For problem statement at 0-999/0-99/60-69/65/problemC.txt this is a correct solution, but verifier at 0-999/0-99/60-69/65/verifierC.go ends with All tests passed can you fix the verifier? ```go
package main
import (
"bufio"
"fmt"
"math"
"os"
"strconv"
"strings"
)
type Point struct {
x, y, z float64
}
func minus(a, b Point) Point {
return Point{a.x - b.x, a.y - b.y, a.z - b.z}
}
func plus(a, b Point) Point {
return Point{a.x + b.x, a.y + b.y, a.z + b.z}
}
func scale(s float64, p Point) Point {
return Point{s * p.x, s * p.y, s * p.z}
}
func dot(a, b Point) float64 {
return a.x*b.x + a.y*b.y + a.z*b.z
}
func dist(a, b Point) float64 {
dx := a.x - b.x
dy := a.y - b.y
dz := a.z - b.z
return math.Sqrt(dx*dx + dy*dy + dz*dz)
}
func main() {
scanner := bufio.NewScanner(os.Stdin)
scanner.Scan()
n, _ := strconv.Atoi(strings.TrimSpace(scanner.Text()))
points := make([]Point, n+1)
for i := 0; i <= n; i++ {
scanner.Scan()
parts := strings.Fields(scanner.Text())
points[i].x, _ = strconv.ParseFloat(parts[0], 64)
points[i].y, _ = strconv.ParseFloat(parts[1], 64)
points[i].z, _ = strconv.ParseFloat(parts[2], 64)
}
scanner.Scan()
parts := strings.Fields(scanner.Text())
vp, _ := strconv.ParseFloat(parts[0], 64)
vs, _ := strconv.ParseFloat(parts[1], 64)
scanner.Scan()
parts = strings.Fields(scanner.Text())
px, _ := strconv.ParseFloat(parts[0], 64)
py, _ := strconv.ParseFloat(parts[1], 64)
pz, _ := strconv.ParseFloat(parts[2], 64)
P := Point{px, py, pz}
cum := make([]float64, n+1)
cum[0] = 0
for i := 1; i <= n; i++ {
cum[i] = cum[i-1] + dist(points[i-1], points[i])
}
k := vp / vs
const eps = 1e-9
if dist(P, points[0]) < eps {
fmt.Println("YES")
fmt.Printf("%.10f\n", 0.0)
fmt.Printf("%.10f %.10f %.10f\n", points[0].x, points[0].y, points[0].z)
return
}
for seg := 1; seg <= n; seg++ {
a := points[seg-1]
b := points[seg]
V := minus(b, a)
lensq := dot(V, V)
len_ := math.Sqrt(lensq)
cum_ := cum[seg-1]
W := minus(P, a)
gamma := dot(W, W)
beta := -2 * dot(W, V)
alpha := lensq
mu := k * k * lensq
nu := 2 * k * k * cum_ * len_
rho := k * k * cum_ * cum_
Ap := alpha - mu
Bp := beta - nu
Cp := gamma - rho
var minf float64 = -1
if math.Abs(Ap) < eps {
if math.Abs(Bp) < eps {
if Cp <= eps {
minf = 0
}
} else {
root := -Cp / Bp
if Bp > 0 {
if root >= -eps && math.Min(1.0, root) >= -eps {
minf = 0
}
} else {
start := math.Max(0.0, root)
if start <= 1+eps {
minf = start
}
}
}
} else {
D := Bp*Bp - 4*Ap*Cp
if D <= eps {
minf = 0
} else {
sd := math.Sqrt(D)
r1 := (-Bp - sd) / (2 * Ap)
r2 := (-Bp + sd) / (2 * Ap)
if r1 > r2 {
r1, r2 = r2, r1
}
minf_ := 2.0
if r1 >= -eps {
minf_ = 0
}
startr := math.Max(0.0, r2)
if startr <= 1+eps {
if startr < minf_ {
minf_ = startr
}
}
if minf_ <= 1+eps {
minf = minf_
}
}
}
if minf >= -eps/10 {
ff := minf
if ff < 0 {
ff = 0
} else if ff > 1 {
ff = 1
}
S := plus(a, scale(ff, V))
dd := cum_ + ff * len_
tt := dd / vs
fmt.Println("YES")
fmt.Printf("%.10f\n", tt)
fmt.Printf("%.10f %.10f %.10f\n", S.x, S.y, S.z)
return
}
}
fmt.Println("NO")
}
```