diff --git a/maximum-product-subarray/DaleSeo.rs b/maximum-product-subarray/DaleSeo.rs
new file mode 100644
index 0000000000..ac0097211f
--- /dev/null
+++ b/maximum-product-subarray/DaleSeo.rs
@@ -0,0 +1,15 @@
+// TC: O(n)
+// SC: O(1)
+impl Solution {
+    pub fn max_product(nums: Vec<i32>) -> i32 {
+        let mut ans = nums[0];
+        let (mut max, mut min) = (1, 1);
+        for num in nums {
+            let candidates = [max * num, min * num, num];
+            max = *candidates.iter().max().unwrap();
+            min = *candidates.iter().min().unwrap();
+            ans = ans.max(max);
+        }
+        ans
+    }
+}