list of classical problems


ID NAME QUALITY USERS ACC % DIFFICULTY C I
3724 Rainbow Ride   9 497 36.16
19
19
3937 Wooden Sticks   9 681 36.97
23
28
5451 Not So Flat After All   9 1128 42.94
11
10
5468 Going to school   9 330 36.17
17
34
6717 Two Paths   9 231 17.81
34
36
7108 Heptadecimal Numbers   9 1231 35.72
2
2
7586 Number of Palindromes   9 1426 46.68
13
13
8791 Dynamic LCA   9 494 29.70
26
24
8995 CANDY   9 1347 38.35
8
6
9385 Strictly not a Prime   9 370 28.68
17
12
9386 Re-Arrange II   9 278 44.33
21
17
10233 Magical Bridges   9 170 27.03
29
24
10366 Play with Dates   9 1434 38.73
16
6
10606 Balanced Numbers   9 650 29.17
23
17
10639 The Blind Passenger   9 1998 44.71
4
5
11470 To the moon   9 1141 23.28
26
23
12262 Mirror Strings !!!   9 948 33.54
16
17
12366 Cantor   9 209 46.83
22
22
12810 Yet Another Multiple Problem   9 333 22.66
21
23
13117 White Hats   9 618 37.56
4
14
13643 BATMAN3   9 918 41.72
11
12
13707 SHAHBAG   9 1469 39.21
4
5
14168 Amazing Factor Sequence (medium)   9 231 29.52
21
24
15437 Tambourine   9 1497 49.95
6
2
17617 WHAT A CO-ACCIDENT   9 1504 60.62
2
11
17717 Gopu and Counting Bitwise Prime Numbers   9 225 19.81
21
17
17955 Lalith Dosa   9 428 26.24
12
23
18408 The Valentine Confession   9 581 28.58
15
21
19144 Digo plays with Numbers   9 726 40.73
9
11
22412 Divisors of factorial (hard)   9 188 46.50
22
22
22463 Smallest Number (medium)   9 70 21.04
29
25
23153 Equivalent Passwords   9 77 36.16
21
14
23515 The Last String Bender   9 138 27.65
19
11
24957 Petya Brother and Repairment of Roads   9 177 28.28
24
24
25179 Kaos   9 282 40.67
19
25
25311 Candies   9 1096 35.86
6
7
25690 Laser Beam   9 75 26.30
9
22
26344 Related or not   9 369 52.35
8
9
26575 Grand Reward   9 435 59.06
16
8
26928 The Crossover   9 105 16.88
22
16
27369 Gupta ji Birthday !!   9 128 32.68
19
19
28450 Ada and Path   9 109 30.98
17
29
28607 Descending Alternating Sums   9 137 38.38
10
16
28798 Yet Another Xor Sequence   9 116 46.56
9
13
30349 Strange Waca   9 45 20.53
17
22
30396 Easy GCD   9 101 32.08
8
8
30827 THE LAST SHOT   9 659 29.07
9
7
31099 Ada and CAPTCHA   9 179 17.31
20
16
34557 Apoorv Loves Primes   9 54 44.61
26
30
34867 Coding Test   9 159 24.22
14
13

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