[Solved] c++ error : Segmentation fault (core dumped)

Question

In your main you define gh(5) which allocates the vector of size 5 then you use your addEdge method with parameter (5,6) which tries to access list[5] but the five list entries are list[0],list[1],list[2],list[3], and list[4]. So I guess gh.addEdge(5,6) gives the Segmentation fault as it is out of range of your vector.

Accepted Answer

In your main you define gh(5) which allocates the vector of size 5 then you use your addEdge method with parameter (5,6) which tries to access list[5] but the five list entries are list[0],list[1],list[2],list[3], and list[4]. So I guess gh.addEdge(5,6) gives the Segmentation fault as it is out of range of your vector.