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list of classical problems


ID NAME QUALITY USERS ACC % DIFFICULTY C I
15620 Postering   15 615 31.98
17
21
34112 The Sum of Unitary Divisors   1 61 31.96
17
45
30947 Sabbir and gifts   21 354 31.96
16
13
25785 Ecstasy   3 66 31.95
1
1
36668 Not So Blind Escape   2 7 31.94
34
42
9895 Tracking RFIDs   52 31.94
8917 How Many Plusses   7 176 31.94
11
14
23938 Save the Scofield !!   17 272 31.93
17
19
2856 Help Bob   6 273 31.92
21
23
6981 The Least Number   21 31.91
33963 Ada and Palace Game   1 18 31.91
13076 Slikar   6 222 31.91
17
10
7805 Kitchen Robot   3 88 31.90
9
9
25417 You Win!   2 29 31.90
17
17
26214 Pisano Factors   3 23 31.90
26
26
4259 Pilots   34 1652 31.89
17
20
4587 Electric Fences   -1 128 31.89
26
26
19150 Infinite Sequence   1 152 31.88
1
34
41507 GCD Product Sum   6 43 31.86
6
23
28307 Ada and Game   53 616 31.86
14
18
7758 Growing Strings   173 31.84
4429 Spelling Lists   2 178 31.84
17
34
10079 Stammering Aliens   1 142 31.84
17
17
9721 2s Complement   1 173 31.83
34
34
7099 Advanced Edit Distance   11 402 31.83
10
20
27491 Bidding Game   6 31.82
1476 Maximum Profit   7 340 31.81
20
34
32899 Mean of array   20 173 31.80
15
18
17443 Magical Bus Journey   2 57 31.80
9
9
10240 Circleland   4 710 31.77
13
17
1167 Move To Invert   13 2447 31.77
8
16
17150 Palin Square   6 113 31.76
21
30
9030 Bob and his towers   38 31.76
9434 New Horizons   11 31.75
7760 Kids’ Wishes   1 92 31.74
34
1
5271 A Coin Game   4 545 31.74
21
30
9070 Lightning Conductor   3 541 31.74
9
17
8843 Complete the Set   1 50 31.73
1
17
4100 Sum of Vectors   -1 101 31.71
50
34
3895 Matrix Game   25 31.71
2053 Key Task   37 1179 31.70
24
22
2139 Gossipers   3 591 31.70
21
26
36861 Yet Another Perfect Square Equation   8 57 31.70
10
20
18469 Office Mates   1 51 31.70
17
34
6256 Inversion Count   532 17161 31.69
16
18
5699 The last digit re-visited   39 7448 31.69
9
9
34012 Adrita and Her Bike Ride   8 141 31.68
10
8
9032 Cube Free Numbers   65 4127 31.66
12
11
6292 Shmoogle Wave   16 31.65
9063 Shuffling cards   17 31.65

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