list of classical problems


ID NAME QUALITY USERS ACC % DIFFICULTY C I
204 Sleepwalker   82 29.10
205 Icerink   6 11.27
206 Bitmap   171 6553 26.86
15
16
207 Three-coloring of binary trees   13 783 35.73
17
14
208 Store-keeper   2 93 14.72
34
34
209 The Map   213 42.89
210 The Altars   42 14.29
211 Primitivus recurencis   199 26.40
212 Water among Cubes   31 924 28.03
23
27
215 Panic in the Plazas   77 19.35
217 Soldiers on Parade   118 28.45
220 Relevant Phrases of Annihilation   501 34.57
224 Vonny and her dominos   3 526 51.78
6
6
226 Jewelry and Fashion   1 17 15.03
34
50
227 Ordering the Soldiers   15 1260 34.15
18
22
228 Shamans   131 20.60
229 Sorting is easy   114 25.36
231 The Zebra Crossing   1 0.29
234 Getting Rid of the Holidays (Act I)   94 14.06
235 Very Fast Multiplication   16 806 30.60
28
22
236 Converting number formats   142 43.57
237 Sums in a Triangle   -6 3352 42.02
25
9
238 Getting Rid of the Holidays (Act II)   77 15.58
239 Tour de Byteland   1 79 24.91
17
17
241 Arranging the Blocks   50 12.66
243 Stable Marriage Problem   10 1156 45.40
19
22
245 Square Root   4 448 15.90
34
13
247 Chocolate   55 3158 48.27
9
17
260 Containers   2 261 45.72
23
17
261 Triangle Partitioning   193 59.39
262 Connections   1 95 27.26
34
34
263 Period   33 1917 43.97
11
19
264 Corporative Network   12 474 26.62
19
21
272 Cave Exploration   1 36 16.48
274 Johnny and the Watermelon Plantation   207 24.00
275 The Water Ringroad   2 12.12
277 City Game   8 1050 39.64
19
21
278 Bicycle   53 14.43
279 Interesting number   19 649 23.54
21
25
280 Lifts   42 18.94
283 Naptime   148 36.72
286 Selfish Cities   1 643 40.10
34
34
287 Smart Network Administrator   3 390 26.27
24
31
288 Prime or Not   30 2776 18.90
23
22
290 Polynomial Equations   55 21.35
291 Cube Root   1 224 16.63
26
13
292 Alibaba   149 22.45
293 Officers on the Beat   8 7.81
296 Teamwork is Crucial   66 30.77
297 Aggressive cows   586 13204 38.63
16
22

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