Answers for "Adjacency List and Adjacency Matrix"

Adjacency List

#include<iostream >
 #include < vector >

using namespace std;

vector <int> adj[10];

int main()
{
    int x, y, nodes, edges;
    cin >> nodes;       // Number of nodes
    cin >> edges;       // Number of edges
    for(int i = 0;i < edges;++i)
    {
            cin >> x >> y;
        adj[x].push_back(y);        // Insert y in adjacency list of x
     }
for(int i = 1;i <= nodes;++i)
{   
        cout << "Adjacency list of node " << i << ": ";
    for(int j = 0;j < adj[i].size();++j)
        {
        if(j == adj[i].size() - 1)
                cout << adj[i][j] << endl;
        else
            cout << adj[i][j] << " --> ";
}
}
return 0;
}