题解 | 牛牛的字符菱形

#include <stdio.h>

int main()
{
    char a = 0;
    scanf("%c", &a);
    int i, j, k, b = 3;
    for (i = 0; i < b; i++)
    {
        for (j = 0; j < b-i-1; j++)printf(" ");
        for (k = 0; k < 2 * (i + 1) - 1; k++)printf("%c", a);
        printf("\n");
    }
    for (i = 1; i < b; i++)
    {
        for (k = 0; k < i; k++) printf(" ");
        for (j = 0; j < 2*(b - i)-1; j++)printf("%c", a);
        printf("\n");
    }
    return 0;
}