题解

题解：

注意“行数是列数的50%（四舍五入）”

 1 #include<iostream>
 2 using namespace std;
 3 int main()
 4 {
 5     int n;
 6     char c;
 7     cin >> n >> c;
 8     int n1;
 9     if (n % 2 == 0)
10         n1 = n / 2 - 2;
11     else
12         n1 = n / 2 - 1;
13     for (int i = 0; i < n; i++)
14     {
15         cout << c;
16     }
17     cout << endl;
18     for (int i = 0; i < n1; i++)
19     {
20         cout << c;
21         for (int j = 0; j < (n - 2); j++)
22         {
23             cout << " ";
24         }
25         cout << c;
26         cout << endl;
27     }
28     for (int i = 0; i < n; i++)
29     {
30         cout << c;
31     }
32     cout << endl;
33     return 0;
34 }