ID NAME QUALITY USERS ACC % DIFFICULTY C I
30 Bytelandian Blingors Network   50 2992
14
9
368 Cobbled streets   89 4753
14
13
11443 Davids Greed   4 208
28
21
16776 Modems   7 125
20
17
3381 Highways   58 3377
9
9
18284 Petya and the Road Repairs   45 681
18
21
3188 Minimum Spanning Tree   76 5903
9
9
13868 Roads of NITT   28 394
23
24
15650 Dark roads   25 950
11
10

#mst

minimum spanning tree

https://en.wikipedia.org/wiki/Minimum_spanning_tree http://algs4.cs.princeton.edu/43mst/