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list of classical problems


ID NAME QUALITY USERS ACC % DIFFICULTY C I
372 The Benefactor   48 3054 35.44
12
13
96 Shopping   46 3066 44.10
15
11
100 Tower of Babylon   44 3067 50.46
19
21
8132 Street Trees   33 3075 46.95
6
11
11516 VALIDATE THE MAZE   64 3111 32.15
11
8
7757 Flowers Flourish from France   12 3160 52.99
7
2
381 106 miles to Chicago   50 3172 36.53
15
14
10707 Count on a tree II   67 3173 19.24
31
30
3883 LATGACH3   55 3180 56.50
10
20
5450 Tiles of Tetris, Not!   15 3181 35.98
4
5
3273 Order statistic set   159 3198 26.15
22
20
7150 Palindrome 2000   57 3232 27.35
14
14
11354 Amusing numbers   53 3245 59.84
13
15
15555 Check the coprimeness   23 3245 50.21
3
5
2412 Arranging Amplifiers   18 3246 27.32
7
16
41 Play on Words   42 3254 19.43
21
24
1811 Longest Common Substring   34 3265 21.83
20
18
1161 Tic-Tac-Toe ( I )   20 3317 22.91
12
10
13753 Amazing Prime Sequence   61 3335 29.84
11
12
9199 Circular Track   30 3343 40.27
7
14
130 Rent your airplane and make money   88 3352 28.60
18
17
17247 Digit Sum   49 3392 36.81
18
22
11772 Negative Score   67 3410 34.21
10
11
48 Glass Beads   29 3417 37.91
15
18
154 Sweet and Sour Rock   80 3420 51.25
14
17
10500 Haybale stacking   22 3443 33.88
10
14
10283 ALL IZZ WELL   70 3463 31.34
17
14
5917 Factorial length   11 3465 34.51
5
17
1029 Matrix Summation   53 3477 20.04
15
18
6694 D - Playing with Marbles   18 3496 66.68
3
5
4942 Integer Factorization (15 digits)   45 3500 32.38
11
11
16 Sphere in a tetrahedron   12 3511 55.98
11
16
3934 Recaman’s Sequence   25 3529 53.85
9
6
6294 Yodaness Level   74 3548 49.29
15
16
4343 Empty Boxes   26 3563 66.00
2
13
2149 Biased Standings   21 3571 33.43
5
5
237 Sums in a Triangle   -13 3579 42.39
28
10
29 Hash it!   14 3605 24.12
14
8
5295 Adjacent Bit Counts   86 3649 64.85
14
18
7185 Bye Bye Cakes   17 3660 38.63
8
7
5976 Traversing Grid   30 3711 58.50
6
10
7299 Multiples of 3   121 3711 23.46
20
17
339 Recursive Sequence   76 3720 50.09
20
17
8611 Non-Decreasing Digits   71 3720 54.78
7
11
2416 Distinct Subsequences   94 3726 36.29
12
22
5971 LCM Sum   81 3739 25.97
20
29
12448 How Many Games?   53 3739 22.36
14
12
30 Bytelandian Blingors Network   54 3750 39.17
14
10
705 New Distinct Substrings   41 3755 26.43
26
24
1710 Two Ends   115 3769 41.97
18
17

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