list of classical problems


ID NAME QUALITY USERS ACC % DIFFICULTY C I
2817 Distinct Increasing Subsequences   9 794 24.57
22
26
2901 One Geometry Problem   9 1826 36.15
4
13
3195 Doors and Penguins   9 241 27.30
19
16
3937 Wooden Sticks   9 680 36.94
23
28
5451 Not So Flat After All   9 1126 42.77
11
10
6717 Two Paths   9 229 17.65
34
36
7108 Heptadecimal Numbers   9 1230 35.70
2
2
7586 Number of Palindromes   9 1407 46.74
13
13
8791 Dynamic LCA   9 484 29.42
26
24
8995 CANDY   9 1344 38.34
8
6
9385 Strictly not a Prime   9 366 28.59
17
12
9386 Re-Arrange II   9 272 44.46
21
17
10233 Magical Bridges   9 167 26.95
29
24
10366 Play with Dates   9 1430 38.70
16
6
10606 Balanced Numbers   9 623 28.64
23
17
10639 The Blind Passenger   9 1995 44.71
4
5
11470 To the moon   9 1078 22.79
26
23
12262 Mirror Strings !!!   9 942 33.54
16
17
12366 Cantor   9 207 46.64
22
22
12810 Yet Another Multiple Problem   9 319 22.20
21
23
13117 White Hats   9 617 37.53
4
14
13643 BATMAN3   9 915 41.65
11
12
13707 SHAHBAG   9 1465 39.21
4
5
14168 Amazing Factor Sequence (medium)   9 229 29.40
21
24
15437 Tambourine   9 1495 49.92
6
2
17617 WHAT A CO-ACCIDENT   9 1502 60.61
2
11
17717 Gopu and Counting Bitwise Prime Numbers   9 223 19.79
21
17
18408 The Valentine Confession   9 579 28.52
15
21
19144 Digo plays with Numbers   9 725 40.74
9
11
22337 Stick values   9 119 30.43
22
24
22412 Divisors of factorial (hard)   9 184 46.72
22
22
22463 Smallest Number (medium)   9 68 20.80
29
25
23153 Equivalent Passwords   9 76 36.01
21
14
23515 The Last String Bender   9 136 27.48
19
11
24957 Petya Brother and Repairment of Roads   9 170 27.97
24
24
25179 Kaos   9 279 40.65
19
25
25311 Candies   9 1092 35.76
6
7
25690 Laser Beam   9 74 26.25
9
22
26344 Related or not   9 364 52.39
8
9
26575 Grand Reward   9 433 58.85
16
8
26928 The Crossover   9 104 16.83
22
16
27369 Gupta ji Birthday !!   9 127 32.80
19
19
28450 Ada and Path   9 107 30.76
17
29
28607 Descending Alternating Sums   9 136 38.25
10
16
28798 Yet Another Xor Sequence   9 113 45.87
9
13
30349 Strange Waca   9 44 20.18
17
22
30396 Easy GCD   9 100 31.91
8
8
30759 Ada and Species   9 126 26.30
27
31
30827 THE LAST SHOT   9 658 29.02
9
7
31099 Ada and CAPTCHA   9 176 17.02
20
16

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