89 lines
2.1 KiB
Markdown
89 lines
2.1 KiB
Markdown
# Eliud's Eggs
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Welcome to Eliud's Eggs on Exercism's Julia Track.
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If you need help running the tests or submitting your code, check out `HELP.md`.
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## Introduction
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Your friend Eliud inherited a farm from her grandma Tigist.
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Her granny was an inventor and had a tendency to build things in an overly complicated manner.
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The chicken coop has a digital display showing an encoded number representing the positions of all eggs that could be picked up.
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Eliud is asking you to write a program that shows the actual number of eggs in the coop.
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The position information encoding is calculated as follows:
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1. Scan the potential egg-laying spots and mark down a `1` for an existing egg or a `0` for an empty spot.
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2. Convert the number from binary to decimal.
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3. Show the result on the display.
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## Example 1
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```text
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_ _ _ _ _ _ _
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|E| |E|E| | |E|
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```
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### Resulting Binary
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```text
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_ _ _ _ _ _ _
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|1|0|1|1|0|0|1|
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```
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### Decimal number on the display
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89
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### Actual eggs in the coop
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4
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## Example 2
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```text
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_ _ _ _ _ _ _
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| | | |E| | | |
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```
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### Resulting Binary
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```text
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_ _ _ _ _ _ _
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|0|0|0|1|0|0|0|
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```
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### Decimal number on the display
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8
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### Actual eggs in the coop
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1
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## Instructions
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Your task is to count the number of 1 bits in the binary representation of a number.
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## Restrictions
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Keep your hands off that bit-count functionality provided by your standard library!
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Solve this one yourself using other basic tools instead.
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## Source
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### Created by
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- @BNAndras
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### Based on
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Christian Willner, Eric Willigers - https://forum.exercism.org/t/new-exercise-suggestion-pop-count/7632/5 |