/* * C++ Program to Describe the Representation of Graph using Adjacency Matrix */ #include #include #include using namespace std; struct node { int from,to; } a[5], t; void addEdge(int am[][5],int i,int j,int in) { a[in].from = i; a[in].to = j; for (int p = 0; p <= in; p++) { for (int q = p + 1; q <= in; q++) { if (a[p].from > a[q].from) { t = a[p]; a[p] = a[q]; a[q] = t; } else if (a[p].from == a[q].from) { if (a[p].to > a[q].to) { t = a[p]; a[p] = a[q]; a[q] = t; } } else { continue; } } } } int main() { int n, c = 0, x, y, ch, i, j; cout<<"Enter the no of vertices\n"; cin>>n; int am[5][5]; for (int i = 0; i < 5; i++) { for (int j = 0; j < 5; j++) { am[i][j] = 0; } } while (ch != -1) { cout<<"Enter the nodes between which you want to introduce edge\n"; cin>>x>>y; addEdge(am,x,y,c); c++; cout<<"Press -1 to exit\n"; cin>>ch; } for (int j = 0; j < c; j++) { am[a[j].from][j] = 1; am[a[j].to][j] = 1; } for (int i = 0; i < n; i++) { for (int j = 0; j < c; j++) { cout<