1027 打印沙漏 (20 分)

// 1027 打印沙漏 (20 分).cpp : 此文件包含 "main" 函数。程序执行将在此处开始并结束。
//

#include <iostream>
#include <math.h>
using namespace std;
int main(){
    int i;
    cin >> i;
    char s;
    cin >> s;
    int num_total = 0;
    int number_print = 0;
    //算出第一行的个数
    for (int j = 1; j < i / 2 - 1 ; j++) {
        num_total = j * j * 2 - 1;
        if (i <= num_total)
            number_print++;
    }
    if (!number_print) {
        cout << s << endl;
        cout << i - 1;
        return 0;
    }
    number_print = sqrt(number_print) + 1;//包含1的层数
    //正序打印
    for (int i = number_print - 1; i >= 0; i--) {
        for (int j = 0; j < 2 * (i) + 1; j++){
            j == 2 * (i) ? cout << s << endl : cout << s;
        }
        if (i == 0)
            break;
        for (int line = 0; line < number_print - i; line++) {
            cout << " ";
        }
    }
    //逆序打印
    int number_pace = number_print - 1;
    for (int i = 1; i < number_print; i++) {
        for (int line = 1; line < number_pace; line++) {
            cout << " ";
        }
        for (int j = 0; j < 2 * i + 1; j++) {
             cout << s;
        }
        if (i != number_print - 1)
            cout << endl;
        number_pace--;
    }
    //计算差值
    int size = number_print * number_print * 2 - 1;
    if(i - size)
        cout << "\n" << i - size;
}