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import time
// Simulate expensive computing using sleep function
fn expensive_computing(id int, duration int) {
println('Executing expensive computing task ($id)...')
time.sleep(duration * time.millisecond)
println('Finish task $id on $duration ms')
}
fn main() {
mut threads := []thread{}
threads << go expensive_computing(1, 100)
threads << go expensive_computing(2, 500)
threads << go expensive_computing(3, 1000)
// Join all tasks
threads.wait()
println('All jobs finished!')
}
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