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29 lines
464 B
Go
29 lines
464 B
Go
package main
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import (
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"encoding/json"
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"fmt"
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"math/rand"
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"os"
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)
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const lBytes = "abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ"
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type OutputSize struct {
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Size int `json:"size"`
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}
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func RandStringBytes(n int) string {
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b := make([]byte, n)
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for i := range b {
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b[i] = lBytes[rand.Intn(len(lBytes))]
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}
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return string(b)
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}
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func main() {
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out := &OutputSize{}
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json.NewDecoder(os.Stdin).Decode(out)
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fmt.Fprintln(os.Stderr, RandStringBytes(out.Size))
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}
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