For problem statement at 1000-1999/1500-1599/1540-1549/1545/problemA.txt this is a correct solution, but verifier at 1000-1999/1500-1599/1540-1549/1545/verifierA.go ends with All tests passed can you fix the verifier? package main

import (
	"bufio"
	"fmt"
	"os"
	"sort"
	"strconv"
)

func main() {
	scanner := bufio.NewScanner(os.Stdin)
	scanner.Split(bufio.ScanWords)
	out := bufio.NewWriter(os.Stdout)
	defer out.Flush()

	nextInt := func() int {
		scanner.Scan()
		res, _ := strconv.Atoi(scanner.Text())
		return res
	}

	if !scanner.Scan() {
		return
	}
	t, _ := strconv.Atoi(scanner.Text())

	var cntEven [100005]int
	var cntOdd [100005]int

	for tc := 0; tc < t; tc++ {
		n := nextInt()
		a := make([]int, n)

		for i := 0; i < n; i++ {
			a[i] = nextInt()
			if i%2 == 0 {
				cntEven[a[i]]++
			} else {
				cntOdd[a[i]]++
			}
		}

		sort.Ints(a)

		for i := 0; i < n; i++ {
			if i%2 == 0 {
				cntEven[a[i]]--
			} else {
				cntOdd[a[i]]--
			}
		}

		possible := true
		for i := 0; i < n; i++ {
			if cntEven[a[i]] != 0 || cntOdd[a[i]] != 0 {
				possible = false
			}
			cntEven[a[i]] = 0
			cntOdd[a[i]] = 0
		}

		if possible {
			fmt.Fprintln(out, "YES")
		} else {
			fmt.Fprintln(out, "NO")
		}
	}
}