题目

import java.util.Scanner;public class Main {public static void main(String[] args) {Scanner sc = new Scanner(System.in);int t = sc.nextInt();sc.nextLine();while(t-- > 0) {int n = sc.nextInt();sc.nextLine();int[] a = new int[n];for(int i=0;i<n;i++)a[i] = sc.nextInt();int sum = 0;int res = 0;for(int i=0;i<n;i++) {if(a[i] == 0) {res++;a[i] = 1;}sum+=a[i];}if(sum == 0) {for(int i=0;i<n;i++) {if(a[i] != -1) {res++;break;}}}System.out.println(res);}sc.close();}
}

import java.util.Scanner;public class Main {public static void main(String[] args) {Scanner sc = new Scanner(System.in);int t = sc.nextInt();sc.nextLine();while(t!=0) {int n = sc.nextInt();sc.nextLine();int[] a = new int[n];for(int i=0;i<n;i++)a[i] = sc.nextInt();int sum = 0;int num = 0;for(int i=0;i<n;i++) {if(a[i] == 0) {num++;a[i] = 1;}sum+=a[i];}if(sum == 0) {for(int i=0;i<n;i++) {if(a[i]!=-1) {num++;break;}}}System.out.println(num);t--;}sc.close();}
}