diff --git "a/leetcode3/\354\265\234\354\233\220\354\244\200/857. Minimum Cost to Hire K Workers.py" "b/leetcode3/\354\265\234\354\233\220\354\244\200/857. Minimum Cost to Hire K Workers.py"
new file mode 100644
index 00000000..8188c85f
--- /dev/null
+++ "b/leetcode3/\354\265\234\354\233\220\354\244\200/857. Minimum Cost to Hire K Workers.py"	
@@ -0,0 +1,33 @@
+import heapq
+
+
+class Solution:
+    def mincostToHireWorkers(
+        self,
+        quality: list[int],
+        wage: list[int],
+        k: int
+    ) -> float:
+        workers = []
+
+        for q, w in zip(quality, wage):
+            workers.append((w / q, q))
+
+        workers.sort()
+
+        heap = []
+        quality_sum = 0
+        ans = float("inf")
+
+        for ratio, q in workers:
+            heapq.heappush(heap, -q)
+            quality_sum += q
+
+            if len(heap) > k:
+                max_quality = -heapq.heappop(heap)
+                quality_sum -= max_quality
+
+            if len(heap) == k:
+                ans = min(ans, ratio * quality_sum)
+
+        return ans
diff --git a/leetcode3/935. Knight Dialer.py "b/leetcode3/\354\265\234\354\233\220\354\244\200/935. Knight Dialer.py"
similarity index 100%
rename from leetcode3/935. Knight Dialer.py
rename to "leetcode3/\354\265\234\354\233\220\354\244\200/935. Knight Dialer.py"