hdoj 2032

# include <stdio.h>
int main()
{
int n,a[31][31],i,j;
a[1][1]=1;
for (i=2;i<=30;i++)
{
for (j=2;j<i;j++)
a[i][j]=a[i-1][j-1]+a[i-1][j];
a[i][1]=a[i][j]=1;
}
while (scanf("%d",&n)+1)
{
for (i=1;i<=n;i++)
{
for (j=1;j<i;j++)
printf ("%d ",a[i][j]);
printf ("%d",a[i][j]);
putchar(‘\n‘);
}
putchar(‘\n‘);
}
return 0;
}