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Prog/Бинарный поиск (Binary Search).md

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+#java #поиск
+```java
+public class BinarySearch {
+    public static int binarySearch(int[] arr, int target) {
+        int left = 0, right = arr.length - 1;
+        
+        while (left <= right) {
+            int mid = (left + right) / 2;
+
+            if (arr[mid] == target) return mid;
+            if (arr[mid] < target) left = mid + 1;
+            else right = mid - 1;
+        }
+
+        return -1; // элемент не найден
+    }
+}
+```