Create fast_power_iterative.cpp

algorithms/Maths/fast_power/fast_power_iterative.cpp

@@ -0,0 +1,29 @@
+#include<bits/stdc++.h>
+using namespace std;
+
+int power(int x, int y)
+{
+	int res = 1;     // Initialize result 
+
+    while (y > 0) 
+    { 
+        // If y is odd, multiply x with result 
+        if (y & 1) 
+            res = res*x; 
+
+        // y must be even now 
+        y = y>>1; // y = y/2 
+        x = x*x;  // Change x to x^2 
+    } 
+    return res; 
+}
+
+
+int main()
+{
+	int x = 2, y = 10;
+
+	cout<<power(x, y);
+
+  return 0;
+}