Generating random numbers over a range in Go

I found this example at Go Cookbook, which is equivalent to rand.Range(min, max int) (if that function existed):

rand.Intn(max - min) + min

Don't forget to seed the PRNG before calling any rand function.

rand.Seed(time.Now().UnixNano())

This will generate random numbers within given range [a, b]

rand.Seed(time.Now().UnixNano())
n := a + rand.Intn(b-a+1)

source

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