ID NAME QUALITY USERS ACC % DIFFICULTY C I
30500 THE HONEYCOMB MAZE   11 253
16
16
5151 Alice‚Äôs Cube   7 451
26
23
4556 Think I will Buy Me a Football Team   22 1886
6
11
780 The Archipelago   -1 20
50
42
3377 A Bug’s Life   159 6914
14
13
34483 Connected country   1 9
34409 Disconnected country   5
3978 Distance Query   22 633
22
21
30116 Can you draw it or not?   7 104
3
5
1674 The Explosion   146
3133 Here We Go(relians) Again   3 107
12
12
11839 Graphic Sequence   41
26
34
6256 Inversion Count   330 10192
15
18
2670 Count Minimum Spanning Trees   3 127
26
42
4839 Ant   2 176
26
34
215 Panic in the Plazas   77
5732 Paradox   25 964
17
19
6288 Treeramids   8 858
22
17
913 Query on a tree II   65 2769
24
22
3724 Rainbow Ride   6 438
19
19
3405 Almost Shortest Path   50 1259
23
22
3643 Traffic Network   52 1454
19
21
23132 Travelling cost   27 973
10
8
34565 Tetrahedrons in the country   2 8
17
17
18458 Very Friends 2   3 24
23
23
18457 Very Friends   6 197
11
30
666 Con-Junctions   26 692
15
20
41 Play on Words   29 2369
21
26
6294 Yodaness Level   48 2573
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