题解 | 牛牛的字符菱形

#include <iostream>
using namespace std;
//字库
char ad12[][5]=
{
    {0,0,1,0,0},
    {0,1,1,1,0},
    {1,1,1,1,1},
    {0,1,1,1,0},
    {0,0,1,0,0}
};
int main() {
    char a,b;
    char m[5][5];
    int i=0,j=0;
    while (cin >> b ) { // 注意 while 处理多个 case
        for (j= 0;j<5;j++)
        {
            for (i= 0;i<5;i++)
            {
                if( ad12[i][j]==1)
                {
                   a = b;
                }
                else 
                {
                   a = ' ';
                }
                    if(i==4)
                {
                    cout << a  << endl;
                }
                    else
                {
                    cout << a ;
                }   
            }            
        }


        
    }
}