binary search

searching/binarySearch.go

@@ -0,0 +1,45 @@
+package main
+
+import "fmt"
+//import "sort"
+
+func main() {
+	searchValue := 0
+
+	arr := [10]int{1, 5, 100, 0, -100, 15, 4, 102, 30, 1000}
+
+	tmp := 0
+
+	for i := 0; i < len(arr); i++ {
+        for j := 0; j < len(arr) - 1; j++ {
+            if arr[j] > arr[j + 1] {
+                tmp = arr[j]
+                arr[j] = arr[j + 1]
+                arr[j + 1] = tmp
+            }
+        }
+    }
+
+	left  := 0
+	right := len(arr) - 1
+
+	if right < left {
+		fmt.Println("Not found")
+		return
+	}
+
+	for ; left <= right ; {	
+		mid := (left + right) / 2
+
+		if arr[mid] == searchValue {
+			fmt.Println("Found at position: ", mid)
+			return
+		} else if arr[mid] < searchValue {
+			left = mid + 1
+		} else {
+			right = mid - 1
+		}	
+	}
+
+	fmt.Println("Not found")
+}