chu W

#include <stdio.h>
#include <stdlib.h>
int main()
{
    int cao, rong, n;
    //cao : chieu cao, rong : so chu v, n : do dai cua 1 chu v
    printf("Nhap chieu cao va so lan chu v: \n");
    scanf("%d%d", &cao, &rong);
    n = 2*cao-1;
    char s[n*rong];
    for (int j=0; j<cao; j++)
    {
        for (int i=0; i<=n*rong; i++) //gan tat ca la khoang trang
            s[i] = ' ';
        for (int i=0; i<rong; i++) //2 diem * cua 1 chu v, lap lai 'rong' lan
            s[j+(n-1)*i] = s[(n-1-j)+(n-1)*i] = '*';
        s[n*rong] = '\0';
        printf("%s\n",s);
    }
    return 0;
}