From f473b182a7d70170465abd229e594c3202f47ea2 Mon Sep 17 00:00:00 2001
From: Vanshika Rathod <85212298+vanshikaaaaaaaa@users.noreply.github.com>
Date: Mon, 14 Oct 2024 16:48:06 +0530
Subject: [PATCH] Created new file : Kadane's algo

added a file
---
 c++/Kadane's algo | 41 +++++++++++++++++++++++++++++++++++++++++
 1 file changed, 41 insertions(+)
 create mode 100644 c++/Kadane's algo

diff --git a/c++/Kadane's algo b/c++/Kadane's algo
new file mode 100644
index 0000000..af97a1e
--- /dev/null
+++ b/c++/Kadane's algo	
@@ -0,0 +1,41 @@
+// MAXIMUM SUBARRAY SUM ON AN ARRAY
+
+
+#include <bits/stdc++.h>
+using namespace std;
+
+long long maxSubarraySum(int arr[], int n) {
+    long long maxi = LONG_MIN; // maximum sum
+    long long sum = 0;
+
+    for (int i = 0; i < n; i++) {
+
+        sum += arr[i];
+
+        if (sum > maxi) {
+            maxi = sum;
+        }
+
+        // If sum < 0: discard the sum calculated
+        if (sum < 0) {
+            sum = 0;
+        }
+    }
+
+    // To consider the sum of the empty subarray
+    // uncomment the following check:
+
+    //if (maxi < 0) maxi = 0;
+
+    return maxi;
+}
+
+int main()
+{
+    int arr[] = { -2, 1, -3, 4, -1, 2, 1, -5, 4};
+    int n = sizeof(arr) / sizeof(arr[0]);
+    long long maxSum = maxSubarraySum(arr, n);
+    cout << "The maximum subarray sum is: " << maxSum << endl;
+    return 0;
+}
+