I have a large graph (the number of vertices, edges can be in the range of 50,000-100,000). Have 3 queries:

1 .add one adges

1. remove one adges

2. 2 vertices x, y belong to one connected component?

Give an answer for each query type 3 ?

Sorry for my bad English.

My code was compiled error but FPC 2.4.2 on my computer compiles normal .

code : 6671643