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list of classical problems


ID NAME QUALITY USERS ACC % DIFFICULTY C I
41 Play on Words   43 3271 19.49
21
24
2412 Arranging Amplifiers   18 3254 27.32
7
16
7150 Palindrome 2000   57 3252 27.41
14
14
11354 Amusing numbers   53 3252 59.81
13
15
15555 Check the coprimeness   23 3251 50.25
3
5
3273 Order statistic set   160 3245 26.26
22
20
5450 Tiles of Tetris, Not!   15 3191 36.00
4
5
3883 LATGACH3   55 3185 56.54
10
20
381 106 miles to Chicago   50 3181 36.54
15
14
7757 Flowers Flourish from France   12 3167 53.01
7
2
11516 VALIDATE THE MAZE   64 3133 32.13
11
8
96 Shopping   46 3077 44.14
15
11
8132 Street Trees   33 3077 46.96
6
11
100 Tower of Babylon   45 3073 50.45
19
21
372 The Benefactor   48 3061 35.42
12
13
739 The Moronic Cowmpouter   19 3055 50.63
11
15
6 Simple Arithmetics   12 3044 12.07
30
9
8952 Catapult that ball   33 3037 26.18
12
12
1418 The Cats and the Mouse   55 2974 33.70
10
12
1002 Uncle Jack   13 2966 39.66
9
8
263 Period   55 2948 39.76
12
17
4564 Chop Ahoy! Revisited!   55 2946 50.87
12
14
4110 Fast Maximum Flow   48 2934 34.26
25
22
9756 Alaska   24 2933 35.84
5
3
1840 Printer Queue   26 2909 47.77
14
9
3871 GCD Extreme   81 2893 29.69
19
26
6818 Capital City   93 2855 39.28
20
20
11404 Save Thy Toys   70 2815 30.16
12
15
18150 SHAKTIMAN AND KILWISH   25 2812 63.63
3
9
43 Copying Books   45 2801 25.64
19
19
2916 Can you answer these queries V   51 2787 26.55
23
23
17110 Black Widow Rings   15 2720 52.11
3
3
4177 Herding   57 2715 35.23
14
15
3878 Rectangles Perimeter   58 2695 49.83
12
14
22 Triangle From Centroid   10 2685 45.77
8
20
106 Binary Stirling Numbers   3 2672 36.87
4
17
8238 N-Factorful   70 2656 26.52
17
16
3638 Word Counting   7 2637 21.05
10
6
1744 Evaluate the polynomial   19 2635 48.72
5
7
17761 Gopu and Digits Divisibility   17 2630 42.92
4
4
4031 Mass of Molecule   29 2601 48.11
12
9
94 Numeral System of the Maya   4 2585 40.50
10
6
21326 Akbar , The great   63 2583 15.90
21
18
10537 Edit Distance Again   22 2540 42.16
4
6
14329 Magic of the locker   19 2539 19.23
4
13
10628 Count on a tree   63 2501 17.30
32
31
4103 Extend to Palindrome   43 2484 30.03
16
17
4557 Musical Chairs   23 2478 46.70
9
19
4164 A conjecture of Paul ErdÅ‘s   24 2461 43.89
16
15
1167 Move To Invert   13 2453 31.78
8
16

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