实心菱形

题目描述

打印 n 阶实心菱形

输入描述

输入一个整数n，n<=10

输出描述

输出 n 阶实心菱形 ， 占 2*n-1 行

样例输入

3

样例输出

  *
 ***
*****
 ***
  *

提交代码

/* students please write your program here*/
#include <iostream>

using namespace std;

int main() {
	int n;
	cin >> n;

	for (int i = 1; i <= n; i++) {

		for (int j = 1; j <= n - i; j++)
			cout << " " ;
		for (int j = 1; j <= 2 * i - 1; j++)
			cout << "*";
		
		cout <<endl;
	}
	for (int i = n - 1; i >= 1; i--) {
		for (int j = 1; j <= n - i; j++)
			cout << " ";
		for (int j = 1; j <= 2 * i - 1; j++)
			cout << "*";
		cout << endl;
	}
}