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list of classical problems (unsolved)


ID NAME QUALITY USERS ACC % DIFFICULTY C I
9117 Faculty Dividing Powers   11 375 22.55
17
17
9137 Pyramid Sums   96 35.60
34
17
9219 Nikhil Problem   2 225 45.88
17
17
9242 B Beware, the end of the world   1 32 24.88
17
17
9255 Publication   3 42 60.75
23
17
9260 Perfect Road   16 20.37
17
17
9334 Point in tetrahedron   2 141 57.59
9
17
9386 Re-Arrange II   9 278 44.33
21
17
9430 The game of 31   165 39.30
13
17
9505 Distinct Subtrees   1 21 25.27
17
17
9510 Ads Proposal   1 72 26.14
17
17
9512 Bombing   89 23.46
17
17
9527 Department   11 7.37
34
17
9532 Transportation   1 22 28.57
17
17
9636 A Canvas Building   71 18.04
17
17
9643 He is Lazy   2 157 41.73
17
17
9685 Zombie’s Treasure Chest   2 84 13.66
9
17
9686 Yummy Triangular Pizza   485 65.64
26
17
9817 Shortcut   54 25.94
17
17
9832 Matrix inverse   2 88 59.49
12
17
9858 Štef and Barica   2 77 37.69
34
17
9891 Please, go first   221 54.66
26
17
9894 Tichu   2 80 38.63
26
17
9935 Break the Chocolate   16 1659 34.62
4
17
9938 Disney Fastpass   1 37 25.32
17
17
9939 Eliminate the Conflict   1 50 39.59
17
17
9943 Isabella Message   1 69 24.22
17
17
9973 Problem Set Score   4 918 39.55
12
17
10070 Trick or Treat   2 253 67.00
12
17
10079 Stammering Aliens   1 167 32.18
17
17
10089 Locks and Keys   1 18 33.73
34
17
10096 Lights (Extreme)   56 29.80
17
17
10110 Guess the Numbers   124 44.36
17
17
10128 Treasures and Vikings   -1 82 25.06
17
17
10141 STRAZA   49 40.13
34
17
10229 Save the Students   1 183 26.08
17
17
10240 Circleland   4 713 31.90
13
17
10355 Coin Tosses   2 398 34.06
1
17
10420 Hardware upgrade   1 55 30.04
34
17
10422 Rubiks cube   2 58 44.63
17
17
10452 Caprica Cities   3 165 38.31
26
17
10460 A function over factors   1 102 32.78
1
17
10502 Video game combos   1 398 38.32
34
17
10515 K12-Combinations   5 412 28.02
5
17
10517 K12-Generating Big Numbers II   1 83 45.02
26
17
10573 Problem Offensive Strategy   1 72 23.25
17
17
10579 Desrugenstein   2 120 49.34
17
17
10596 Monkey and apples   6 164 17.07
30
17
10606 Balanced Numbers   9 652 29.20
23
17
10819 BF Vector   1 83 55.84
1
17

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