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list of classical problems (unsolved)


ID NAME QUALITY USERS ACC % DIFFICULTY C I
1991 Another Continuous Fractions Problem   1 84 19.97
34
17
2008 Dab of Backpack   17 674 23.80
21
17
2054 Gates of Logic   1 37 22.91
17
17
2055 Weird Numbers   2 346 35.99
17
17
2056 Rectangular Polygon   1 136 48.14
1
17
2125 Number Labyrinth   2 64 25.55
17
17
2131 Get Back!   1 55 40.67
17
17
2136 Candy II   2 613 46.00
17
17
2147 Root of a Linear Equation   66 8.90
34
17
2161 Pixel Shuffle   34 21.03
50
17
2172 Ballroom Lights   1 35 32.94
34
17
2173 Car Plates Competition   1 261 42.05
17
17
2179 ICPC Scoreboard   1 180 29.76
17
17
2414 Calculate The Cost   8 343 22.37
28
17
2415 Kirchhof Law   2 105 21.42
17
17
2422 Jazzy Job   2 67 32.35
9
17
2527 Flipping Burned Pancakes   3 265 52.59
17
17
2529 Model Rocket Height   1 87 54.86
1
17
2565 Another Permutation Problem   1 59 23.46
34
17
2660 Example   1 13 17.99
17
17
2714 Cow Cars   6 670 37.51
15
17
2853 Decode the Strings   5 432 39.64
15
17
2878 Knights of the Round Table   2 563 22.74
9
17
2879 The Cow Doctor   145 33.46
17
2882 The Warehouse   1 27 30.66
34
17
3006 Connect Line Segments   1 79 24.38
17
17
3023 Binary multiplication   3 229 25.04
17
17
3106 Dictionary Subsequences   3 170 18.47
17
17
3110 Palindromic Number   3 102 21.22
9
17
3308 The Bridges of San Mochti   2 68 56.25
17
17
3310 Serial Numbers   1 35 29.84
34
17
3314 Umnozak   115 30.02
42
17
3322 Doubled Numbers   2 169 49.36
17
17
3361 Cavli   1 43 43.20
17
17
3362 Setnja   2 249 21.51
9
17
3376 Parking Lot   1 143 20.40
17
17
3382 Monster Trap   1 32 24.06
34
17
3385 Yoda Goes Palindromic !   3 586 30.53
17
17
3388 Double Near Palindromes   1 456 34.21
17
17
3413 Traveling Shoemaker Problem   1 77 17.32
26
17
3459 SkyScrapers   3 375 38.37
17
17
3492 Braille Transcription   16 14.16
17
17
3591 Patting Heads   3 659 35.33
17
17
3732 Slikar   1 213 52.05
28
17
3754 MAJMUN   1 77 40.47
17
17
3831 Lubenica   1 204 42.50
17
17
3832 Kruska   4 107 46.57
17
17
3865 Reljef   3 94 39.09
26
17
3909 CALCULATE POW(2004,X) MOD 29   2 279 56.70
1
17
3915 Star Polygon or Not   1 40 54.74
17
17

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