题解 | 牛牛的字符菱形

#include <iostream>
#include <cmath>
using namespace std;

int main() {
   char c;
   cin >> c;
   int line = 5;
   int midline = 2;
   for(int i = 0;i<5;i++)
   {
    int space = abs(i-midline);
    int chars = 5 - 2*space;
    for(int j = 0;j<space;j++)
    {
        cout << " ";
    }
    for(int k = 0;k<chars;k++){
        cout << c;
    }
    cout << endl; 
   }
}
// 64 位输出请用 printf("%lld")