added simp changes

Swap 2 numbers in mini

@@ -0,0 +1,27 @@
+#include <iostream>
+
+using namespace std;
+
+int main()
+
+{
+
+    int a = 5, b = 10, temp;
+
+    cout << "Before swapping." << endl;
+
+    cout << "a = " << a << ", b = " << b << endl;
+
+    temp = a;
+
+    a = b;
+
+    b = temp;
+
+    cout << "\nAfter swapping." << endl;
+
+    cout << "a = " << a << ", b = " << b << endl;
+
+    return 0;
+
+}