list of classical problems


ID NAME QUALITY USERS ACC % DIFFICULTY C I
1 Life, the Universe, and Everything   195 126481 32.99
3
3
2 Prime Generator   359 41249 15.47
16
14
3 Substring Check (Bug Funny)   819 10.18
42
12
4 Transform the Expression   121 25527 48.76
11
11
5 The Next Palindrome   283 12809 10.12
24
19
6 Simple Arithmetics   7 2090 12.30
31
8
7 The Bulk!   3 345 26.78
30
17
8 Complete the Sequence!   20 2153 33.24
15
17
9 Direct Visibility   204 18.27
34
34
10 Complicated Expressions   7 714 26.17
13
9
11 Factorial   102 35014 45.90
6
12
12 The Game of Master-Mind   231 43.76
13 Hotline   157 27.99
14 I-Keyboard   4 741 37.23
26
23
15 The Shortest Path   71 3747 22.06
19
13
16 Sphere in a tetrahedron   6 2160 58.47
11
12
17 The Bytelandian Cryptographer (Act I)   5 747 33.04
12
23
18 The Bytelandian Cryptographer (Act II)   2 631 36.76
28
1
19 The Bytelandian Cryptographer (Act III)   1 123 41.59
17
17
20 The Bytelandian Cryptographer (Act IV)   1 41 25.32
28
34
22 Triangle From Centroid   7 1436 43.81
8
19
23 Pyramids   -22 3801 36.28
9
14
24 Small factorials   81 28682 30.28
14
8
25 Pouring water   58 3305 22.02
18
21
26 Build the Fence   28 1541 31.63
23
17
27 Sorting Bank Accounts   29 5529 40.52
9
7
28 Help the Military Recruitment Office!   3 434 12.96
11
1
29 Hash it!   9 2083 21.26
12
4
30 Bytelandian Blingors Network   39 2531 36.36
14
8
31 Fast Multiplication   32 3638 16.71
14
14
32 A Needle in the Haystack   102 5884 36.89
15
13
33 Trip   12 1093 20.74
26
14
34 Run Away   1 249 34.15
17
34
35 Equipment Box   2 856 13.87
13
21
36 Secret Code   5 180 23.76
17
17
37 The Proper Key   1 126 21.55
17
17
38 Labyrinth   47 3554 24.50
19
16
39 Piggy-Bank   84 5400 34.08
13
16
40 Lifting the Stone   4 1265 21.88
15
17
41 Play on Words   26 2291 17.99
21
26
42 Adding Reversed Numbers   53 42802 48.60
7
4
43 Copying Books   24 1592 24.07
18
19
44 Substitution Cipher   1 296 15.27
17
17
45 Commedia dell Arte   197 38.67
1
17
47 Skyscraper Floors   2 248 13.34
17
17
48 Glass Beads   22 2386 36.50
15
17
49 Hares and Foxes   -1 97 10.56
50 Invitation Cards   21 963 41.32
17
17
51 Fake tournament   27 1148 24.26
13
17
54 Julka   88 14727 27.60
19
6

Most popular tags