在循环中输入数组的内容总被下一次覆盖

#include <iostream>
#include <string>
using namespace std;
string name[50],sex[50],num[50],department[50],sport[50],score[50];
int n ;
void sporter_add()
{

    int i;
    cout<<"请输入比赛共有多少人:";
    cin>>n;
    for(i=0;i<n;i++)
    {
        cout<<"请输入运动员姓名"<<i+1<<":";
        cin>>name[i];
        cout<<"请输入运动员性别"<<i+1<<":";
        cin>>sex[i];
        cout<<"请输入运动员编号"<<i+1<<":";
        cin>>num[i];
         cout<<"请输入运动员所在学院"<<i+1<<":";
        cin>>department[i];
        cout<<"请输入运动员项目"<<i+1<<":";
        cin>>sport[i];
        cout<<"请输入运动员成绩"<<i+1<<":";
        cin>>score[i];
        cout<<endl;
    }
}

int main()
{
    while(1)
    {
    sporter_add();        
    }
    return 0;
}