diff --git a/src/problem/mod.rs b/src/problem/mod.rs
index c2856a2..ca68ad9 100644
--- a/src/problem/mod.rs
+++ b/src/problem/mod.rs
@@ -171,4 +171,5 @@ mod p46_permutations;
 mod p39_combination_sum;
 mod p22_generate_parentheses;
 mod p79_word_search;
-mod p108_convert_sorted_array_to_binary_search_tree;
\ No newline at end of file
+mod p108_convert_sorted_array_to_binary_search_tree;
+mod p53_maximum_subarray;
\ No newline at end of file
diff --git a/src/problem/p53_maximum_subarray.rs b/src/problem/p53_maximum_subarray.rs
new file mode 100644
index 0000000..b7879f1
--- /dev/null
+++ b/src/problem/p53_maximum_subarray.rs
@@ -0,0 +1,32 @@
+/**
+ * [53] Maximum Subarray
+ */
+pub struct Solution {}
+
+
+// submission codes start here
+
+impl Solution {
+    pub fn max_sub_array(nums: Vec<i32>) -> i32 {
+        let mut pre = 0;
+        let mut result = nums[0];
+
+        for i in nums {
+            pre = i.max(pre + i);
+            result = result.max(pre);
+        }
+
+        result
+    }
+}
+
+// submission codes end
+
+#[cfg(test)]
+mod tests {
+    use super::*;
+
+    #[test]
+    fn test_53() {
+    }
+}