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- package main
- import (
- "fmt"
- "math"
- )
- func main() {
- var L, R int
- fmt.Scan(&L, &R)
- theta := float64(L) / float64(R)
- fmt.Printf("%.3f %.3f\n", float64(R)*math.Cos(theta), float64(R)*math.Sin(-theta))
- fmt.Printf("%.3f %.3f", float64(R)*math.Cos(theta), float64(R)*math.Sin(theta))
- }
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