list of classical problems


ID NAME QUALITY USERS ACC % DIFFICULTY C I
1 Life, the Universe, and Everything   139 106423 32.93
3
3
2 Prime Generator   241 33493 15.28
17
15
3 Substring Check (Bug Funny)   731 10.60
39
10
4 Transform the Expression   75 21548 49.08
10
11
5 The Next Palindrome   187 10898 9.96
24
19
6 Simple Arithmetics   3 1899 12.27
30
9
7 The Bulk!   3 320 27.05
30
17
8 Complete the Sequence!   15 1914 32.54
14
15
9 Direct Visibility   191 18.49
10 Complicated Expressions   3 668 26.14
12
6
11 Factorial   72 30690 45.77
5
11
12 The Game of Master-Mind   209 43.28
13 Hotline   149 27.72
14 I-Keyboard   4 715 37.32
26
23
15 The Shortest Path   42 2931 21.37
21
14
16 Sphere in a tetrahedron   7 1979 58.51
10
10
17 The Bytelandian Cryptographer (Act I)   5 696 32.35
12
23
18 The Bytelandian Cryptographer (Act II)   1 601 37.26
28
1
19 The Bytelandian Cryptographer (Act III)   1 120 42.36
17
17
20 The Bytelandian Cryptographer (Act IV)   36 6.95
28
34
22 Triangle From Centroid   5 1340 43.20
7
17
23 Pyramids   -17 3553 37.29
6
13
24 Small factorials   61 25209 30.25
15
9
25 Pouring water   39 2804 21.23
17
19
26 Build the Fence   24 1308 30.89
22
16
27 Sorting Bank Accounts   21 4642 40.46
9
6
28 Help the Military Recruitment Office!   2 394 12.89
12
1
29 Hash it!   5 1755 21.43
9
4
30 Bytelandian Blingors Network   24 2126 35.19
16
9
31 Fast Multiplication   26 2847 15.49
10
10
32 A Needle in the Haystack   78 4921 36.28
14
13
33 Trip   12 954 20.22
26
14
34 Run Away   218 33.07
35 Equipment Box   2 819 13.83
13
21
36 Secret Code   4 176 24.48
17
26
37 The Proper Key   1 126 22.02
17
17
38 Labyrinth   32 3041 24.29
18
16
39 Piggy-Bank   61 4676 33.37
15
15
40 Lifting the Stone   2 1203 21.62
17
20
41 Play on Words   17 2088 17.66
17
23
42 Adding Reversed Numbers   39 37071 48.31
6
4
43 Copying Books   10 1378 24.55
17
20
44 Substitution Cipher   1 293 15.42
17
17
45 Commedia dell Arte   190 38.93
1
17
47 Skyscraper Floors   2 242 13.62
17
17
48 Glass Beads   17 2229 35.79
15
18
49 Hares and Foxes   -1 96 10.83
50 Invitation Cards   14 808 39.26
16
17
51 Fake tournament   21 1018 23.77
12
16
54 Julka   64 13155 28.01
19
5

Most popular tags