diff --git a/src/Searches/BinarySearch.sol b/src/Searches/BinarySearch.sol
index b5cb184..96369d7 100644
--- a/src/Searches/BinarySearch.sol
+++ b/src/Searches/BinarySearch.sol
@@ -27,22 +27,17 @@ contract BinarySearch {
     }
 
     // returns the index position of the value in the array
-    function printResult() public view returns (uint256 result) {
+    function printResult() public view returns (int256 result) {
         uint256 minimum = 0;
-        uint256 maximum = _nums.length - 1;
+        uint256 maximum = _nums.length;
 
-        while (minimum <= maximum) {
-            uint256 middle = (minimum + maximum) / 2;
+        while (minimum < maximum) {
+            uint256 middle = minimum + (maximum - minimum) / 2;
             uint256 currentElement = _nums[middle];
             if (currentElement < value) {
                 minimum = middle + 1;
-            } 
-            else if (currentElement > value) {
-                if (middle == 0) {
-                    maximum = 0;
-                } else {
-                    maximum = middle - 1;
-                }
+            } else if (currentElement > value) {
+                maximum = middle;
             } else {
                 result = int256(middle);
                 // return the index position of the value in the array
diff --git a/src/Searches/test/BinarySearch.t.sol b/src/Searches/test/BinarySearch.t.sol
index 8acca18..08854ff 100644
--- a/src/Searches/test/BinarySearch.t.sol
+++ b/src/Searches/test/BinarySearch.t.sol
@@ -22,8 +22,15 @@ contract BinarySearchTest is Test {
     /// @dev Test `BinarySearch`
 
     function test_BinarySearch() external {
-        uint searchedIndex = bs.printResult();
-        uint expectedIndex = 9;
+        int searchedIndex = bs.printResult();
+        int expectedIndex = 9;
+        assertEq(expectedIndex, searchedIndex);
+    }
+
+    function test_BinarySearchNotFound() external {
+        bs.setValue(21);
+        int searchedIndex = bs.printResult();
+        int expectedIndex = -1;
         assertEq(expectedIndex, searchedIndex);
     }
 }