Friends of Friends401
399 Berodoskar Development83
400 The last hour of the contest16
401 Geologist Dubrovsky28
402 Terrorists in Berland68
403 Scientific Problem568
404 Fotrune-telling with camomile500
405 Totalizator367
406 Goggle334
407 Number of Paths in the Empire220
408 Game with Points228
409 Berland Flag197
410 Galaxy in danger111
411 Petya the Hero164
412 Expedition39
413 Berland Division51
414 Orthogonal Circles18
415 Necessary Coins246
416 Optimal Dartboard147
417 Heavy Disc123
418 Deducing Grammar6
419 Hexagonal Walkaround5
420 Number Permutations28
421 k-th Product15
422 Fast Typing65
423 Battle49
424 Beautiful Graph156
425 Control Function29
426 Double Cyclic36
427 Hamiltonian Polyhedron13
428 Rebus87
429 Problem Stacks47
430 Unit-distance Graph12
431 Wildcards25
432 XYZX 200986
433 Japhshan and Ramshut59
434 Chemists54
435 UFO Circles17
436 The Diputs notation21
437 Hexodoku12
438 The Glorious Karlutka River =)47
439 A Secret Book25
440 Moles and Holes13
441 Set Division120
442 X + R(X) = N44
443 Everlasting...?325
444 Headstrong Student252
445 Dig or Climb55
446 Rotation Estimation78
447 Optimal Rest70
448 Controlled Tournament47
449 Dendrograms34
450 Ramen Shop8
451 Cousin's Aunt6
452 Colony Maintenance2
453 Meetings70
454 Kakuro19
455 Sequence analysis187
456 Annuity Payment Scheme293
457 Snow in Berland6
458 The Monochrome Picture163
459 Choreographer Problem51
460 Plural Form of Nouns440
461 Wiki Lists168
462 Electrician120
463 Walking around Berhattan323
464 Optimal bribing4
465 Fire Station Building57
466 Parking at Secret Object11
467 Chessmaster103
468 A bit of classic58
469 Ghostbusters7
470 The Death Cube8
471 Funny Game18
472 Sokoban12
473 Droid formation67
474 All for Love9
475 Be a Smart Raftsman25
476 Coach`s trouble99
477 Doors20
478 Excursion216
479 Funny Feature153
480 Gena`s Soul Cakes28
481 Hero of Our Time26
482 Impudent Thief91
483 Jealous Cucumber178
484 Kola202
485 Arrays9
486 Bulls and Cows278
487 Courier40
488 Dales and Hills157
489 Extremal Permutations52
490 Figure and Spots60
491 Game for Little Johnny43
492 Hotel in Ves Lagos74
493 Illumination of Buildings9
494 Journal7
495 Kids and Prizes103
496 L-Shapes179
497 Abelian Groups85
498 Coins5
499 Greatest Greatest Common Divisor182
500 Circular Island3
501 Octahedron And Dominoes4
502 Digits Permutation171
503 Running City12
504 Square Palindrome36
505 Prefixes and suffixes42
506 Subsequences Of Substrings154
507 Treediff83
508 Black-White Balls85
509 Chameleons All Around6
510 Distinct Substrings57
511 Fermat's Last Theorem35
512 Friendly Points10
513 Maximal Clique24
514 Polygon39
515 Recover Path52
516 Schedule3
517 Cornerless Tiling22
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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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