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list of classical problems (unsolved)


ID NAME QUALITY USERS ACC % DIFFICULTY C I
7629 Building Ports   45 12.44
14742 Building Bridges(HARD)   10 454 24.08
14
17
6168 Building Bridges   27 1665 25.98
11
17
2413 Building Beacons   42 19.84
11181 Build the Tower   2 524 41.77
26
26
26 Build the Fence   37 2267 28.13
22
17
4408 Build a Fence   38 12327 44.81
4
5
34222 Bucket Selection   5 25 15.76
21
30
25784 Bubble Sort   10 742 21.44
16
17
19142 BSTRING   4 141 33.82
17
13
8549 BST again   1 95 17.08
17
34
5152 Brute-force Algorithm EXTREME   2 103 22.25
17
28
8951 brownie   73 49.17
2852 Broken Keyboard   19 1220 31.73
14
14
2323 Broken Compass   47 13.78
8349 BRODOVI   6 620 43.77
21
17
4951 Bridges! More bridges!   1 47 16.63
1
34
10443 Bridges   2 2.82
4871 Bridge   2 161 24.59
1
34
14846 Bribe the Prisoners   10 411 32.09
19
21
39219 Brenden Politeness Filter   1 46 48.00
1
1
15736 Breaking String   18 779 37.79
17
28
37446 Breaking Math   2 7 21.51
50
50
2728 Breaking in   8 304 26.79
30
19
6499 Breaking Chocolates   1 104 18.89
17
17
14947 Breaking and Entering   2 27 36.08
26
9
9935 Break the Chocolate   16 1659 34.62
4
17
4186 Break a New RSA system   1 138 34.12
3762 Bread Tree   163 13.66
700 Branch Prediction   78 19.21
17
1
27093 Branch Assignment   29 39.58
3492 Braille Transcription   16 14.16
17
17
4202 Brackets Parade   238 45.03
4454 Brackets II   8 417 36.21
26
24
61 Brackets   178 5548 24.47
19
20
2317 Bracket Sequence   1 57 23.73
26
34
42340 Bracket Check   4 262 32.97
3
1
3576 Boy Scouts   3 145 28.31
21
30
14848 Boxlings   20 25.00
15994 Boxes of Chocolate   1 92 24.72
17
17
2000 Boxes (Hard)   2 17 2.95
26
34
371 Boxes   553 35.69
1
26
25458 Boxes   4 98 38.02
38
38
14839 Boxdropper   21 34.78
17
17
14883 Box Factory   15 33.96
6477 Bowling   3 526 28.74
8
11
7152 Boundary 2003   1 18 12.34
34
1
4453 Bouncing Balls II   227 27.98
3894 Bouncing Balls   28 31.54
31772 Boss Baby   2 13 17.09
28
17

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