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list of classical problems


ID NAME QUALITY USERS ACC % DIFFICULTY C I
372 The Benefactor   48 3052 35.43
12
13
96 Shopping   46 3061 44.12
15
11
100 Tower of Babylon   44 3065 50.46
19
21
8132 Street Trees   33 3074 46.94
6
11
11516 VALIDATE THE MAZE   64 3102 32.12
11
8
10707 Count on a tree II   67 3131 19.16
31
30
7757 Flowers Flourish from France   12 3158 53.04
7
2
381 106 miles to Chicago   50 3169 36.54
15
14
5450 Tiles of Tetris, Not!   15 3176 35.97
4
5
3273 Order statistic set   159 3177 26.12
22
20
3883 LATGACH3   55 3178 56.51
10
20
7150 Palindrome 2000   57 3225 27.31
14
14
41 Play on Words   42 3235 19.39
21
24
2412 Arranging Amplifiers   18 3241 27.35
7
16
15555 Check the coprimeness   23 3244 50.21
3
5
11354 Amusing numbers   53 3245 59.86
13
15
1811 Longest Common Substring   34 3247 21.80
20
18
1161 Tic-Tac-Toe ( I )   20 3307 22.86
12
10
13753 Amazing Prime Sequence   61 3321 29.83
11
12
9199 Circular Track   30 3340 40.27
7
14
17247 Digit Sum   49 3345 36.67
18
22
130 Rent your airplane and make money   88 3350 28.60
18
17
10500 Haybale stacking   22 3381 33.86
10
14
11772 Negative Score   67 3406 34.23
10
11
48 Glass Beads   29 3413 37.89
15
18
154 Sweet and Sour Rock   80 3420 51.26
14
17
1029 Matrix Summation   53 3458 20.01
15
18
10283 ALL IZZ WELL   69 3462 31.34
17
14
5917 Factorial length   11 3464 34.51
5
17
4942 Integer Factorization (15 digits)   45 3484 32.35
11
11
6694 D - Playing with Marbles   18 3494 66.68
3
5
16 Sphere in a tetrahedron   12 3508 56.02
11
16
3934 Recaman’s Sequence   25 3529 53.85
9
6
6294 Yodaness Level   74 3541 49.24
15
16
2149 Biased Standings   21 3562 33.39
5
5
4343 Empty Boxes   26 3562 66.00
2
13
237 Sums in a Triangle   -13 3578 42.39
28
10
29 Hash it!   14 3596 24.13
14
8
5295 Adjacent Bit Counts   86 3641 64.91
14
18
7185 Bye Bye Cakes   17 3660 38.63
8
7
5971 LCM Sum   81 3698 25.88
20
29
339 Recursive Sequence   76 3703 50.27
20
17
7299 Multiples of 3   120 3703 23.44
20
17
5976 Traversing Grid   30 3710 58.49
6
10
8611 Non-Decreasing Digits   71 3719 54.78
7
11
2416 Distinct Subsequences   94 3723 36.28
12
22
12448 How Many Games?   53 3736 22.37
14
12
705 New Distinct Substrings   41 3745 26.41
26
24
30 Bytelandian Blingors Network   54 3749 39.16
14
10
1710 Two Ends   115 3768 41.98
18
17

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