FastPrepDynamic Friendship Connectivity

Dynamic Friendship Connectivity

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Problem statement

There are n servers numbered from 0 through n - 1. Their undirected connection multigraph is initially empty. Process operations in order:

The problem statement continues
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Examples

Example 1

n = 4operations = [[0,0,1],[0,1,2],[2,0,2],[1,1,2],[2,0,2]]return = [true,false]

The first two connections link servers 0 and 2. Removing {1,2} breaks that path before the second query.

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FastPrep Pro
Reported in 1 Google interview this week

Unlock this recently reported problem

FastPrep Pro gives you full access to interview problems reported within the last week.

  • Full problem statement and constraints
  • 2 more worked examples, explained
  • Guided hints and editorial
  • Run your code on real test cases
$8.25/month

$99 billed yearly — or $19 month-to-month. Cancel anytime.

Free plan — 2 of 2 free unlocks used this week