package main

import (
	"bufio"
	"fmt"
	"os"
)

func main() {
	in := bufio.NewReader(os.Stdin)
	out := bufio.NewWriter(os.Stdout)
	defer out.Flush()

	const maxSum = 10000
	oddSquares := make([]bool, maxSum+1)
	for i := 1; i*i <= maxSum; i += 2 {
		oddSquares[i*i] = true
	}

	var t int
	fmt.Fscan(in, &t)
	for ; t > 0; t-- {
		var n int
		fmt.Fscan(in, &n)
		sum, ans := 0, 0
		for i := 0; i < n; i++ {
			var x int
			fmt.Fscan(in, &x)
			sum += x
			if oddSquares[sum] {
				ans++
			}
		}
		fmt.Fprintln(out, ans)
	}
}