1034:打印数字图形

#include <iostream>
using namespace std;
int main()
{
    int n,i,j,k;
    while(cin>>n)
    {
        for(i=1;i<=n;i++)
    {
        for(k=1;k<=n-i;k++)
            cout<<" ";
        cout<<"1";
        if(i!=1)
        {
            for(j=2;j<=i;j++)
                cout<<j;
            for(j=i-1;j>1;j--)
                cout<<j;
            cout<<"1";
        }
        cout<<endl;
    }
    for(i=n-1;i>=1;i--)
    {
        for(k=1;k<=n-i;k++)
            cout<<" ";
        cout<<"1";
        if(i!=1)
        {
            for(j=2;j<=i;j++)
                cout<<j;
            for(j=i-1;j>1;j--)
                cout<<j;
            cout<<"1";
        }
        cout<<endl;
    }
    }

    return 0;
}