程序代码：

#include <iostream>

using  namespace std;

int main()
{
    int T, M, N, cnt, num;
   
    if(!(cin >> T) || T < 0) return 0;
   
    while(T--){
        if(!((cin >> M) && M > 0 && M < 1e7)) return 0;
       
        num = 0, cnt = 0;
        while(M--){
            if(!(cin >> N)) return 0;
           
            if(N == num) cnt++;
            else{
                if(cnt > 0){
                    cout << cnt << " " << num << " ";   
                }   
                num = N;
                cnt = 1;
            }
        }
        cout << cnt << " " << num << endl;   
    }
   
    return 0;
}

程序代码：

#include <stdio.h>

int main()
{
    int T, M, N, cnt, num;
  
    if(!scanf("%d", &T) || T < 0) return 0;
  
    while(T--){
        if(!(scanf("%d", &M) && M > 0 && M < 1e7)) return 0;
      
        num = 0, cnt = 0;
        while(M--){
            if(!scanf("%d", &N)) return 0;
          
            if(N == num) cnt++;
            else{
                if(cnt > 0){
                    printf("%d %d ", cnt, num);  
                }  
                num = N;
                cnt = 1;
            }
        }
        printf("%d %d\n", cnt, num);  
    }
  
    return 0;
}