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list of classical problems


ID NAME QUALITY USERS ACC % DIFFICULTY C I
7150 Palindrome 2000   56 3176 27.13
15
14
5450 Tiles of Tetris, Not!   15 3149 35.94
4
5
3883 LATGACH3   55 3147 56.67
10
20
381 106 miles to Chicago   50 3142 36.56
15
14
7757 Flowers Flourish from France   12 3142 52.98
7
2
3273 Order statistic set   157 3101 25.77
22
20
10500 Haybale stacking   22 3098 33.90
10
14
1811 Longest Common Substring   33 3076 21.32
20
18
8132 Street Trees   33 3071 46.96
6
11
100 Tower of Babylon   44 3054 50.53
19
21
11516 VALIDATE THE MAZE   63 3046 32.06
11
8
739 The Moronic Cowmpouter   19 3039 50.57
11
15
96 Shopping   46 3038 44.19
15
11
372 The Benefactor   48 3036 35.51
12
13
17247 Digit Sum   48 3012 36.35
18
21
6 Simple Arithmetics   11 3006 12.35
30
9
1418 The Cats and the Mouse   54 2960 33.71
10
12
1002 Uncle Jack   13 2958 39.66
9
8
4564 Chop Ahoy! Revisited!   55 2940 50.88
12
14
9756 Alaska   24 2917 35.81
5
3
10707 Count on a tree II   62 2856 18.81
31
31
1840 Printer Queue   26 2841 47.42
14
9
11404 Save Thy Toys   70 2809 30.18
12
15
4110 Fast Maximum Flow   47 2800 34.37
25
22
18150 SHAKTIMAN AND KILWISH   25 2780 63.87
3
9
8952 Catapult that ball   36 2775 26.27
12
12
263 Period   55 2771 39.31
12
17
43 Copying Books   45 2724 25.53
19
19
17110 Black Widow Rings   15 2712 52.14
3
3
6818 Capital City   92 2704 38.94
19
20
4177 Herding   56 2698 35.21
14
15
3878 Rectangles Perimeter   58 2689 49.85
12
14
22 Triangle From Centroid   9 2633 46.65
9
22
1744 Evaluate the polynomial   19 2632 48.69
5
7
17761 Gopu and Digits Divisibility   17 2621 42.90
4
4
3638 Word Counting   7 2620 21.04
10
6
106 Binary Stirling Numbers   3 2619 36.56
4
17
94 Numeral System of the Maya   4 2574 40.50
10
6
4031 Mass of Molecule   29 2562 48.13
12
9
2916 Can you answer these queries V   51 2553 25.93
23
23
10537 Edit Distance Again   22 2534 42.08
4
6
3871 GCD Extreme   78 2524 29.52
18
26
4557 Musical Chairs   23 2472 46.67
9
19
8238 N-Factorful   67 2472 26.41
17
16
1167 Move To Invert   13 2444 31.76
8
16
14329 Magic of the locker   19 2410 19.28
4
13
6772 Happy Coins   14 2407 55.51
3
10
21326 Akbar , The great   63 2390 15.71
21
18
2530 Tiling a Grid With Dominoes   57 2386 64.99
15
23
8756 Shake Shake Shaky   51 2365 23.83
12
14

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