list of classical problems


ID NAME QUALITY USERS ACC % DIFFICULTY C I
68 Expression   163 30.09
1
34
92 Cutting off Squares   -1 254 42.63
1
1
118 Rhombs   105 47.21
1
34
131 Square dance   322 50.21
1
1
180 How to pack containers   1 100 36.60
1
1
184 Automatic Teller Machines   1 204 33.73
1
1
185 Chase   2 216 24.63
1
26
201 The Game of Polygons   1 250 39.36
1
17
204 Sleepwalker   90 26.70
1
1
209 The Map   238 39.89
1
1
211 Primitivus recurencis   248 27.05
1
17
236 Converting number formats   149 42.42
1
1
238 Getting Rid of the Holidays (Act II)   81 15.98
1
1
274 Johnny and the Watermelon Plantation   -1 213 24.34
1
1
301 Booklets   -1 184 41.28
1
1
318 Pythagorean Legacy   29 23.04
1
34
329 Calls   2 121 28.66
1
17
332 Hard Question   102 32.33
1
34
336 Exchange Operations   1 85 19.74
1
17
351 Ha-noi!   382 42.22
1
1
362 Ignore the Garbage   1 418 43.65
1
17
366 Farmer   1 265 16.94
1
1
371 Boxes   540 35.79
1
26
374 Count maximum matrices   235 20.85
1
17
382 Decorate the wall   213 35.24
1
17
392 Spin   38 24.40
1
17
396 Hit or Miss   129 44.62
1
1
410 Variable Radix Huffman Encoding   1 173 18.96
1
1
412 K-path cover   181 20.04
1
50
515 Collatz   1 444 43.47
1
5
682 Pairs of Integers   204 25.26
1
1
696 Truth or not   1 271 21.77
1
1
697 Matrix Words   94 25.33
1
1
702 Barn Expansion   152 23.28
1
17
729 Move your armies   78 20.32
1
1
738 Another Counting Problem   1 225 40.41
1
1
757 Thermal Luminescence   121 39.26
1
1
827 Trigonometric optimization   78 28.03
1
34
903 Double Vision   64 56.49
1
1
1480 Let us count 1 2 3   1 72 14.70
1
34
1675 Fusion Cube   1 79 49.18
1
26
1784 IOICamp Sequence   1 318 12.68
1
17
1876 Dragon Curves   2 174 50.12
1
17
1965 Set Cover   2 25 12.42
1
17
2009 Cryptography   1 142 4.80
1
34
2038 Rectangle Tiling   2 112 40.75
1
1
2056 Rectangular Polygon   1 134 47.94
1
17
2529 Model Rocket Height   1 80 54.27
1
17
2649 Weird sorting   1 58 26.10
1
34
3249 Typesettin   2 34 45.45
1
1

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