diff --git a/misc/likely.cpp b/misc/likely.cpp
index cee5c17..a0efa55 100644
--- a/misc/likely.cpp
+++ b/misc/likely.cpp
@@ -1,3 +1,4 @@
+#include <algorithm>
 #include <iostream>
 #include <sys/time.h>
 
@@ -84,8 +85,15 @@ int main()
     srand(time(nullptr));
     for (int i = 0; i < SIZE; i++)
     {
-        arr[i] = (rand() % (RANGE + 1)) + 0.499 * RANGE;
+        arr[i] = (rand() % (RANGE + 1));
     }
+    cout << "random dataset:" << endl;
+    func1(arr);
+    func2(arr);
+    func_likely(arr);
+    func_unlikely(arr);
+    sort(arr, arr + SIZE);
+    cout << "sorted dataset:" << endl;
     func1(arr);
     func2(arr);
     func_likely(arr);