Added Representation of graphs

Author: smv1999

Data Structures/Graphs/Representation/adjacency_list.cpp

@@ -0,0 +1,30 @@
+#include <iostream>
+#include <vector>
+
+using namespace std;
+
+int main(int argc, char const *argv[])
+{
+    int n, m;
+    cin >> n >> m;
+
+    vector<int> adj_list[n + 1];
+
+    while (m--)
+    {
+        int u, v;
+        cin >> u >> v;
+
+        adj_list[u].push_back(v);
+        adj_list[v].push_back(u);
+        
+    }
+
+    for(int i=1; i<n+1; i++) {
+        for(int j=0; j<adj_list[i].size(); j++)
+            cout << adj_list[i][j] << " ";
+        cout << "\n";
+    }
+
+    return 0;
+}

Data Structures/Graphs/Representation/adjacency_matrix.cpp

@@ -0,0 +1,28 @@
+#include <iostream>
+
+using namespace std;
+
+int main(int argc, char const *argv[])
+{
+    int n, m;
+    cin >> n >> m;
+
+    int adj[n + 1][n + 1];
+
+    while (m--)
+    {
+        int u, v;
+        cin >> u >> v;
+        adj[u][v] = 1;
+        adj[v][u] = 1;
+    }
+    for (int i = 0; i < n + 1; i++)
+    {
+        for (int j = 0; j < n + 1; j++)
+        {
+            cout << adj[i][j] << "\t\t";
+        }
+        cout << "\n";
+    }
+    return 0;
+}