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list of classical problems


ID NAME QUALITY USERS ACC % DIFFICULTY C I
34682 Good Elements   10 140 29.05
6
5
34975 Prime Friendly Numbers   10 41 19.59
28
26
36132 Rightful Distribution   10 152 40.16
8
8
36424 Abul and Prime Numbers   10 273 43.88
1
7
37053 Trailing Zeros   10 54 53.92
8
16
37169 Boba Inversion   10 101 34.12
15
20
17 The Bytelandian Cryptographer (Act I)   9 1365 41.88
15
26
22 Triangle From Centroid   9 2666 46.20
9
22
417 The lazy programmer   9 646 20.08
21
23
676 Sorting is not easy   9 538 39.70
19
32
1700 Traveling by Stagecoach   9 456 38.46
19
17
2320 Manhattan   9 695 32.28
20
34
2426 Palindromes   9 999 24.45
17
14
2526 Decoding   9 1034 36.32
23
15
2817 Distinct Increasing Subsequences   9 785 24.52
22
26
2901 One Geometry Problem   9 1814 36.10
4
13
3195 Doors and Penguins   9 238 27.22
19
16
3937 Wooden Sticks   9 675 36.81
23
28
5451 Not So Flat After All   9 1122 42.62
11
10
7108 Heptadecimal Numbers   9 1222 35.57
2
2
7586 Number of Palindromes   9 1331 46.26
13
13
8995 CANDY   9 1334 38.30
8
6
9385 Strictly not a Prime   9 363 28.62
17
12
9386 Re-Arrange II   9 270 44.49
21
17
10233 Magical Bridges   9 162 27.59
29
24
10366 Play with Dates   9 1416 38.56
16
6
10606 Balanced Numbers   9 540 26.70
23
17
10639 The Blind Passenger   9 1990 44.66
4
5
12262 Mirror Strings !!!   9 915 33.32
16
17
12810 Yet Another Multiple Problem   9 272 21.72
21
23
13117 White Hats   9 614 37.51
4
14
13643 BATMAN3   9 911 41.62
11
12
13707 SHAHBAG   9 1457 39.19
4
5
14168 Amazing Factor Sequence (medium)   9 202 29.02
21
24
15437 Tambourine   9 1490 49.89
6
2
17617 WHAT A CO-ACCIDENT   9 1483 60.86
2
11
17717 Gopu and Counting Bitwise Prime Numbers   9 221 19.85
21
17
18408 The Valentine Confession   9 574 28.30
15
21
19144 Digo plays with Numbers   9 722 40.81
9
11
22337 Stick values   9 110 30.40
22
24
22412 Divisors of factorial (hard)   9 162 47.37
22
22
22463 Smallest Number (medium)   9 68 22.01
29
25
23153 Equivalent Passwords   9 72 36.19
21
14
23515 The Last String Bender   9 136 28.73
19
11
24957 Petya Brother and Repairment of Roads   9 158 27.90
24
24
25179 Kaos   9 275 41.18
19
25
25311 Candies   9 1085 35.68
6
7
25690 Laser Beam   9 71 25.76
9
22
26344 Related or not   9 362 52.34
8
9
26575 Grand Reward   9 431 58.82
16
8

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