题解 | #菱形图案#

#include <stdio.h>

int main() {
    int n;
    while (scanf("%d", &n) != EOF) {
        for (int i = n; i >= 0; i--)
        {
            for (int j = 0; j < i; j++)
            {
                printf(" ");
            }
            for (int j = 0; j <= n - i; j++)
                printf("* ");
            printf("\n");
        }
        for (int i = n; i > 0; i--)
        {
            for (int j = 0; j<=n - i; j++)
                printf(" ");
            for (int j = 0; j <i; j++)
                printf("* ");
            printf("\n");
        }
    }
    return 0;
}