楊輝三角形
import java.util.Arrays;
public class San {
public static void main(String[] args) {
int [][]a=new int[10][];
for (int i=0;i<a.length;i++){
a[i]=new int[i+1];
}
for (int i=0;i<a.length;i++){
for (int j=0;j<a[i].length;j++){
if (j==0||j==a[i].length-1){
a[i][j]=1;
}else if (i>=2){
a[i][j]=a[i-1][j-1]+a[i-1][j];
}
}
System.out.println(Arrays.toString(a[i]));
}
}
}
