diff --git a/others/decimal_to_hexadecimal.cpp b/others/decimal_to_hexadecimal.cpp
index 705f21ba4..a3e544f49 100644
--- a/others/decimal_to_hexadecimal.cpp
+++ b/others/decimal_to_hexadecimal.cpp
@@ -1,28 +1,34 @@
+/**
+ * @file
+ * @brief Convert decimal number to hexadecimal representation
+ */
+
 #include <iostream>
 
-using namespace std;
+/**
+ * Main program
+ */
+int main(void) {
+    int valueToConvert = 0;  // Holds user input
+    int hexArray[8];         // Contains hex values backwards
+    int i = 0;               // counter
+    char HexValues[] = "0123456789ABCDEF";
 
-int main(void)
-{
-	int valueToConvert = 0; //Holds user input
-	int hexArray[8];		//Contains hex values backwards
-	int i = 0;				//counter
-	char HexValues[] = "0123456789ABCDEF";
+    std::cout << "Enter a Decimal Value"
+              << std::endl;  // Displays request to stdout
+    std::cin >>
+        valueToConvert;  // Stores value into valueToConvert via user input
 
-	cout << "Enter a Decimal Value" << endl; //Displays request to stdout
-	cin >> valueToConvert;					 //Stores value into valueToConvert via user input
+    while (valueToConvert > 15) {             // Dec to Hex Algorithm
+        hexArray[i++] = valueToConvert % 16;  // Gets remainder
+        valueToConvert /= 16;
+        // valueToConvert >>= 4;  // This will divide by 2^4=16 and is faster
+    }
+    hexArray[i] = valueToConvert;  // Gets last value
 
-	while (valueToConvert > 15)
-	{										 //Dec to Hex Algorithm
-		hexArray[i++] = valueToConvert % 16; //Gets remainder
-		valueToConvert /= 16;
-	}
-	hexArray[i] = valueToConvert; //Gets last value
+    std::cout << "Hex Value: ";
+    while (i >= 0) std::cout << HexValues[hexArray[i--]];
 
-	cout << "Hex Value: ";
-	while (i >= 0)
-		cout << HexValues[hexArray[i--]];
-
-	cout << endl;
-	return 0;
+    std::cout << std::endl;
+    return 0;
 }