数据太弱

#include<cstdio>
#include<cstring>
using namespace std;
#define fo(a,b,c) for(int a=b;a<=c;a++)
#define go(a,b,c) for(int a=b;a>=c;a--)
int read(){
    int a=0,f=0;char c=getchar();
    for(;c<'0'||c>'9';c=getchar())if(c=='-')f=1;
    for(;c>='0'&&c<='9';c=getchar())a=a*10+c-'0';
    return f?-a:a;
}
int main(){
    for(int t=read();t;t--){
        int n=read(),x=read();
        fo(i,2,n-1)read();
        printf("%d\n",abs(x-read())>1);
    }
    return 0;
}