Minimum Bit Flips

A bit flip toggles a single bit from 0 to 1 or from 1 to 0. Given two integers start and goal, find the minimum number of bit flips needed to convert start into goal.

Examples
Input: [10,7]
Output: 3
Hints

Minimum Bit Flips

A bit flip toggles a single bit from 0 to 1 or from 1 to 0. Given two integers start and goal, find the minimum number of bit flips needed to convert start into goal.