Golang template for competitive programming

competitive.go

package main
 
import (
    "bufio"
    . "fmt"
    "os"
    "math"
)

var (
    in = bufio.NewReader(os.Stdin)
    out = bufio.NewWriter(os.Stdout)
)
 
func main() {
    defer out.Flush()
    
    var L, s1, s2 float64
    var q int
    Fscan(in, &L, &s1, &s2)
    for Fscan(in, &q); q > 0; q-- {
        var Q float64
        Fscan(in, &Q)
        
        if s1 > s2 {
            s1, s2 = s2, s1
        }
        
        var Time float64
        
        Time = (math.Sqrt(2) * (L - math.Sqrt(Q))) / (s2 - s1)
        
        if Time >= 0 {
            Printf("%.6f\n", Time)
        } else {
            Time = 0.0000000
            Printf("%.6f\n", Time)
        }
    }
}