Decimal to Hexadecimal

Problem: Convert the given decimal whole number to hexadecimal.

Example:


decimal_to_hex(32)
20

decimal_to_hex(31)
1F

decimal_to_hex(6543)
198F

Solution in Python:

def decimal_to_hex(n):
    """
    Author: Mayur P Srivastava
    """

    if n == 0:

        return "0";

    hex_str = "";

    while n > 0:

        c = n % 16

        n = n // 16

        if c > 9:

            c = chr(65 + c - 10)

        else:

            c = str(c)

        hex_str = c + hex_str

    return hex_str

Concepts Learned: Single loops, number systems