[Solved] Identify the problem in this Ruby code using threads and fix it:count = 0 threads = 3.times.map do Thread.new do 100.times { count += 1 } end end threads.each(&:join) puts count | Ruby

Ruby - Concurrent Programming

Identify the problem in this Ruby code using threads and fix it:

count = 0
threads = 3.times.map do
  Thread.new do
    100.times { count += 1 }
  end
end
threads.each(&:join)
puts count

AAdd a Mutex to synchronize increments

BRemove threads and run increments sequentially

CUse Thread.kill to stop threads early

DNo problem, code is correct

Step-by-Step Solution

Solution:

Step 1: Identify race condition on count variable
Multiple threads increment count without synchronization causing race conditions.
Final Answer:
Add a Mutex to synchronize increments -> Option A
Quick Check:
Mutex prevents race conditions [OK]

Quick Trick: Use Mutex to protect shared data in threads [OK]

Common Mistakes:

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