hex

Convert a Number to Hexadecimal (Easy 405)

Given an integer, write an algorithm to convert it to hexadecimal. For negative integer, two’s complement method is used.

Solution:

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If number is negative add 2^32 to it to get two's complement. Iterate over number, add mod 16 to result, and divide number by 16 each time. O(n) time, O(n) space.

Installation

Run make to run python and Swift files.