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merge into: paulusgaming:main
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paulusgaming:main paulusgaming:assignment9_js paulusgaming:assignment8_js paulusgaming:assignment7_js paulusgaming:assignment6_js paulusgaming:assignment5_js paulusgaming:assignment1_js paulusgaming:assignment4_js paulusgaming:assignment3_js paulusgaming:assignment2_js
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pull from: paulusgaming:assignment6_js
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paulusgaming:assignment9_js paulusgaming:assignment8_js paulusgaming:assignment7_js paulusgaming:assignment6_js paulusgaming:assignment5_js paulusgaming:assignment1_js paulusgaming:assignment4_js paulusgaming:assignment3_js paulusgaming:assignment2_js paulusgaming:main

1 Commits
main ... assignment

Author SHA1 Message Date
paulusgaming
7a3dd6bcde Assignment on my birthday 2022-12-06 17:26:38 +01:00
4 changed files with 42 additions and 7 deletions
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4
README.md
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@@ -1 +1,5 @@
# Advent of Code 2022 - Assignment6_javascript
This repository contains answers to the assignments of Advent of Coding 2022
## References
- https://stackoverflow.com/questions/28207610/checking-if-the-characters-in-a-string-are-all-unique

4
index.html
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@@ -8,7 +8,9 @@
<body>
<p>Assignment:</p>
<textarea rows="15" cols="50" id="assignment"></textarea>
<input type="checkbox" id="algorithm" />
<label for="algorithm">Search for message marker?</label>
<p>Answer:</p>
<div id="answer">Provide input first</div>
<script src="script.js"></script>

37
script.js
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@@ -1,12 +1,16 @@
const ASSIGNMENT = 'assignment';
const ANSWER = 'answer';
const ALGORITHM_CHECKBOX = 'algorithm';
const MARKER_DISTINCT_CHARACTERS = 4;
const MESSAGE_DISTINCT_CHARACTERS = 14;
const NEWLINE_CHARACTER = '\n';
/**
* Main function
*/
window.onload = function() {
document.getElementById(ASSIGNMENT).addEventListener("input", calculateAnswer);
document.getElementById(ASSIGNMENT).addEventListener("input", calculateAnswer);
document.getElementById(ALGORITHM_CHECKBOX).addEventListener("click", calculateAnswer);
}
/**
@@ -15,7 +19,9 @@ window.onload = function() {
*/
function calculateAnswer(event) {
console.info("Calculating answer for input...");
let answer = algorithm(event.target.value);
let assignment = document.getElementById(ASSIGNMENT).value;
let distinctCharacters = (document.getElementById(ALGORITHM_CHECKBOX).checked)? MESSAGE_DISTINCT_CHARACTERS: MARKER_DISTINCT_CHARACTERS;
let answer = algorithm(assignment, distinctCharacters);
document.getElementById(ANSWER).innerText = answer;
}
@@ -25,9 +31,28 @@ function calculateAnswer(event) {
* @param assignment the input from the assignment.
* @return string the answer
*/
function algorithm(assignment) {
let lines = assignment.trim().split(NEWLINE_CHARACTER);
console.info("Linecount:" + lines.length);
function algorithm(assignment, distinctCharacters) {
let signal = assignment.trim();
let marker = assignment.substring(0,distinctCharacters);
// TODO: implement assignment
for(let i=distinctCharacters; i<signal.length; i++) {
if(containsDistinctCharacters(marker)) {
console.debug("Found marker after:" + i + " characters");
return "Marker found after processing: " + i + " characters.";
}
marker = marker.substring(1, distinctCharacters) + assignment[i];
}
return "No marker found.";
}
/**
* Check if string only contains distinct characters.
* @param String string the string to check
* @return true, if string contains only distinct characters
*/
function containsDistinctCharacters(string) {
console.debug("Check marker: " + string);
return new Set(string).size == string.length;
}

4
style.css
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@@ -6,6 +6,10 @@ body {
font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Oxygen, Ubuntu, Cantarell, 'Open Sans', 'Helvetica Neue', sans-serif;
}
textarea {
display: block;
}
#answer {
color: purple
}