list of classical problems


ID NAME QUALITY USERS ACC % DIFFICULTY C I
8277 Number of Prime Strings   3 91 18.95
23
28
6499 Breaking Chocolates   1 99 18.95
17
17
5147 Fire-Control System   31 18.97
34
17
26194 The wit of Tenali Raman   1 9 18.97
1
34
8286 Perfect Matching   90 18.98
1
17
26771 Almost Prime Numbers Again   16 281 19.00
24
20
1715 Another Necklace Problem   50 19.00
2742 Summing Sums   17 912 19.02
16
23
1442 Strange Food Chain   19 831 19.02
22
25
30783 Ada and Cucumber   6 105 19.02
34
24
2152 Hilbert Curve   1 13 19.02
34
34
40982 Teleporters and Gems II   3 33 19.02
1
1
3605 Minimum Rotations   15 908 19.03
15
21
14886 Matts Trip   2 68 19.04
1
17
8574 Four in a row   2 22 19.05
26
17
8586 Factorial factorisation   2 41 19.05
17
17
15735 Balanced Food   1 8 19.05
26368 Power and Mod   4 254 19.05
20
20
10292 Shell game   -1 497 19.05
20041 Hippo and Bloody Jungle   -1 39 19.08
28
17
7488 LCM GCD Love   6 183 19.09
17
13
229 Sorting is easy   1 118 19.10
17
1
6767 Sequence Function   11 19.10
38365 Asacoco Prescription   2 43 19.10
17
26
10707 Count on a tree II   65 3082 19.10
31
31
15143 play with prime numbers (I)   5 32 19.10
23
23
9636 A Canvas Building   66 19.12
17
17
2415 Kirchhof Law   1 90 19.13
34
17
10231 Wizarding Duel   1 73 19.16
1
1
134 Phony Primes   1 180 19.18
23
23
2272 Crossing the Desert   50 19.18
1479 The GbAaY Kingdom   1 125 19.23
28
39
5145 Déjà vu   16 19.23
13806 Chaos In Arkham   1 51 19.23
1
34
14935 Cactus   5 167 19.27
16
14
8550 Longest Square Factor   4 67 19.29
21
34
12933 n-divisors   59 2305 19.31
18
17
8820 Okret   3 40 19.32
39
34
14329 Magic of the locker   19 2478 19.33
4
13
4828 ZSequence   51 19.33
34975 Prime Friendly Numbers   10 41 19.33
28
26
16549 Query on a tree VI   10 510 19.33
36
26
26913 SUPER CELL   1 32 19.34
17
17
972 Birthday   120 19.34
17
17
10236 Generations   1 54 19.35
34
34
25180 Gyanbabas Admission Test   2 67 19.37
30
38
6779 Can you answer these queries VII   17 1258 19.39
38
27
29452 Width of The Lost Box   36 19.39
17
1
41 Play on Words   42 3229 19.40
21
24
3866 Finding Palindromes   7 246 19.43
19
23

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