ID NAME QUALITY USERS ACC % DIFFICULTY C I
30500 THE HONEYCOMB MAZE   15 482
17
16
5151 Alice’s Cube   7 481
26
23
4556 Think I will Buy Me a Football Team   28 2055
7
11
780 The Archipelago   25
45
34
3377 A Bug’s Life   308 11268
12
13
34483 Connected country   12 301
7
5
34409 Disconnected country   1 24
34
34
3978 Distance Query   47 1086
23
20
30116 Can you draw it or not?   12 167
4
8
37922 See you again?   1 14
17
17
1674 The Explosion   147
3133 Here We Go(relians) Again   3 159
12
12
11839 Graphic Sequence   52
26
34
37921 Birthday Present   1 4
34
6256 Inversion Count   488 12975
16
18
37375 Kingdom of Equality   2 5
34
34
2670 Count Minimum Spanning Trees   4 163
28
39
4839 Ant   3 186
23
28
215 Panic in the Plazas   77
5732 Paradox   41 1167
16
19
6288 Treeramids   12 1044
22
18
913 Query on a tree II   106 3473
24
21
3724 Rainbow Ride   8 473
19
19
3405 Almost Shortest Path   74 1538
22
21
3643 Traffic Network   77 1788
18
20
23132 Travelling cost   35 1374
10
8
34565 Tetrahedrons in the country   3 34
17
17
18458 Very Friends 2   4 33
23
23
18457 Very Friends   6 220
11
30
666 Con-Junctions   30 826
14
19
41 Play on Words   39 2658
21
24
6294 Yodaness Level   68 3138
15
16

#graph-theory

The problem involves the study of graphs, which are mathematical structures used to model pairwise relations between objects.

https://en.wikipedia.org/wiki/Graph_theory http://primes.utm.edu/graph/ http://pallini.di.uniroma1.it/ - a program which help with generating graphs http://world.mathigon.org/Graph_Theory http://cs.bme.hu/fcs/graphtheory.pdf - Lecture Notes on Graph Theory