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1 import time
2 
3 // Simulate expensive computing using sleep function
4 fn expensive_computing(id int, duration int) {
5     println('Executing expensive computing task (${id})...')
6     time.sleep(duration * time.millisecond)
7     println('Finish task ${id} on ${duration} ms')
8 }
9 
10 fn main() {
11     mut threads := []thread{}
12     threads << spawn expensive_computing(1, 100)
13     threads << spawn expensive_computing(2, 500)
14     threads << spawn expensive_computing(3, 1000)
15     // Join all tasks
16     threads.wait()
17     println('All jobs finished!')
18 }

1	import time
2
3	// Simulate expensive computing using sleep function
4	fn expensive_computing(id int, duration int) {
5	println('Executing expensive computing task (${id})...')
6	time.sleep(duration * time.millisecond)
7	println('Finish task ${id} on ${duration} ms')
8	}
9
10	fn main() {
11	mut threads := []thread{}
12	threads << spawn expensive_computing(1, 100)
13	threads << spawn expensive_computing(2, 500)
14	threads << spawn expensive_computing(3, 1000)
15	// Join all tasks
16	threads.wait()
17	println('All jobs finished!')
18	}