pattern20

patterns/pattern20.cpp

@@ -0,0 +1,32 @@
+#include <bits/stdc++.h>
+using namespace std;
+
+void print_diamond(int n) {
+    int spaces = 2 * n - 2;
+
+    for (int i = 1; i <= 2 * n - 1; i++) {
+        int stars = (i <= n) ? i : 2 * n - i;
+
+        for (int j = 1; j <= spaces; j++) {
+            cout << " ";
+        }
+
+        for (int j = 1; j <= stars; j++) {
+            cout << "* ";
+        }
+
+        cout << endl;
+
+        spaces = (i < n) ? spaces - 2 : spaces + 2;
+    }
+}
+
+int main() {
+    int n;
+
+    cin >> n;
+
+    print_diamond(n);
+
+    return 0;
+}