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list of classical problems


ID NAME QUALITY USERS ACC % DIFFICULTY C I
12076 Longest Common Subsequence   6 140 4.56
45
45
12244 Natalia Has Another Problem   6 113 47.19
17
14
13041 The Black Riders   6 195 40.04
17
34
13046 The Glittering Caves of Aglarond   6 917 34.89
5
12
13076 Slikar   6 232 31.89
17
10
13363 WIND VANE   6 391 31.39
17
17
13881 FUN WITH LETTERS   6 240 28.22
13
26
14935 Cactus   6 202 19.88
16
14
15149 play with prime numbers (III)(hard )   6 28 43.47
34
28
15190 MAXIMUM RARITY   6 87 34.82
28
34
15728 The Sierpinski Fractal   6 118 27.26
13
9
16046 Help Professor   6 398 47.44
8
15
16063 Hackers   6 61 21.82
48
48
16244 Kusac   6 410 36.44
14
21
16248 Clones   6 583 44.29
3
4
16778 Sir and the Guitar   6 149 54.91
4
5
16825 Divisors   6 91 17.85
20
24
17150 Palin Square   6 114 31.95
21
30
18243 Maggu and Strings   6 599 33.27
4
1
18283 Maggu and Cuteness of Strings   6 170 40.07
13
13
18457 Very Friends   6 247 27.85
11
30
18465 A Subtle Surf   6 203 43.31
14
11
19216 Super Mario Revisited   6 22 7.39
20
23
20173 Counting Divisors (square)   6 476 21.59
29
38
20985 Archipelago   6 106 62.77
11
4
21092 DRAW TABLE   6 45 53.19
17
1
21104 Jarin Loves New Task   6 46 37.71
21
21
21177 Distracted judges   6 321 44.73
13
17
21284 Can You Make It Empty 3   6 95 31.16
15
20
21692 CURD PRODUCERS   6 532 41.87
15
11
22560 Valid Path   6 65 36.04
6
8
22561 Roger and tree III   6 29 14.15
26
26
23507 Retrovirus   6 93 36.02
15
13
23742 Dolan and Nephews   6 52 37.97
31
28
25393 Do It Wrong, Get It Right   6 55 36.29
17
17
25782 Fury Road   6 93 44.77
17
13
25862 Divisor Game   6 53 18.05
17
17
26305 Lights On!   6 323 26.13
17
24
26385 Harish and his rooks puzzle   6 226 32.03
4
1
26450 Palindromic Primes (Hard)   6 40 25.33
34
30
26685 I Love Kd-Trees II   6 132 35.71
21
23
26743 Wonowon   6 144 66.89
11
11
27196 Study Room   6 439 52.30
6
8
27218 Segmentation   6 35 39.87
23
28
27313 Number of Binary Trees   6 78 45.49
17
26
27375 Garden of Mangu   6 86 46.02
19
19
27380 Painting Hat   6 254 47.40
11
12
27942 Product it again   6 148 32.98
24
20
28079 Maximum Child Sum   6 104 22.97
30
30
28302 Ada and Plus   6 164 44.04
13
13

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