求助：排序问题

#include<iostream>
using namespace std;
void main()
{int i=0,n=0,j=0;
 cout<<"please input the number of the players"<<endl;
 cin>>n;
 int a[100]={0},b[100]={0},c[100]={0},t1(0),t2(0),t3(0),r[100]={0};
 
  for (i=0;i<n;i++)
 {cout<<"the "<<i+1<<" player score(3 items):";
  cin>>a[i]>>b[i]>>c[i];}
  cout<<"the rank is:"<<endl;  
  
  for(j=0;j<n;j++)
  {  
    for(i=0;i<n;i++)
  {
      
    if(a[i]!=t1)
    {if(a[i]>t1)
    {t1=a[i];
     
     r[j]=i+1;
    }
    }
   else
     if(b[i]!=t2)
     {if(b[i]>t2)
     {t2=b[i];
     
      r[j]=i+1;
     }
     }
   else
     if(c[i]!=t3)
     {if(c[i]>t3)
     {t3=c[i];
      
      r[j]=i+1;
     }
     }
      
  }
  t1=t2=t3=0;
  cout<<"the "<<r[j]<<" player: "<<a[r[j]-1]<<" "<<b[r[j]-1]<<" "<<c[r[j]-1]<<" "<<endl;
  for(i=r[j]-1;i<n;i++)
  a[i]=a[i+1];
  b[i]=b[i+1];
  c[i]=c[i+1];
 
  }
 
 
   
}
此程序运行不正确，后面数字的排序正常，但是序号会出错，不知道为什么。菜鸟求助。。