Merge pull request #42 from alokrajpd/main

diamond.cpp file modified

loops/diamond_pattern/main.cpp

@@ -2,7 +2,67 @@
 using namespace std;
 
 void diamond_pattern(int n){
- //Enter your code here
+ if (n % 2 == 0 || n <= 1)
+ cout << "-1" << endl;
+ else
+ {
+ int iF, lf, z = 0;
+ for (int i = 0; i < n / 2; i++) // first half
+ {
+ iF = 0;
+ lf = 0;
+ for (int j = 0; j < n; j++)
+ {
+ if (iF < n / 2 - i)
+ {
+ iF++;
+ cout << " ";
+ }
+ else if (lf < 2 * i + 1)
+ {
+ lf++;
+ cout << "*";
+ }
+ else
+ {
+ cout << " ";
+ }
+ }
+ for (int d = 0; d < i; d++)
+ {
+ cout << " ";
+ }
+ cout << endl;
+ }
+ for (int i = n / 2 + 1; i > 0; i--) // remaining
+ {
+ iF = n;
+ lf = n;
+ for (int j = n; j > 0; j--)
+ {
+ if (iF > n / 2 + i)
+ {
+ iF--;
+ cout << " ";
+ }
+ else if (lf > 2 * z)
+ {
+ lf--;
+ cout << "*";
+ }
+ else
+ {
+ cout << " ";
+ }
+ }
+ for (int d = i - 1; d > 0; d--)
+ {
+ cout << " ";
+ }
+ cout << endl;
+ z++;
+ }
+ }
 }
 int main()
 {