Find building proximity

[satees]

Four buildings A,B,C ,D

Building1 Build2 ActualDistance AllowedDistance

A B 50 60

A C 40 50

A D 40 35

B C 90 10

B D 78 12

C D 45 50




in this combination if the actual distance is < allowed diatnce then the two buildings will be considered as a single building other wise separate buildings.


AB,AC,CD are < allowed distance.so they are considering as a single buildings.so the display should be

A+B+C+D


Example 2:
Building1 Build2 ActualDistance AllowedDistance

A B 50 60

A C 40 30

A D 40 35

B C 90 10

B D 78 12

C D 45 50


Here AB,CD are considered as single so the display will be

A+B C+D

Example 3:

Building1 Build2 ActualDistance AllowedDistance

A B 89 60

A C 40 30

A D 40 35

B C 90 10

B D 78 12

C D 45 50


here CD are considered as a single

so the display should be

A B C+D.



This is for 4 buildings.it will be extended to upto n buildings.


i want the logic to display like this in c# .

Thanks for the help