// First test
new: 4
insert! -1 0  0.3
insert!  0 4  0.3
insert!  0 3 -0.3
insert   0 0  0.3 0
insert   0 1  0.3 1
mst      0.3 1
insert   2 3  0.4 1
mst      0.7 2
insert   0 2  0.5 1
mst      1.2 3
insert   1 3  0.1 1
mst      0.8 3
insert   1 3  0.9 1
mst      1.2 3
insert   1 3  0.9 1
mst      1.2 3
delete
// Second test
new: 5
insert 0 1 0.1 1
insert 1 2 0.1 1
insert 2 3 0.1 1
insert 0 4 3.1 1
insert 1 4 2.1 1
insert 2 4 1.1 1
insert 3 4 0.9 1
insert 0 2 0.4 1
insert 0 3 0.5 1
insert 1 3 0.6 1
mst 1.2 7
insert 0 4 0.45 1
mst 0.75 5
erase 0 4 1
mst 1.2 7
delete
summary