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list of classical problems (unsolved)


ID NAME QUALITY USERS ACC % DIFFICULTY C I
367 Empodia   2 165 27.51
17
26
37402 The Attack Titan   5 138 27.50
8
6
35381 VALENTINE   2 42 27.50
11
14
33795 Taskin and apple tree   8 322 27.49
6
6
5154 Cryptography Reloaded (Act II)   36 27.49
13631 BATMAN2   19 603 27.49
17
23
14181 LIFE IS A RACE   12 27.47
9893 Smoking gun   41 27.46
8177 Beautiful numbers EXTREME   -2 291 27.46
26
9
6052 PBCGAME   85 27.45
9123 Security Zone   39 27.45
32745 Ada and Harvest   20 294 27.42
22
21
394 Alphacode   580 22983 27.42
15
15
26349 TRAVELLING DILEMMA   2 45 27.42
17
17
3679 Moo University - Emergency Pizza Order   -1 37 27.40
3980 Point Visible   1 48 27.40
34
50
112 Horizontally Visible Segments   1 162 27.39
17
34
4036 Cuckoo Hashing   3 152 27.39
17
6
32468 Frog Party   4 69 27.38
21
21
3195 Doors and Penguins   9 244 27.35
19
16
481 Roots of polynomial   46 27.34
17
34
3973 0 0 Pairs   4 806 27.34
15
15
9444 Block Drop   1 25 27.33
34
34
8372 Triple Sums   6 413 27.33
21
27
7866 Regular expressions (Hard)   1 140 27.33
28
23
11267 Arnook Defensive Line   1 45 27.33
34
34
827 Trigonometric optimization   84 27.33
1
34
11575 A Famous Equation   2 81 27.32
34
34
16300 Playing with isosceles triangle   5 322 27.32
13
21
6035 Dinner   4 164 27.30
9
34
16180 Ratar   83 27.27
17
17
34183 Tower of Hanoi Movement - Hard   3 96 27.27
9
1
30500 THE HONEYCOMB MAZE   16 653 27.24
17
15
6470 Finding the Kth Prime   48 7870 27.24
19
14
13118 The Rook and The Rookette   37 27.23
17
17
28461 Efficient managing   3 48 27.22
17
26
2412 Arranging Amplifiers   18 3283 27.22
7
16
19334 Khaolin Temple   2 24 27.22
26
26
33999 Ada and Primal Fear   2 31 27.22
26
26
15766 Enjoy Sum with Operations   15 377 27.21
20
26
7683 Powered and Squared   8 717 27.21
19
16
20863 Largest Submatrix   82 27.21
18660 Product of factorials (easy)   4 115 27.20
17
17
14334 Evil Overlord Cypher   1 67 27.18
9
17
4390 Cards shuffing   2 123 27.18
26
21
16033 Tip Top Game   17 1769 27.18
2
7
30760 Ada and Travelling Salesman   18 188 27.13
23
29
1448 3D Cover   3 100 27.12
28
17
1447 A Game of Toy Bricks   42 27.12
1
1
9887 Binomial coefficients   1 170 27.10
34
34

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