From d7e84236606689731d460469e4497ae1f2128d4b Mon Sep 17 00:00:00 2001
From: sedaozkaya <155262567+sedaozkaya@users.noreply.github.com>
Date: Fri, 13 Mar 2026 09:59:18 +0300
Subject: [PATCH] Add weighted sampling function with optional replacement

---
 Week02/weighted_sedasengul_ozkaya.py | 12 ++++++++++++
 1 file changed, 12 insertions(+)
 create mode 100644 Week02/weighted_sedasengul_ozkaya.py

diff --git a/Week02/weighted_sedasengul_ozkaya.py b/Week02/weighted_sedasengul_ozkaya.py
new file mode 100644
index 00000000..ca1f4956
--- /dev/null
+++ b/Week02/weighted_sedasengul_ozkaya.py
@@ -0,0 +1,12 @@
+import random
+
+def weighted_srs(data, n, weights, with_replacement=False):
+    if with_replacement:
+        return random.choices(data, weights=weights, k=n)
+    
+    res, d, w = [], list(data), list(weights)
+    for _ in range(n):
+        idx = random.choices(range(len(d)), weights=w, k=1)[0]
+        res.append(d.pop(idx))
+        w.pop(idx)
+    return res