Is Graph Connected

easy
1. You are given a graph.
2. You are required to find and print if the graph is connected (there is a path from 
     every vertex to every other).

Input Format

Input has been managed for you

Output Format

true if the graph is connected, false otherwise

Constraints

None

Notice

Try First, Check Solution later

1. You should first read the question and watch the question video.
2. Think of a solution approach, then try and submit the question on editor tab.
3. We strongly advise you to watch the solution video for prescribed approach.

Example

Input
7
5
0 1 10
2 3 10
4 5 10
5 6 10
4 6 10
Output
false
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Number Of Islands

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