From 6a054a6c5b97796da89ddcb77ab807962f63e660 Mon Sep 17 00:00:00 2001
From: mary1715 <mariakerasovo@gmail.com>
Date: Tue, 13 Jan 2026 21:06:03 +0200
Subject: [PATCH 1/2] add Interpolation Search

---
 Searching/InterpolationSearch.java | 43 ++++++++++++++++++++++++++++++
 1 file changed, 43 insertions(+)
 create mode 100644 Searching/InterpolationSearch.java

diff --git a/Searching/InterpolationSearch.java b/Searching/InterpolationSearch.java
new file mode 100644
index 00000000..d3a27950
--- /dev/null
+++ b/Searching/InterpolationSearch.java
@@ -0,0 +1,43 @@
+public class InterpolationSearch {
+
+    /**
+     * Performs Interpolation Search on a sorted array.
+     *
+     * @param arr Sorted array of integers
+     * @param key Element to search
+     * @return index of key if found, otherwise -1
+     */
+    public static int interpolationSearch(int[] arr, int key) {
+
+        int low = 0;
+        int high = arr.length - 1;
+
+        while (low <= high && key >= arr[low] && key <= arr[high]) {
+
+            // Avoid division by zero
+            if (arr[high] == arr[low]) {
+                if (arr[low] == key) {
+                    return low;
+                } else {
+                    return -1;
+                }
+            }
+
+            // Estimate the position
+            int pos = low + ((key - arr[low]) * (high - low))
+                    / (arr[high] - arr[low]);
+
+            if (arr[pos] == key) {
+                return pos;
+            }
+
+            if (arr[pos] < key) {
+                low = pos + 1;
+            } else {
+                high = pos - 1;
+            }
+        }
+
+        return -1;
+    }
+}

From b600b0e27ff10632eec8d16082ecb0e08ab7a54e Mon Sep 17 00:00:00 2001
From: mary1715 <mariakerasovo@gmail.com>
Date: Tue, 13 Jan 2026 21:07:43 +0200
Subject: [PATCH 2/2] add Interpolation Search

---
 Searching/InterpolationSearch.java | 1 -
 1 file changed, 1 deletion(-)

diff --git a/Searching/InterpolationSearch.java b/Searching/InterpolationSearch.java
index d3a27950..0679e629 100644
--- a/Searching/InterpolationSearch.java
+++ b/Searching/InterpolationSearch.java
@@ -1,5 +1,4 @@
 public class InterpolationSearch {
-
     /**
      * Performs Interpolation Search on a sorted array.
      *