Pola 3

#include <cstdio>
using namespace std;

int main() {
    int N, i, j;
    char space_char = ' ';
    int full, half, quarter, ibatas1, ibatas2;

    printf("Nilai N : ");
    scanf("%d", &N);
    full = N;
    half = N/2;
    quarter = N/4;

    for (i=0; i<full; i++) {
        ibatas1 = i%half;
        ibatas2 = half-ibatas1-1;
        if (i%quarter==0) {
            if (space_char=='*') {
                space_char=' ';
            } else {
                space_char='*';
            }
        }
        for (j=0; j<half; j++){
            if (j==ibatas1 || j==ibatas2) {
                printf("#");
            } else if ( (j > ibatas1 && j < ibatas2) ||
                        (j > ibatas2 && j < ibatas1))
            {
                printf("%c", space_char);
            } else {
                printf(" ");
            }
        }
        printf("\n");
    }
    return 0;
}