#include<cstdio>
#include<cstring>
#include<iostream>
#include<map>
#include<cmath>
//#include<windows.h>
#include<algorithm>
#include<set>
const double eps = 1e-1;
using namespace std;
typedef long long ll;
int k[90],J[90],s=1,e=1;
int main(){
    int t;
    while(scanf("%d",&t)!=EOF){
        while(t--){
            int n;
            scanf("%d",&n);
            for(int i=1;i<=n;i++)
                scanf("%d",&k[i]);
            for(int i=2;i<n;i++){
                if(k[i]>k[i-1]&&k[i]>k[i+1])J[e++] = i-1;
                else if(k[i]<k[i-1]&&k[i]<k[i+1])J[e++] = i-1;
            }

            if(k[1]!=k[2])s = 0,J[s] = 0;
            if(k[n]!=k[n-1])J[e++] = n-1;
            for(int i=s;i<e;i++){
                printf("%d",J[i]);
                if(i!=e-1)printf(" ");
                else puts("");
            }
            s = e = 1;
        }
    }

    return 0;
}

简单题 但是WA了好几次 最后发现是因为多组输入而原程序是单组输入的原因。。。