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import java.util.Scanner;
public class Main {
static int[] mat = new int[31];
public static void main(String args[]) {
Scanner sc = new Scanner(System.in);
mat[0] = 1;// 初始化第一个元素,也就是第一列的值全为1;
int n = 0;
while (sc.hasNext()) {
n = sc.nextInt();
triangle(n);
}
}
public static void triangle(int n) {
System.out.println(mat[0]);
mat[n - 1] = 1;// 从后面往前面
for (int i = 1; i < n; i++) {// 控制行数
mat[i] = 1;
for (int j = i - 1; j > 0; j--) {
mat[j] = mat[j] + mat[j - 1];
if (mat[j] < 0) {
return;
}
}
for (int j = 0; j <= i; j++) {
if (j == 0) {
System.out.print(mat[j]);
} else {
System.out.print(" " + mat[j]);
}
}
System.out.println();
}
System.out.println();
}
}
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原文地址:http://blog.csdn.net/hncu1306602liuqiang/article/details/46408971