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list of classical problems


ID NAME QUALITY USERS ACC % DIFFICULTY C I
3970 Convert to Decimal Base System   53 38.60
17
17
4141 Euler Totient Function   145 11615 38.60
8
11
7676 Sum of Digits   104 4821 38.58
17
20
10366 Play with Dates   9 1416 38.54
16
6
364 Pocket Money   53 2240 38.53
15
18
30116 Can you draw it or not?   16 194 38.53
5
9
27320 Card Game   13 354 38.52
9
14
24999 1807   10 521 38.50
15
18
1700 Traveling by Stagecoach   9 456 38.48
19
17
147 Tautology   2 729 38.47
9
9
1472 Tom and Jerry   61 38.46
5830 Alternating Permutations   1 57 38.46
34
34
34705 Secret Recipe   8 148 38.46
11
10
32952 Ada and Football   3 207 38.43
45
39
3893 Space settlement   64 38.42
9894 Tichu   2 78 38.41
26
17
17819 XYI   4 354 38.40
17
9
29431 Counting WOW-Substrings   10 126 38.39
10
19
22329 Chicks   8 94 38.39
19
19
12721 Pell (Mid pelling)   1 37 38.38
20196 The Magical Bag   3 198 38.36
34
34
3380 Tourist   28 1076 38.36
19
31
15551 Do You Even Lift   2 18 38.35
23
28
10452 Caprica Cities   3 161 38.35
26
17
3644 Winning Strategy   1 35 38.33
17
50
11407 Tied Down   19 38.33
899 Ws Cipher   6 837 38.33
14
15
8995 CANDY   9 1334 38.32
8
6
1681 Cylinder   2 920 38.32
9
26
15995 Self Numbers   16 901 38.30
12
6
7777 National Treasure   32 38.30
28304 Ada and Teams   24 761 38.25
15
15
4586 Texas Trip   67 38.25
135 Men at work   1 261 38.24
24
26
32 A Needle in the Haystack   194 11035 38.24
15
14
26132 Sum the Decimal-part II   3 50 38.24
17
9
2171 Ambiguous Codes   1 80 38.22
5673 Fractions on Tree ( reloaded !)   2 244 38.22
26
34
26744 Coverage   21 38.20
3933 Minimum Permutation   6 183 38.20
12
17
20050 Love Story 2   1 86 38.17
9
9
19416 Potions Class   4 155 38.16
14
24
17123 Destroying the Weapon Warehouse   125 38.16
1
1
37390 Colored Development   5 26 38.16
21
30
18201 RK Sorting   20 1331 38.15
21
12
7192 Integral Maximization   1 370 38.13
50
50
101 Fishmonger   48 2299 38.11
17
21
401 Translations   131 38.11
17
34
3495 The Nobel Thief   6 38.10
12236 Cloud Computing   35 38.10

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