diff --git a/Number Theory/kdane's algorithm b/Number Theory/kdane's algorithm
new file mode 100644
index 0000000..ca889bb
--- /dev/null
+++ b/Number Theory/kdane's algorithm	
@@ -0,0 +1,28 @@
+// To find the maximum value of subarray
+#include <bits/stdc++.h>
+using namespace std;
+
+// Function to find the sum of subarray with maximum sum
+int maxSubarraySum(vector<int> &arr) {
+    int res = arr[0];
+  
+    // Outer loop for starting point of subarray
+      for(int i = 0; i < arr.size(); i++) {
+        int currSum = 0;
+      
+        // Inner loop for ending point of subarray
+        for(int j = i; j < arr.size(); j++) {
+            currSum = currSum + arr[j];
+          
+            // Update res if currSum is greater than res
+            res = max(res, currSum);
+        }
+    }
+    return res;
+}
+
+int main() {
+    vector<int> arr = {2, 3, -8, 7, -1, 2, 3};
+    cout << maxSubarraySum(arr);
+    return 0;
+}