For problem statement at 0-999/100-199/170-179/170/problemA.txt this is a correct solution, but verifier at 0-999/100-199/170-179/170/verifierA.go ends with case 1 mismatch
expected:
-1 -1 -1 -1
-1 -1 -1 -1
-1 -1 -1 -1
-1 -1 -1 -1
-1 -1 -1 -1
got:
0.0 0.0 57.3 15.7
-1 -1 -1 -1
0.0 15.7 44.5 35.3
-1 -1 -1 -1
0.0 35.3 4.6 49.7
exit status 1 can you fix the verifier? package main

import (
	"fmt"
	"math/rand"
	"time"
)

type Rect struct {
	w, h int
	id   int
}

type Placed struct {
	id     int
	x1, y1 float64
	x2, y2 float64
	rot    bool
}

func main() {
	rand.Seed(time.Now().UnixNano())
	var w, h int
	if _, err := fmt.Scan(&w, &h); err != nil {
		return
	}
	var n int
	if _, err := fmt.Scan(&n); err != nil {
		return
	}

	rects := make([]Rect, n)
	for i := 0; i < n; i++ {
		fmt.Scan(&rects[i].w, &rects[i].h)
		rects[i].id = i
	}

	placed := make([]Placed, n)
	for i := 0; i < n; i++ {
		placed[i] = Placed{id: i, x1: -1, y1: -1, x2: -1, y2: -1}
	}

	if n > 0 {
		var x float64 = 0
		var y float64 = 0
		var currentH float64 = 0

		for i := 0; i < n; i++ {
			r := rects[i]
			rot := rand.Intn(2) == 1
			rw := float64(r.w)
			rh := float64(r.h)
			if rot {
				rw, rh = rh, rw
			}

			scale := 0.1 + rand.Float64()*1.9
			rw *= scale
			rh *= scale

			rw = float64(int(rw*10)) / 10.0
			rh = float64(int(rh*10)) / 10.0

			if rw <= 0 || rh <= 0 {
				continue
			}

			if x+rw > float64(w) {
				x = 0
				y += currentH
				currentH = 0
			}

			if y+rh > float64(h) {
				continue
			}

			placed[i] = Placed{
				id:  r.id,
				x1:  x,
				y1:  y,
				x2:  x + rw,
				y2:  y + rh,
				rot: rot,
			}

			x += rw
			if rh > currentH {
				currentH = rh
			}
		}
	}

	for i := 0; i < n; i++ {
		p := placed[i]
		if p.x1 == -1 {
			fmt.Println("-1 -1 -1 -1")
		} else {
			fmt.Printf("%.1f %.1f %.1f %.1f\n", p.x1, p.y1, p.x2, p.y2)
		}
	}
}