list of classical problems (unsolved)


ID NAME QUALITY USERS ACC % DIFFICULTY C I
10186 Divisor Digits   6 1290 30.93
8
12
27217 Minimum Sum   13 189 41.37
16
12
34619 Pizza Prize   7 131 46.88
14
12
34686 Meet Her Fast!   8 144 42.05
16
12
7804 Defense of a Kingdom   41 5233 25.17
10
12
8363 COSTLY CHESS   23 1768 43.07
14
12
11736 Prime Time   25 2167 48.59
11
12
14543 Range Sum   26 1014 38.04
11
12
25967 Social Network Community   31 1030 31.25
10
12
29695 GO GOA GONE   25 901 24.99
12
13
34743 Popatlal ki shaadi   17 315 20.71
14
13
6285 Another Game With Numbers   32 1333 31.23
11
13
4200 Hamster flight   13 1160 45.54
5
13
6290 Robbery 2   7 807 32.90
17
13
9569 Sum of Pairwise Products   7 841 31.50
6
13
13384 Nice Binary Trees   26 1840 39.88
9
13
17400 Height of Expectation   1 345 53.43
8
13
18056 Robert Langdon & Cipher   2 567 50.57
1
13
18202 HUGE GCD   17 687 33.32
14
13
18937 Touch of Venom   21 1406 23.29
11
13
21360 Suffix Equal Prefix   5 546 29.37
13
13
23336 Make Triangle   3 90 26.06
10
13
24998 PLAYING WITH BITS   34 796 22.00
13
13
25892 Palindrome in a Tree   8 155 35.99
17
13
28286 Archery Training   7 182 33.13
6
13
29455 Alphabetic Rope   7 238 36.15
20
13
32086 The Permutation Game Again   11 166 44.64
10
13
34623 Jeremías y sus loros   5 329 68.00
9
13
36166 Lucifer and Magical Substrings   14 105 46.38
12
13
36674 PIZZA   4 495 18.13
1
13
21524 Pattern Find   81 5062 38.72
10
13
1786 In Danger   49 4395 53.61
7
13
3377 A Bug’s Life   343 15927 27.72
12
13
4343 Empty Boxes   26 3582 65.99
2
13
21751 Help the Heroes   10 393 32.32
9
13
30947 Sabbir and gifts   21 373 32.88
16
13
35276 Smallest on the Stack   22 912 15.08
11
13
10582 subarrays   215 9569 34.36
11
13
3791 Street   8 669 51.43
10
13
9652 Robots on a grid   21 865 19.47
17
13
12726 XOR Game   5 541 43.97
11
13
14329 Magic of the locker   19 2633 19.41
4
13
29335 Movie Fan   12 152 66.08
9
13
34867 Coding Test   9 159 24.22
14
13
11372 Blueberries   62 2251 33.64
12
13
2150 Counting Subsequences   13 1031 29.42
9
13
15562 Find Lexicographically Smallest Permutation   13 365 40.41
16
13
3868 Total Flow   11 1398 36.29
14
13
18941 True Friends   30 1034 51.33
12
13
372 The Benefactor   49 3099 35.38
12
13

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