ID NAME QUALITY USERS ACC % DIFFICULTY C I
30500 THE HONEYCOMB MAZE   12 357
16
15
5151 Alice’s Cube   7 468
26
23
4556 Think I will Buy Me a Football Team   24 1969
6
11
780 The Archipelago   22
45
34
3377 A Bug’s Life   226 8218
13
13
34483 Connected country   5 110
6
1
34409 Disconnected country   15
3978 Distance Query   33 829
22
21
30116 Can you draw it or not?   11 132
4
8
1674 The Explosion   147
3133 Here We Go(relians) Again   3 148
12
12
11839 Graphic Sequence   48
26
34
6256 Inversion Count   406 11469
16
18
2670 Count Minimum Spanning Trees   4 145
28
39
4839 Ant   3 182
23
28
215 Panic in the Plazas   77
5732 Paradox   32 1063
17
19
6288 Treeramids   11 940
22
17
913 Query on a tree II   83 3109
24
22
3724 Rainbow Ride   6 458
19
19
3405 Almost Shortest Path   63 1406
22
20
3643 Traffic Network   69 1636
18
21
23132 Travelling cost   29 1170
10
8
34565 Tetrahedrons in the country   3 17
17
17
18458 Very Friends 2   4 28
23
23
18457 Very Friends   6 212
11
30
666 Con-Junctions   27 759
14
19
41 Play on Words   36 2508
21
25
6294 Yodaness Level   54 2803
14
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