From 9f4985f127a344f6a21faab207cfcef9da3eda18 Mon Sep 17 00:00:00 2001
From: specCon18 <steven.carpenter@skdevstudios.com>
Date: Thu, 30 May 2024 21:41:41 -0400
Subject: [PATCH] implemented kadanes

---
 src/kadanes.rs | 23 +++++++++++++++++++++++
 1 file changed, 23 insertions(+)
 create mode 100644 src/kadanes.rs

diff --git a/src/kadanes.rs b/src/kadanes.rs
new file mode 100644
index 0000000..f851cc8
--- /dev/null
+++ b/src/kadanes.rs
@@ -0,0 +1,23 @@
+use std::cmp;
+
+pub fn kadanes(arr: &[i32]) -> (i32, Vec<i32>) {
+    let mut max_so_far = i32::MIN;
+    let mut max_ending_here = 0;
+    let mut start_index = 0;
+    let mut end_index = 0;
+    let mut temp_start_index = 0;
+
+    for (i, &num) in arr.iter().enumerate() {
+        max_ending_here = cmp::max(max_ending_here + num, num);
+        if max_ending_here == num {
+            temp_start_index = i;
+        }
+        if max_so_far < max_ending_here {
+            max_so_far = max_ending_here;
+            start_index = temp_start_index;
+            end_index = i;
+        }
+    }
+
+    (max_so_far, arr[start_index..=end_index].to_vec())
+}