list of classical problems


ID NAME QUALITY USERS ACC % DIFFICULTY C I
204 Sleepwalker   82 29.10
205 Icerink   6 11.27
206 Bitmap   166 6451 26.75
15
16
207 Three-coloring of binary trees   13 778 35.70
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   29 909 27.96
24
28
215 Panic in the Plazas   77 19.35
217 Soldiers on Parade   118 28.45
220 Relevant Phrases of Annihilation   496 34.06
224 Vonny and her dominos   3 516 51.53
6
6
226 Jewelry and Fashion   1 17 15.03
34
50
227 Ordering the Soldiers   15 1247 34.05
18
22
228 Shamans   128 20.67
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   16 788 30.52
28
22
236 Converting number formats   142 43.57
237 Sums in a Triangle   -4 3341 41.99
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   8 1150 45.37
19
23
245 Square Root   4 448 15.88
34
13
247 Chocolate   54 3135 48.45
9
18
260 Containers   2 261 45.72
23
17
261 Triangle Partitioning   192 59.31
262 Connections   1 95 27.26
34
34
263 Period   32 1885 43.83
11
19
264 Corporative Network   11 470 26.55
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 1047 39.65
19
21
278 Bicycle   53 14.43
279 Interesting number   18 643 23.52
21
25
280 Lifts   42 18.94
283 Naptime   146 37.18
286 Selfish Cities   1 635 40.47
34
34
287 Smart Network Administrator   3 382 26.40
24
31
288 Prime or Not   29 2741 18.84
24
23
290 Polynomial Equations   55 21.35
291 Cube Root   1 224 16.65
26
13
292 Alibaba   149 22.50
293 Officers on the Beat   8 7.81
296 Teamwork is Crucial   66 30.77
297 Aggressive cows   561 12783 38.84
16
22

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