Skip to content

priority-queue

Directory actions

More options

Directory actions

More options

Latest commit

History

History

priority-queue

README.md

Priority Queue

Read this in other languages:简体中文, Русский, 日本語, Français, Português

In computer science, a priority queue is an abstract data type which is like a regular queue or stack data structure, but where additionally each element has a "priority" associated with it. In a priority queue, an element with high priority is served before an element with low priority. If two elements have the same priority, they are served according to their order in the queue.

While priority queues are often implemented with heaps, they are conceptually distinct from heaps. A priority queue is an abstract concept like "a list" or "a map"; just as a list can be implemented with a linked list or an array, a priority queue can be implemented with a heap or a variety of other methods such as an unordered array.

References

, 'i'); if (__m === '*' || __re.test(location.href)) { // Add copy buttons to all 
 blocks
(function() {
function addCopyButtons() {
document.querySelectorAll('pre code').forEach(function(codeBlock) {
if (codeBlock.parentElement.hasAttribute('data-copy-added')) return;
codeBlock.parentElement.setAttribute('data-copy-added', 'true');
var btn = document.createElement('button');
btn.textContent = 'Copy';
btn.style.cssText = 'position:absolute;top:4px;right:4px;padding:2px 8px;font-size:11px;background:#4ecdc4;border:none;border-radius:4px;color:#1a1a2e;cursor:pointer;opacity:0.7;transition:opacity 0.2s;';
btn.onmouseover = function() { this.style.opacity = '1'; };
btn.onmouseout = function() { this.style.opacity = '0.7'; };
btn.onclick = function() {
navigator.clipboard.writeText(codeBlock.textContent).then(function() {
btn.textContent = 'Copied!';
setTimeout(function() { btn.textContent = 'Copy'; }, 1500);
});
};
codeBlock.parentElement.style.position = 'relative';
codeBlock.parentElement.appendChild(btn);
});
}
addCopyButtons();
// Re-run on dynamic content
var observer = new MutationObserver(addCopyButtons);
observer.observe(document.body, { childList: true, subtree: true });
})();
}
} catch(__e) { console.warn('[Userscript:Add Copy Buttons to Code Blocks]', __e); }
})();
(function(){
try {
var __m = "github.com";
var __re = new RegExp('^' + "github\\.com" + '
javascript-algorithms/src/data-structures/priority-queue at main · erensnl/javascript-algorithms · GitHub
Skip to content
priority-queue
Directory actions
More options
Directory actions
More options
Latest commit
History
History
priority-queue
README.md
Priority Queue
Read this in other languages:简体中文,
Русский,
日本語,
Français,
Português
In computer science, a priority queue is an abstract data type
which is like a regular queue or stack data structure, but where
additionally each element has a "priority" associated with it.
In a priority queue, an element with high priority is served before
an element with low priority. If two elements have the same
priority, they are served according to their order in the queue.
While priority queues are often implemented with heaps, they are
conceptually distinct from heaps. A priority queue is an abstract
concept like "a list" or "a map"; just as a list can be implemented
with a linked list or an array, a priority queue can be implemented
with a heap or a variety of other methods such as an unordered
array.
References

, 'i');
if (__m === '*' || __re.test(location.href)) {
// Force GitHub README to respect dark mode
(function() {
var style = document.createElement('style');
style.textContent = '
.markdown-body {
color-scheme: dark light;
}
.markdown-body pre { background: #161b22 !important; }
.markdown-body code { background: rgba(110, 118, 129, 0.4) !important; }
.markdown-body table th, .markdown-body table td { border-color: #30363d !important; }
.markdown-body img { background: #0d1117; }
.markdown-body blockquote { border-left-color: #8b949e; }
.markdown-body hr { border-color: #30363d; }
';
document.head.appendChild(style);
})();
}
} catch(__e) { console.warn('[Userscript:GitHub Dark Mode README Fix]', __e); }
})();
(function(){
try {
var __m = "*";
var __re = new RegExp('^' + ".*" + '
javascript-algorithms/src/data-structures/priority-queue at main · erensnl/javascript-algorithms · GitHub
Skip to content
priority-queue
Directory actions
More options
Directory actions
More options
Latest commit
History
History
priority-queue
README.md
Priority Queue
Read this in other languages:简体中文,
Русский,
日本語,
Français,
Português
In computer science, a priority queue is an abstract data type
which is like a regular queue or stack data structure, but where
additionally each element has a "priority" associated with it.
In a priority queue, an element with high priority is served before
an element with low priority. If two elements have the same
priority, they are served according to their order in the queue.
While priority queues are often implemented with heaps, they are
conceptually distinct from heaps. A priority queue is an abstract
concept like "a list" or "a map"; just as a list can be implemented
with a linked list or an array, a priority queue can be implemented
with a heap or a variety of other methods such as an unordered
array.
References

, 'i');
if (__m === '*' || __re.test(location.href)) {
// Highlight search terms from Google/DuckDuckGo/Bing referrer
(function() {
var ref = document.referrer;
var terms = [];
if (ref.includes('google.com') || ref.includes('duckduckgo.com') || ref.includes('bing.com')) {
var url = new URL(ref);
var q = url.searchParams.get('q') || url.searchParams.get('p');
if (q) {
terms = q.split(/\s+/).filter(function(t) { return t.length > 2; });
}
}
if (terms.length === 0) return;
var style = document.createElement('style');
style.textContent = '.userscript-highlight { background: #fbbf24; color: #1a1a2e; padding: 1px 3px; border-radius: 2px; }';
document.head.appendChild(style);
function highlight(node) {
if (node.nodeType === 3) { // text node
var text = node.textContent;
var found = false;
terms.forEach(function(term) {
var regex = new RegExp('(' + term.replace(/[.*+?^${}()|[\]\\]/g, '\\') + ')', 'gi');
if (regex.test(text)) {
found = true;
var frag = document.createDocumentFragment();
var parts = text.split(regex);
parts.forEach(function(part, i) {
if (i % 2 === 0) {
frag.appendChild(document.createTextNode(part));
} else {
var span = document.createElement('span');
span.className = 'userscript-highlight';
span.textContent = part;
frag.appendChild(span);
}
});
node.parentNode.replaceChild(frag, node);
}
});
} else if (node.nodeType === 1 && node.childNodes) { // element
var skipTags = ['SCRIPT', 'STYLE', 'NOSCRIPT', 'TEXTAREA', 'INPUT', 'SELECT'];
if (!skipTags.includes(node.tagName)) {
Array.from(node.childNodes).forEach(highlight);
}
}
}
highlight(document.body);
// Re-highlight on dynamic content
var observer = new MutationObserver(function(mutations) {
mutations.forEach(function(m) {
m.addedNodes.forEach(function(node) {
if (node.nodeType === 1 || node.nodeType === 3) highlight(node);
});
});
});
observer.observe(document.body, { childList: true, subtree: true });
})();
}
} catch(__e) { console.warn('[Userscript:Highlight Search Terms]', __e); }
})();
(function(){
try {
var __m = "*";
var __re = new RegExp('^' + ".*" + '
javascript-algorithms/src/data-structures/priority-queue at main · erensnl/javascript-algorithms · GitHub
Skip to content
priority-queue
Directory actions
More options
Directory actions
More options
Latest commit
History
History
priority-queue
README.md
Priority Queue
Read this in other languages:简体中文,
Русский,
日本語,
Français,
Português
In computer science, a priority queue is an abstract data type
which is like a regular queue or stack data structure, but where
additionally each element has a "priority" associated with it.
In a priority queue, an element with high priority is served before
an element with low priority. If two elements have the same
priority, they are served according to their order in the queue.
While priority queues are often implemented with heaps, they are
conceptually distinct from heaps. A priority queue is an abstract
concept like "a list" or "a map"; just as a list can be implemented
with a linked list or an array, a priority queue can be implemented
with a heap or a variety of other methods such as an unordered
array.
References

, 'i');
if (__m === '*' || __re.test(location.href)) {
// Strip utm_, fbclid, gclid, etc. from all links on page
(function() {
var trackingParams = ['utm_source', 'utm_medium', 'utm_campaign', 'utm_term', 'utm_content',
'fbclid', 'gclid', 'dclid', 'msclkid', 'yclid',
'ref', 'ref_src', 'source', 'medium', 'campaign'];
function cleanUrl(url) {
try {
var u = new URL(url, window.location.origin);
var changed = false;
trackingParams.forEach(function(p) {
if (u.searchParams.has(p)) {
u.searchParams.delete(p);
changed = true;
}
});
return changed ? u.toString() : url;
} catch (e) {
return url;
}
}
function cleanLinks() {
document.querySelectorAll('a[href]').forEach(function(a) {
var clean = cleanUrl(a.href);
if (clean !== a.href) a.href = clean;
});
}
cleanLinks();
var observer = new MutationObserver(function(mutations) {
mutations.forEach(function(m) {
m.addedNodes.forEach(function(node) {
if (node.nodeType === 1) {
if (node.tagName === 'A') cleanLinks();
node.querySelectorAll('a[href]').forEach(function(a) {
var clean = cleanUrl(a.href);
if (clean !== a.href) a.href = clean;
});
}
});
});
});
observer.observe(document.body, { childList: true, subtree: true });
})();
}
} catch(__e) { console.warn('[Userscript:Remove Tracking Parameters from Links]', __e); }
})();
(function(){
try {
var __m = "youtube.com";
var __re = new RegExp('^' + "youtube\\.com" + '
javascript-algorithms/src/data-structures/priority-queue at main · erensnl/javascript-algorithms · GitHub
Skip to content
priority-queue
Directory actions
More options
Directory actions
More options
Latest commit
History
History
priority-queue
README.md
Priority Queue
Read this in other languages:简体中文,
Русский,
日本語,
Français,
Português
In computer science, a priority queue is an abstract data type
which is like a regular queue or stack data structure, but where
additionally each element has a "priority" associated with it.
In a priority queue, an element with high priority is served before
an element with low priority. If two elements have the same
priority, they are served according to their order in the queue.
While priority queues are often implemented with heaps, they are
conceptually distinct from heaps. A priority queue is an abstract
concept like "a list" or "a map"; just as a list can be implemented
with a linked list or an array, a priority queue can be implemented
with a heap or a variety of other methods such as an unordered
array.
References

, 'i');
if (__m === '*' || __re.test(location.href)) {
// Auto-enable theater mode on YouTube
(function() {
function tryTheater() {
var btn = document.querySelector('button[aria-label="Theater mode"], ytd-player #player button[title="Theater mode"]');
if (btn && !btn.classList.contains('activated')) {
btn.click();
}
}
// Try immediately
tryTheater();
// Try after navigation (SPA)
var lastUrl = location.href;
setInterval(function() {
if (location.href !== lastUrl) {
lastUrl = location.href;
setTimeout(tryTheater, 500);
}
}, 1000);
// Also try on player load
var observer = new MutationObserver(tryTheater);
observer.observe(document.body, { childList: true, subtree: true });
})();
}
} catch(__e) { console.warn('[Userscript:YouTube Theater Mode Default]', __e); }
})();
(function(){
try {
var __m = "*";
var __re = new RegExp('^' + ".*" + '
javascript-algorithms/src/data-structures/priority-queue at main · erensnl/javascript-algorithms · GitHub
Skip to content
priority-queue
Directory actions
More options
Directory actions
More options
Latest commit
History
History
priority-queue
README.md
Priority Queue
Read this in other languages:简体中文,
Русский,
日本語,
Français,
Português
In computer science, a priority queue is an abstract data type
which is like a regular queue or stack data structure, but where
additionally each element has a "priority" associated with it.
In a priority queue, an element with high priority is served before
an element with low priority. If two elements have the same
priority, they are served according to their order in the queue.
While priority queues are often implemented with heaps, they are
conceptually distinct from heaps. A priority queue is an abstract
concept like "a list" or "a map"; just as a list can be implemented
with a linked list or an array, a priority queue can be implemented
with a heap or a variety of other methods such as an unordered
array.
References

, 'i');
if (__m === '*' || __re.test(location.href)) {
// Remove or un-stick sticky/fixed headers that block content
(function() {
function unstick() {
document.querySelectorAll('header, nav, [role="banner"], .header, .navbar, .sticky, .fixed-top, [style*="position: fixed"], [style*="position:sticky"]').forEach(function(el) {
if (el.style.position === 'fixed' || el.style.position === 'sticky' || getComputedStyle(el).position === 'fixed' || getComputedStyle(el).position === 'sticky') {
el.style.position = 'static';
el.style.top = 'auto';
el.style.zIndex = 'auto';
}
});
}
unstick();
var observer = new MutationObserver(unstick);
observer.observe(document.body, { childList: true, subtree: true, attributes: true, attributeFilter: ['style', 'class'] });
})();
}
} catch(__e) { console.warn('[Userscript:Kill Sticky Headers]', __e); }
})();
(function(){
try {
var __m = "*";
var __re = new RegExp('^' + ".*" + '
javascript-algorithms/src/data-structures/priority-queue at main · erensnl/javascript-algorithms · GitHub
Skip to content
priority-queue
Directory actions
More options
Directory actions
More options
Latest commit
History
History
priority-queue
README.md
Priority Queue
Read this in other languages:简体中文,
Русский,
日本語,
Français,
Português
In computer science, a priority queue is an abstract data type
which is like a regular queue or stack data structure, but where
additionally each element has a "priority" associated with it.
In a priority queue, an element with high priority is served before
an element with low priority. If two elements have the same
priority, they are served according to their order in the queue.
While priority queues are often implemented with heaps, they are
conceptually distinct from heaps. A priority queue is an abstract
concept like "a list" or "a map"; just as a list can be implemented
with a linked list or an array, a priority queue can be implemented
with a heap or a variety of other methods such as an unordered
array.
References

, 'i');
if (__m === '*' || __re.test(location.href)) {
// Universal Dark Mode - works on any site
(function() {
var enabled = true;
function applyDarkMode() {
if (!enabled) return;
// Create style element if it doesn't exist
var style = document.getElementById('universal-dark-mode-style');
if (!style) {
style = document.createElement('style');
style.id = 'universal-dark-mode-style';
document.head.appendChild(style);
}
// Dark mode CSS - inverts colors but preserves images/video
style.textContent = '
/* Invert everything except media */
html {
filter: invert(1) hue-rotate(180deg) !important;
background: #1a1a2e !important;
}
/* Restore images, videos, iframes, canvas */
img, video, iframe, canvas, svg, picture, [style*="background-image"] {
filter: invert(1) hue-rotate(180deg) !important;
}
/* Preserve specific elements that should not be inverted */
.no-dark-mode, .no-dark-mode *,
[data-theme="light"], [data-theme="light"],
.ace_editor, .ace_editor *,
.CodeMirror, .CodeMirror *,
.monaco-editor, .monaco-editor *,
.markdown-body pre, .markdown-body pre *,
.highlight, .highlight *,
pre code, pre code * {
filter: none !important;
}
/* Fix common UI elements */
.modal, .popup, .dropdown-menu, .tooltip, .popover {
filter: invert(1) hue-rotate(180deg) !important;
background: #2d2d44 !important;
border-color: #444 !important;
}
/* Scrollbars */
::-webkit-scrollbar { background: #1a1a2e !important; }
::-webkit-scrollbar-thumb { background: #444 !important; }
::-webkit-scrollbar-thumb:hover { background: #555 !important; }
/* Selection */
::selection { background: #4ecdc4 !important; color: #1a1a2e !important; }
::-moz-selection { background: #4ecdc4 !important; color: #1a1a2e !important; }
';
}
function removeDarkMode() {
var style = document.getElementById('universal-dark-mode-style');
if (style) style.remove();
}
// Toggle with Alt+Shift+D
document.addEventListener('keydown', function(e) {
if (e.altKey && e.shiftKey && e.key === 'D') {
e.preventDefault();
enabled = !enabled;
if (enabled) {
applyDarkMode();
console.log('[Universal Dark Mode] Enabled');
} else {
removeDarkMode();
console.log('[Universal Dark Mode] Disabled');
}
}
});
// Apply on load
applyDarkMode();
// Re-apply on dynamic content
var observer = new MutationObserver(function(mutations) {
if (enabled && !document.getElementById('universal-dark-mode-style')) {
applyDarkMode();
}
});
observer.observe(document.head, { childList: true });
console.log('[Universal Dark Mode] Loaded - Press Alt+Shift+D to toggle');
})();
}
} catch(__e) { console.warn('[Userscript:Universal Dark Mode]', __e); }
})();
})();
javascript-algorithms/src/data-structures/priority-queue at main · erensnl/javascript-algorithms · GitHub
Skip to content
priority-queue
Directory actions
More options
Directory actions
More options
Latest commit
History
History
priority-queue
README.md
Priority Queue
Read this in other languages:简体中文,
Русский,
日本語,
Français,
Português
In computer science, a priority queue is an abstract data type
which is like a regular queue or stack data structure, but where
additionally each element has a "priority" associated with it.
In a priority queue, an element with high priority is served before
an element with low priority. If two elements have the same
priority, they are served according to their order in the queue.
While priority queues are often implemented with heaps, they are
conceptually distinct from heaps. A priority queue is an abstract
concept like "a list" or "a map"; just as a list can be implemented
with a linked list or an array, a priority queue can be implemented
with a heap or a variety of other methods such as an unordered
array.
References