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list of classical problems


ID NAME QUALITY USERS ACC % DIFFICULTY C I
1002 Uncle Jack   13 2970 39.60
9
8
1840 Printer Queue   26 2995 48.08
14
9
1418 The Cats and the Mouse   55 3001 33.76
10
12
4110 Fast Maximum Flow   48 3057 34.29
25
22
263 Period   57 3059 40.06
12
17
739 The Moronic Cowmpouter   19 3062 50.64
11
15
6 Simple Arithmetics   12 3078 11.99
30
9
8132 Street Trees   33 3081 47.00
6
11
372 The Benefactor   49 3099 35.38
12
13
3871 GCD Extreme   82 3099 29.42
19
26
96 Shopping   46 3100 44.19
15
11
100 Tower of Babylon   45 3108 50.62
19
21
7757 Flowers Flourish from France   12 3175 53.09
7
2
11516 VALIDATE THE MAZE   64 3182 32.23
11
8
3883 LATGACH3   55 3203 56.54
10
20
5450 Tiles of Tetris, Not!   15 3205 36.04
4
5
8952 Catapult that ball   34 3207 26.33
12
12
381 106 miles to Chicago   50 3221 36.51
15
14
11354 Amusing numbers   53 3254 59.78
13
15
15555 Check the coprimeness   23 3263 50.32
3
5
2412 Arranging Amplifiers   18 3282 27.22
7
16
7150 Palindrome 2000   57 3302 27.63
14
14
41 Play on Words   43 3311 19.60
21
24
9199 Circular Track   30 3351 40.29
7
14
13753 Amazing Prime Sequence   62 3362 29.93
10
12
1161 Tic-Tac-Toe ( I )   20 3383 22.85
12
11
130 Rent your airplane and make money   88 3387 28.64
18
17
3273 Order statistic set   160 3444 26.90
22
20
154 Sweet and Sour Rock   80 3449 51.16
14
17
11772 Negative Score   67 3451 34.17
10
11
48 Glass Beads   29 3473 38.07
15
18
5917 Factorial length   11 3478 34.57
5
17
10283 ALL IZZ WELL   70 3493 31.36
17
14
6694 D - Playing with Marbles   18 3504 66.68
3
5
1811 Longest Common Substring   37 3529 22.38
20
19
3934 Recaman’s Sequence   25 3536 53.87
9
6
10707 Count on a tree II   70 3548 19.61
31
30
16 Sphere in a tetrahedron   12 3550 55.22
11
16
1029 Matrix Summation   53 3559 20.15
15
18
6294 Yodaness Level   74 3574 49.30
15
16
4343 Empty Boxes   26 3582 65.99
2
13
237 Sums in a Triangle   -13 3593 42.51
28
10
29 Hash it!   14 3650 24.17
14
8
7185 Bye Bye Cakes   17 3669 38.67
8
7
2149 Biased Standings   21 3678 33.66
5
5
4942 Integer Factorization (15 digits)   45 3692 32.76
11
11
5976 Traversing Grid   30 3721 58.56
6
10
8611 Non-Decreasing Digits   71 3732 54.84
7
11
12448 How Many Games?   53 3759 22.37
14
12
5295 Adjacent Bit Counts   86 3776 63.98
14
18

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