Bridge in Graph Problem Statement
Given an undirected graph with V vertices and E edges, your task is to find all the bridges in this graph. A bridge is an edge that, when removed, increases the number of connected components in the graph, effectively causing a disconnection.
Example:
Input:
If the given graph is represented as:
Edges = [(0, 1), (1, 2), (2, 3), (0, 4)]
Output:
Edge (0, 4)
Explanation:
The edge between 0 and 4 is a bridge because its removal disconnects the graph, increasing the number of components.
Constraints:
- No self-loops are present in the graph.
- No parallel edges exist; no two vertices are connected by more than one direct edge.
Input:
The input consists of multiple test cases formatted as follows:
The first line contains an integer T, the number of test cases.
Each test case starts with a line containing two space-separated integers V and E.
The next E lines of each test case describe the edges, with each line containing two space-separated integers a and b, denoting an edge between vertices a and b.
Output:
For each test case:
The first line should contain a single integer C, the count of bridges in the graph.
The following C lines should each contain the two vertices defining an edge that is a bridge, sorted in non-decreasing order.
Note:
You don't need to handle input/output operations or sorting, as these are managed. Implement the function to find the bridges.
Constraints:
- 1 <= T <= 50
- 1 <= V <= 10^3
- V-1 <= E <= 3 * 10^3
- 0 <= a, b < V
- Time Limit: 1 sec
Find all the bridges in an undirected graph by identifying edges that, when removed, increase the number of connected components.
Use DFS to find bridges in the graph.
Identify bridges by checking if re...read more
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