Binary Watch
Explore how to apply the backtracking algorithm to solve the binary watch problem. You will learn to generate all valid times based on a number of LEDs lit, understanding bit manipulation and constraints on hour and minute formatting.
We'll cover the following...
We'll cover the following...
Statement
A binary watch has 4 LEDs for displaying hours (ranging from 0 to 11) and 6 for displaying minutes (ranging from 0 to 59). Each LED can be on (1) or off (0), with the least significant bit on the right. For example, the binary watch below reads “9:22.”
Given an integer enabled, which represents the number of LEDs currently turned on, return all possible times that the watch could display. You may return the answer in any order. ...