题解 | #菱形图案#

#include <stdio.h>
int main() {
    int n;
    while (scanf("%d", &n) != EOF) { 
        for(int i = 0;i <= n;i++){
            for (int k = 0; k<n-i; k++) {
                printf(" ");
            }
            for (int j = 0; j<=i; j++) {
                printf("* ");
            }
            printf("\n");
        }
        //打印后小半部分
        for(int i = 0;i < n;i++){
            for (int k = 0; k<=i; k++) {
                printf(" ");
            }
            for (int j = 0; j<=n-i-1; j++) {
                printf("* ");
            }
            printf("\n");
        }
    }
    return 0;
}