list of classical problems


ID NAME QUALITY USERS ACC % DIFFICULTY C I
204 Sleepwalker   82 29.10
205 Icerink   6 11.59
206 Bitmap   151 6141 26.41
15
17
207 Three-coloring of binary trees   11 753 35.50
19
15
208 Store-keeper   2 93 14.93
34
34
209 The Map   213 43.06
210 The Altars   42 14.29
211 Primitivus recurencis   192 26.58
212 Water among Cubes   24 868 27.65
26
30
215 Panic in the Plazas   77 19.35
217 Soldiers on Parade   118 28.65
220 Relevant Phrases of Annihilation   479 34.05
224 Vonny and her dominos   2 495 52.22
1
1
226 Jewelry and Fashion   1 17 15.13
34
50
227 Ordering the Soldiers   13 1203 33.80
19
22
228 Shamans   127 20.63
229 Sorting is easy   114 25.50
231 The Zebra Crossing   1 0.29
234 Getting Rid of the Holidays (Act I)   94 14.09
235 Very Fast Multiplication   13 697 30.03
29
23
236 Converting number formats   141 43.42
237 Sums in a Triangle   1 3286 41.72
22
8
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   8 1127 45.81
19
23
245 Square Root   4 445 15.99
34
13
247 Chocolate   49 3035 48.29
9
17
260 Containers   2 260 45.65
23
17
261 Triangle Partitioning   191 59.23
262 Connections   1 94 27.17
34
34
263 Period   31 1763 43.92
11
19
264 Corporative Network   10 459 26.25
19
21
272 Cave Exploration   1 36 16.48
274 Johnny and the Watermelon Plantation   207 24.40
275 The Water Ringroad   2 12.12
277 City Game   8 1032 39.37
19
21
278 Bicycle   53 14.43
279 Interesting number   15 608 22.94
23
27
280 Lifts   42 18.94
283 Naptime   136 36.59
286 Selfish Cities   1 620 40.39
34
34
287 Smart Network Administrator   2 373 25.89
28
34
288 Prime or Not   28 2644 18.84
23
23
290 Polynomial Equations   50 20.82
291 Cube Root   213 16.53
23
12
292 Alibaba   148 22.51
293 Officers on the Beat   8 7.81
296 Teamwork is Crucial   66 30.77
297 Aggressive cows   468 10790 39.57
16
22

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