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list of classical problems


ID NAME QUALITY USERS ACC % DIFFICULTY C I
34975 Prime Friendly Numbers   10 39 20.28
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 99 33.88
15
20
22 Triangle From Centroid   9 2660 46.43
9
22
417 The lazy programmer   9 645 20.09
21
23
676 Sorting is not easy   9 536 39.66
19
32
1700 Traveling by Stagecoach   9 453 38.30
19
17
2320 Manhattan   9 694 32.25
20
34
2426 Palindromes   9 994 24.40
17
14
2526 Decoding   9 1034 36.32
23
15
2817 Distinct Increasing Subsequences   9 784 24.52
22
26
2901 One Geometry Problem   9 1812 36.06
4
13
3195 Doors and Penguins   9 238 27.22
19
16
5451 Not So Flat After All   9 1118 42.59
11
10
7108 Heptadecimal Numbers   9 1222 35.57
2
2
8995 CANDY   9 1334 38.33
8
6
9385 Strictly not a Prime   9 363 28.62
17
12
9386 Re-Arrange II   9 269 44.27
21
17
10233 Magical Bridges   9 162 27.59
29
24
10366 Play with Dates   9 1414 38.53
16
6
10606 Balanced Numbers   9 522 26.30
23
17
10639 The Blind Passenger   9 1989 44.70
4
5
12262 Mirror Strings !!!   9 913 33.29
16
17
12810 Yet Another Multiple Problem   9 267 21.51
21
23
13117 White Hats   9 614 37.51
4
14
13643 BATMAN3   9 910 41.61
11
12
13707 SHAHBAG   9 1455 39.19
4
5
14168 Amazing Factor Sequence (medium)   9 201 28.99
21
24
15437 Tambourine   9 1488 49.83
6
2
15561 Find Number Of Pair of Friends   9 433 32.05
22
19
17617 WHAT A CO-ACCIDENT   9 1479 60.82
2
11
17717 Gopu and Counting Bitwise Prime Numbers   9 221 19.85
21
17
18408 The Valentine Confession   9 572 28.24
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)   9 159 47.87
22
22
22463 Smallest Number (medium)   9 68 22.01
29
25
23153 Equivalent Passwords   9 71 36.04
21
14
23515 The Last String Bender   9 136 28.73
19
11
24957 Petya Brother and Repairment of Roads   9 158 27.82
24
24
25179 Kaos   9 275 41.18
19
25
25311 Candies   9 1080 35.69
6
7
25690 Laser Beam   9 71 25.76
9
22
26344 Related or not   9 361 52.35
8
9
26575 Grand Reward   9 430 58.77
16
8
26928 The Crossover   9 100 16.42
22
16
27369 Gupta ji Birthday !!   9 123 32.19
19
19
28607 Descending Alternating Sums   9 129 38.26
10
16

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