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list of classical problems


ID NAME QUALITY USERS ACC % DIFFICULTY C I
8106 Normalized Form   6 274 36.52
17
17
8222 Substrings   6 1216 29.20
23
26
8284 Weighted Sum   6 508 17.80
9
13
8349 BRODOVI   6 607 43.97
21
17
8372 Triple Sums   6 337 26.09
21
27
8505 Nacci Fear   6 316 40.27
24
21
8598 Traverse through the board   6 647 54.31
10
11
8747 Substrings II   6 144 10.47
34
30
9569 Sum of Pairwise Products   6 826 31.36
4
12
9842 Yet Another Fancy Game   6 236 22.91
7
32
9964 Fibonacci vs Polynomial   6 126 40.50
24
34
10050 Power Tower City   6 89 71.46
24
28
10186 Divisor Digits   6 1279 30.91
8
12
10334 SOLDIERS   6 744 28.42
9
4
10415 Dracula   6 140 21.71
20
22
10596 Monkey and apples   6 162 17.43
30
17
10730 Michel and the championship   6 115 11.26
9
9
11695 A Summatory (HARD)   6 94 30.22
31
29
11895 DONALDO   6 504 24.79
10
13
11933 DIAGONAL   6 943 24.26
12
12
12244 Natalia Has Another Problem   6 108 46.20
17
14
13041 The Black Riders   6 186 40.37
17
34
13046 The Glittering Caves of Aglarond   6 911 34.83
5
12
13076 Slikar   6 220 31.82
17
10
13363 WIND VANE   6 391 31.39
17
17
13881 FUN WITH LETTERS   6 231 29.42
13
26
15149 play with prime numbers (III)(hard )   6 28 50.53
34
28
15190 MAXIMUM RARITY   6 84 33.23
28
34
15728 The Sierpinski Fractal   6 109 27.31
13
9
16046 Help Professor   6 396 47.25
8
15
16063 Hackers   6 57 23.48
48
48
16244 Kusac   6 400 35.90
14
21
16778 Sir and the Guitar   6 146 54.55
4
5
17150 Palin Square   6 109 31.53
21
30
18243 Maggu and Strings   6 593 33.11
4
1
18457 Very Friends   6 241 27.70
11
30
18465 A Subtle Surf   6 199 43.27
14
11
19216 Super Mario Revisited   6 21 7.23
20
23
19795 Psycho34 (easy)   6 54 22.20
30
13
20173 Counting Divisors (square)   6 417 21.58
26
36
20174 Counting Divisors (cube)   6 345 34.38
17
41
20985 Archipelago   6 103 62.50
11
4
20986 Hypertubes   6 42 42.71
20
23
21092 DRAW TABLE   6 44 54.07
17
1
21284 Can You Make It Empty 3   6 93 31.36
15
20
21643 Unhappy Numbers   6 45 36.75
31
31
21692 CURD PRODUCERS   6 521 42.01
15
11
23875 Another Version of Inversion   6 61 30.74
21
21
25024 Nth Prime   6 84 16.99
34
39
25393 Do It Wrong, Get It Right   6 54 36.82
17
17

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