list of classical problems


ID NAME QUALITY USERS ACC % DIFFICULTY C I
35669 Consecutive Letters   8 433 27.21
16
19
35956 Square Free Number   8 66 37.92
20
17
36324 Richest_Beggar   8 171 35.45
4
10
36533 Gentleman s Wallet   8 52 40.96
13
17
36537 Koala Fan   8 40 23.28
13
10
36861 Yet Another Perfect Square Equation   8 56 31.48
10
20
37387 Modulo Sequence   8 52 14.38
21
21
40808 Crowded Music Festival   8 44 49.15
8
13
22 Triangle From Centroid   9 2631 46.64
9
22
417 The lazy programmer   9 645 20.09
21
23
676 Sorting is not easy   9 535 39.62
19
32
1700 Traveling by Stagecoach   9 448 38.76
19
17
2426 Palindromes   9 986 24.35
17
14
2526 Decoding   9 1034 36.32
23
15
2901 One Geometry Problem   9 1787 36.04
4
13
3195 Doors and Penguins   9 237 27.53
19
16
5451 Not So Flat After All   9 1116 42.57
11
10
5978 Frequent Prime Ranges   9 689 29.17
13
13
7108 Heptadecimal Numbers   9 1220 35.55
2
2
8995 CANDY   9 1330 38.30
8
6
9385 Strictly not a Prime   9 363 28.67
17
12
10233 Magical Bridges   9 162 27.59
29
24
10366 Play with Dates   9 1411 38.46
16
6
10606 Balanced Numbers   9 483 25.24
23
17
10639 The Blind Passenger   9 1989 44.73
4
5
12005 Grass Planting   9 495 43.42
32
17
12262 Mirror Strings !!!   9 897 33.12
16
17
12810 Yet Another Multiple Problem   9 262 21.26
21
23
13117 White Hats   9 613 37.59
4
14
13643 BATMAN3   9 910 41.61
11
12
13707 SHAHBAG   9 1452 39.17
4
5
14168 Amazing Factor Sequence (medium)   9 200 29.00
21
24
14846 Bribe the Prisoners   9 368 30.93
17
19
14871 STUDENTS   9 429 47.75
8
12
15437 Tambourine   9 1484 49.94
6
2
15561 Find Number Of Pair of Friends   9 421 32.06
22
19
17617 WHAT A CO-ACCIDENT   9 1473 60.75
2
11
17717 Gopu and Counting Bitwise Prime Numbers   9 221 19.85
21
17
18149 Rama and Friends   9 986 28.54
15
13
18408 The Valentine Confession   9 572 28.24
15
21
19144 Digo plays with Numbers   9 722 40.81
9
11
22337 Stick values   9 106 29.96
22
24
22412 Divisors of factorial (hard)   9 158 47.63
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   9 135 28.64
19
11
24957 Petya Brother and Repairment of Roads   9 154 27.77
24
24
25179 Kaos   9 269 41.28
19
25
25311 Candies   9 1075 35.68
6
7
25690 Laser Beam   9 71 25.76
9
22

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