add pyramid pattern printing program

Author: 24f2002568

patterns/pyramid_pattern.py

@@ -0,0 +1,18 @@
+"""
+Prints a pyramid star pattern.
+
+Example (n = 5):
+    *
+   ***
+  *****
+ *******
+*********
+"""
+
+def pyramid(n: int) -> None:
+    for i in range(n):
+        print(" " * (n - i - 1) + "*" * (2 * i + 1))
+
+
+if __name__ == "__main__":
+    pyramid(5)