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list of classical problems


ID NAME QUALITY USERS ACC % DIFFICULTY C I
204 Sleepwalker   82 27.73
205 Icerink   6 11.43
206 Bitmap   237 8232 27.06
15
16
207 Three-coloring of binary trees   16 835 35.82
20
17
208 Store-keeper   2 94 13.47
34
34
209 The Map   220 43.08
210 The Altars   42 14.32
211 Primitivus recurencis   200 25.74
212 Water among Cubes   49 1220 26.52
25
27
215 Panic in the Plazas   77 19.50
217 Soldiers on Parade   2 119 27.86
26
17
220 Relevant Phrases of Annihilation   531 21.68
17
17
224 Vonny and her dominos   4 602 52.21
9
9
226 Jewelry and Fashion   1 18 14.78
34
50
227 Ordering the Soldiers   21 1367 33.07
19
22
228 Shamans   134 20.48
229 Sorting is easy   116 23.91
231 The Zebra Crossing   10 2.52
234 Getting Rid of the Holidays (Act I)   93 13.82
235 Very Fast Multiplication   22 1045 28.24
26
22
236 Converting number formats   144 43.19
237 Sums in a Triangle   -13 3471 42.09
27
10
238 Getting Rid of the Holidays (Act II)   77 15.58
239 Tour de Byteland   1 79 24.77
17
17
241 Arranging the Blocks   51 12.77
243 Stable Marriage Problem   11 1345 41.90
19
23
245 Square Root   5 490 14.33
27
11
247 Chocolate   71 4585 46.47
10
18
260 Containers   2 275 45.98
23
17
261 Triangle Partitioning   196 58.70
262 Connections   1 98 27.21
34
34
263 Period   50 2390 38.49
12
17
264 Corporative Network   14 511 23.95
19
21
272 Cave Exploration   1 36 16.48
274 Johnny and the Watermelon Plantation   209 24.24
275 The Water Ringroad   2 11.76
277 City Game   16 1130 37.94
20
21
278 Bicycle   53 14.29
279 Interesting number   24 751 23.66
18
25
280 Lifts   41 18.21
283 Naptime   250 16.42
286 Selfish Cities   1 668 38.70
34
34
287 Smart Network Administrator   3 401 22.85
24
31
288 Prime or Not   64 3993 18.43
22
21
290 Polynomial Equations   52 19.51
291 Cube Root   2 240 16.57
27
17
292 Alibaba   1 153 22.32
293 Officers on the Beat   10 20.96
296 Teamwork is Crucial   66 30.77
297 Aggressive cows   970 27646 35.67
16
23

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