Add Implementation of Next Power of 2

Author: dungwinux

Math/NextPow2/nextpow2.cpp

@@ -0,0 +1,26 @@
+#include <iostream>
+
+/**
+ * nextpow2 - Implementation of Next Power of 2
+ */
+int nextpow2(int n)
+{
+    int c = 0;
+    if (n < 1)
+        return 1;
+    --n;
+    while (n)
+    {
+        ++c;
+        n >>= 1;
+    }
+    return 1 << c;
+}
+
+int main()
+{
+    int n;
+    std::cin >> n;
+    std::cout << nextpow2(n) << '\n';
+    return 0;
+}