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list of classical problems


ID NAME QUALITY USERS ACC % DIFFICULTY C I
9734 Hacking the random number generator   61 5835 38.94
8
6
13753 Amazing Prime Sequence   61 3337 29.85
11
12
18155 abs(a-b) I   61 4577 47.96
5
9
22776 Balika Vadhu and Alok Nath   61 1191 33.42
14
18
1837 Pie   60 3976 30.34
18
15
2530 Tiling a Grid With Dominoes   60 2411 64.84
16
24
2713 Can you answer these queries IV   60 4069 17.45
21
21
2906 GCD2   60 6819 36.47
12
11
3921 The Great Ball   60 3935 39.12
7
11
12933 n-divisors   60 2312 19.31
18
17
15965 PLAY WITH MATH   60 6873 46.45
4
5
18284 Petya and the Road Repairs   59 878 23.98
19
22
28305 Ada and Indexing   59 2037 41.37
15
15
348 Expedition   58 2239 20.62
20
20
3693 Maximum Sum   58 6503 42.28
19
18
3878 Rectangles Perimeter   58 2694 49.81
12
14
7208 Black or White   58 1472 42.27
16
19
10514 K12 - Building Construction   58 1964 25.92
12
16
10798 Wachovia Bank   58 3969 46.82
7
9
4177 Herding   57 2715 35.24
14
15
7150 Palindrome 2000   57 3236 27.35
14
14
8061 Christmas Play   57 7757 48.27
6
4
22393 KATHTHI   57 1964 32.70
16
17
30738 Ada and Coins   57 779 30.96
14
22
902 Hangover   56 17840 62.81
3
3
263 Period   55 2928 39.78
12
17
1418 The Cats and the Mouse   55 2972 33.70
10
12
3883 LATGACH3   55 3182 56.52
10
20
4452 Simple Arithmetics II   55 7461 42.39
11
5
4564 Chop Ahoy! Revisited!   55 2943 50.84
12
14
10810 Its a Murder!   55 2388 22.07
16
17
30 Bytelandian Blingors Network   54 3754 39.18
14
10
2148 Candy III   54 20443 25.32
9
5
11840 Sum of Squares with Segment Tree   54 2044 50.86
23
19
28307 Ada and Game   54 619 31.73
14
19
27 Sorting Bank Accounts   53 8843 40.31
11
6
364 Pocket Money   53 2241 38.54
15
18
1029 Matrix Summation   53 3485 20.06
15
18
2815 Increasing Subsequences   53 2160 28.11
15
22
11354 Amusing numbers   53 3245 59.84
13
15
12448 How Many Games?   53 3740 22.36
14
12
28308 Ada and Spring Cleaning   53 1439 19.78
18
17
212 Water among Cubes   52 1535 26.04
25
27
1703 ACM (ACronymMaker)   52 1076 29.72
26
21
7974 What’s Next   52 43764 34.77
2
2
8785 Cut the Silver Bar   52 5329 54.40
5
16
13769 Roommate Agreement   52 1473 31.22
11
16
15436 Slick   52 2162 32.89
9
9
2916 Can you answer these queries V   51 2727 26.36
23
23
5832 AND Rounds   51 1695 24.83
17
20

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