ID NAME QUALITY USERS ACC % DIFFICULTY C I
30500 THE HONEYCOMB MAZE   10 273
16
16
5151 Alice‚Äôs Cube   7 452
26
23
4556 Think I will Buy Me a Football Team   23 1901
6
11
780 The Archipelago   -1 21
50
42
3377 A Bug’s Life   172 7189
13
13
34483 Connected country   1 20
34409 Disconnected country   6
3978 Distance Query   23 670
22
21
30116 Can you draw it or not?   8 109
5
6
1674 The Explosion   146
3133 Here We Go(relians) Again   3 145
12
12
11839 Graphic Sequence   41
26
34
6256 Inversion Count   350 10464
16
18
2670 Count Minimum Spanning Trees   3 130
26
42
4839 Ant   2 177
26
34
215 Panic in the Plazas   77
5732 Paradox   27 990
17
19
6288 Treeramids   8 875
22
17
913 Query on a tree II   70 2835
24
22
3724 Rainbow Ride   6 440
19
19
3405 Almost Shortest Path   54 1296
22
21
3643 Traffic Network   55 1487
19
21
23132 Travelling cost   27 1013
10
8
34565 Tetrahedrons in the country   2 11
17
17
18458 Very Friends 2   4 26
23
23
18457 Very Friends   6 202
11
30
666 Con-Junctions   26 706
15
20
41 Play on Words   30 2390
21
26
6294 Yodaness Level   49 2612
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