ID NAME QUALITY USERS ACC % DIFFICULTY C I
30500 THE HONEYCOMB MAZE   15 520
17
16
5151 Alice’s Cube   7 482
26
23
4556 Think I will Buy Me a Football Team   28 2074
7
11
780 The Archipelago   25
45
34
3377 A Bug’s Life   321 12515
12
13
34483 Connected country   12 357
7
5
34409 Disconnected country   1 24
34
34
3978 Distance Query   57 1202
23
21
30116 Can you draw it or not?   12 171
4
8
37922 See you again?   3 43
12
12
1674 The Explosion   146
3133 Here We Go(relians) Again   3 162
12
12
11839 Graphic Sequence   1 49
17
23
37921 Birthday Present   2 25
34
26
37375 Kingdom of Equality   2 6
34
34
2670 Count Minimum Spanning Trees   4 158
28
39
4839 Ant   3 185
23
28
215 Panic in the Plazas   77
5732 Paradox   41 1175
16
19
6288 Treeramids   14 1065
20
16
913 Query on a tree II   108 3596
24
21
3724 Rainbow Ride   8 469
19
19
3405 Almost Shortest Path   76 1565
22
21
3643 Traffic Network   80 1825
18
21
23132 Travelling cost   36 1428
10
8
34565 Tetrahedrons in the country   4 36
17
23
18458 Very Friends 2   4 33
23
23
18457 Very Friends   6 223
11
30
666 Con-Junctions   30 839
14
19
41 Play on Words   42 2747
21
24
6294 Yodaness Level   71 3252
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