Viên Kim Cương

#include <stdio.h>
#include <stdlib.h>

int main()
{
    int n;
    printf("Nhap so nguyen n: ");
    scanf("%d",&n);
    if (n%2==0){
        printf("ban that ngheo!");
    } else {
    for(int i=1;i<=n;i++){
        if (i<=n/2+1){
        for (int j=i;j<n;j++){
                printf(" ");
        }
        for (int j=1;j<=(2*i-1);j++){
            printf("*");
        }
        } else{
        for(int j=1;j<i;j++){
            printf(" ");
        }
        for(int j=1;j<=(n*2-(2*i-1));j++){
            printf("*");
        }
        }
        printf("\n");
    }

    }
    return 0;
}