HW7.2

#include <stdio.h>
#include <conio.h>

int main () {
    int i, j, v, n, m, k, u;    // :(((((
    printf("Enter number n: ");
    scanf("%d", &n);

    for (i = 0; i < n; ++i) {
        k = i % n;
        if(k == 0 || k == n-1) {
            m = 0;
            v = n;
        } else {
            m = n - i - 1;
            v = 1;

        }
        for (j = 0; j < m; ++j) {
            putchar(' ');
        }
        for (j = 0; j < v; ++j) {
            putchar('*');
        }
        putchar('\n');
    }
    printf("\n\n");
    n = 2 * n + 1;
    for (i = 0; i < n; ++i) putchar('*');
    putchar('\n');
    for (i = 1; i < n-1; ++i) {
        putchar('*');
        m = (n-4) - (i-1)*2;    // Sum of spaces in a line
        if (m == -1) {
            m = -1;
        } else if (m < 0) {
            m = -m - 2;
        }
        // Print edge space
        for (j = 0; j < (n-4-m)/2; ++j)
            putchar(' ');
        putchar('*');
        for (j = 0; j < m; ++j)
            putchar(' ');
        if (m != -1)
            putchar('*');
        for (j = 0; j < (n-4-m)/2; ++j)
            putchar(' ');
        putchar('*');
        putchar('\n');
    }
    for (i = 0; i < n; ++i) putchar('*');
    putchar('\n');

    m = 2 * n - 1;
    for (i = 0; i < m; ++i) {
        k = ((i<n) ? i : (m-i-1))*2+1;
        for (j = 0; j < (m-k)/2; ++j) {
            putchar(' ');
        }
        for (j = 0; j < k; ++j) {
            putchar('*');
        }
        putchar('\n');
    }
    getch();
    return 0;
}