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list of classical problems


ID NAME QUALITY USERS ACC % DIFFICULTY C I
303 The Unstable Cube   1 51 28.10
17
1
309 The Room Pattern   1 48 14.99
34
17
336 Exchange Operations   1 90 20.00
1
17
349 Around the world   1 91 25.66
17
17
350 Landscaping   1 99 30.08
362 Ignore the Garbage   1 425 43.75
1
17
366 Farmer   1 271 17.10
1
1
387 Travelling tours   1 312 53.92
30
34
389 Use of Hospital Facilities   1 53 15.47
34
26
390 Billiard   1 903 54.53
11
21
399 Team Rankings   1 391 53.58
17
9
409 DEL Command   1 79 17.60
17
17
410 Variable Radix Huffman Encoding   1 180 19.26
1
1
414 Equatorial Bonfire   1 79 28.90
34
17
419 Transposing is Fun   1 307 36.85
17
26
479 Permutation generator   1 135 28.24
21
17
515 Collatz   1 450 43.13
1
5
518 Zig-Zag Permutation   1 51 31.25
26
26
684 Another Assignment Problem   1 107 12.48
34
1
695 Unite Fast   1 138 27.81
9
9
696 Truth or not   1 275 22.00
1
1
698 Plane Hopping   1 289 25.31
17
699 Huge Knap Sack   1 141 25.06
9
9
733 Mountain Walking   1 765 25.67
34
26
735 Minimum Diameter Spanning Tree   1 199 34.41
17
30
738 Another Counting Problem   1 235 40.65
1
1
912 Submatrix of submatrix   1 174 27.01
34
17
996 Continuous Fractions   1 279 37.54
9
9
1001 Babylonian Roulette   1 666 50.46
13
13
1420 Geometry and a Square   1 276 34.08
9
17
1441 The Clever Typist   1 34 8.28
17
34
1451 01 Sequence   1 99 28.63
9
26
1458 Help Blue Mary Please! (Act II)   1 85 17.83
17
1
1471 A Game of Pearls   1 45 30.86
17
9
1479 The GbAaY Kingdom   1 136 19.18
30
38
1484 Search in XML   1 20 3.07
17
17
1487 Query on a tree III   1 588 18.63
17
12
1526 Ranklist Sorting   1 28 13.10
17
34
1644 Trees   1 39 14.03
34
34
1675 Fusion Cube   1 87 50.77
1
23
1676 Text Generator   1 260 21.88
17
28
1687 Logic II   1 36 17.65
34
34
1695 Grandpa’s Rubik Cube   1 111 60.94
1698 Polygonal Line Search   1 164 62.75
9
9
1731 Counting Triangles III   1 266 33.78
1775 Boolean Logic   1 105 23.35
17
17
1784 IOICamp Sequence   1 325 12.80
1
17
1789 Huffman´s Greed   1 91 46.67
17
26
1801 Drink, on Ice   1 522 42.66
9
9
1803 Fold   1 60 43.21
1
34

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