package main
 
import (
	"bufio"
	"os"
	"fmt"
	"strconv"
	"strings"
)
 
func main() {
	reader := bufio.NewReader(os.Stdin)
 
	var t int
	fmt.Scanln(&t)
 
	for i := 0; i < t; i++ {
		var ans,owns int
		owns = 0
		ans = 0
		ss, _ := reader.ReadString('\n') 
		ss = strings.TrimSpace(ss)
 
		sss := strings.Split(ss," ")
		n,_ := strconv.Atoi(sss[0])
		k,_ := strconv.Atoi(sss[1])
 
		s, _ := reader.ReadString('\n') 
		s = strings.TrimSpace(s)
 
		ai := strings.Split(s," ")
 
		for j := 0; j < n; j++ {
			a, _ := strconv.Atoi(ai[j])
 
			if a >= k && a> 0{
				owns += a
			}else if a == 0 && owns > 0 {
				owns--
				ans++
			}
		}
		fmt.Println(ans)	
	}
}

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4
2 2
2 0
3 2
3 0 0
6 2
0 3 0 0 0 0
2 5
5 4