# 05. Print adjacency list

The problem can be found at the following link: [Question Link](https://practice.geeksforgeeks.org/problems/print-adjacency-list-1587115620/1)

## My Approach

A basic question with a direct approach:

* I'm creating an adjacency list of a 2D vector to represent the graph.
* I iterate through the given edges and `push` them to the adjacency list, ensuring to push vertices from both directions since it's an undirected graph.

## Time and Auxiliary Space Complexity

* **Time Complexity** : `O(E)`, where `E` is the number of edges in the graph.
* **Auxiliary Space Complexity** : `O(V + E)`, where `V` is the number of vertices and `E` is the number of edges.

## Code (C++)

```cpp
class Solution {
public:
    vector<vector<int>> printGraph(int V, vector<pair<int,int>> edges) {
        vector<vector<int>> adjList(V);
        for(auto edge: edges){
            int u = edge.first;
            int v = edge.second;
            adjList[u].push_back(v);
            adjList[v].push_back(u);
        }
        return adjList;
    }
};
```

## Contribution and Support

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