webcola
Version:
WebCola =======
161 lines • 12.5 kB
JavaScript
"use strict";
Object.defineProperty(exports, "__esModule", { value: true });
var PairingHeap = (function () {
function PairingHeap(elem) {
this.elem = elem;
this.subheaps = [];
}
PairingHeap.prototype.toString = function (selector) {
var str = "", needComma = false;
for (var i = 0; i < this.subheaps.length; ++i) {
var subheap = this.subheaps[i];
if (!subheap.elem) {
needComma = false;
continue;
}
if (needComma) {
str = str + ",";
}
str = str + subheap.toString(selector);
needComma = true;
}
if (str !== "") {
str = "(" + str + ")";
}
return (this.elem ? selector(this.elem) : "") + str;
};
PairingHeap.prototype.forEach = function (f) {
if (!this.empty()) {
f(this.elem, this);
this.subheaps.forEach(function (s) { return s.forEach(f); });
}
};
PairingHeap.prototype.count = function () {
return this.empty() ? 0 : 1 + this.subheaps.reduce(function (n, h) {
return n + h.count();
}, 0);
};
PairingHeap.prototype.min = function () {
return this.elem;
};
PairingHeap.prototype.empty = function () {
return this.elem == null;
};
PairingHeap.prototype.contains = function (h) {
if (this === h)
return true;
for (var i = 0; i < this.subheaps.length; i++) {
if (this.subheaps[i].contains(h))
return true;
}
return false;
};
PairingHeap.prototype.isHeap = function (lessThan) {
var _this = this;
return this.subheaps.every(function (h) { return lessThan(_this.elem, h.elem) && h.isHeap(lessThan); });
};
PairingHeap.prototype.insert = function (obj, lessThan) {
return this.merge(new PairingHeap(obj), lessThan);
};
PairingHeap.prototype.merge = function (heap2, lessThan) {
if (this.empty())
return heap2;
else if (heap2.empty())
return this;
else if (lessThan(this.elem, heap2.elem)) {
this.subheaps.push(heap2);
return this;
}
else {
heap2.subheaps.push(this);
return heap2;
}
};
PairingHeap.prototype.removeMin = function (lessThan) {
if (this.empty())
return null;
else
return this.mergePairs(lessThan);
};
PairingHeap.prototype.mergePairs = function (lessThan) {
if (this.subheaps.length == 0)
return new PairingHeap(null);
else if (this.subheaps.length == 1) {
return this.subheaps[0];
}
else {
var firstPair = this.subheaps.pop().merge(this.subheaps.pop(), lessThan);
var remaining = this.mergePairs(lessThan);
return firstPair.merge(remaining, lessThan);
}
};
PairingHeap.prototype.decreaseKey = function (subheap, newValue, setHeapNode, lessThan) {
var newHeap = subheap.removeMin(lessThan);
subheap.elem = newHeap.elem;
subheap.subheaps = newHeap.subheaps;
if (setHeapNode !== null && newHeap.elem !== null) {
setHeapNode(subheap.elem, subheap);
}
var pairingNode = new PairingHeap(newValue);
if (setHeapNode !== null) {
setHeapNode(newValue, pairingNode);
}
return this.merge(pairingNode, lessThan);
};
return PairingHeap;
}());
exports.PairingHeap = PairingHeap;
var PriorityQueue = (function () {
function PriorityQueue(lessThan) {
this.lessThan = lessThan;
}
PriorityQueue.prototype.top = function () {
if (this.empty()) {
return null;
}
return this.root.elem;
};
PriorityQueue.prototype.push = function () {
var args = [];
for (var _i = 0; _i < arguments.length; _i++) {
args[_i] = arguments[_i];
}
var pairingNode;
for (var i = 0, arg; arg = args[i]; ++i) {
pairingNode = new PairingHeap(arg);
this.root = this.empty() ?
pairingNode : this.root.merge(pairingNode, this.lessThan);
}
return pairingNode;
};
PriorityQueue.prototype.empty = function () {
return !this.root || !this.root.elem;
};
PriorityQueue.prototype.isHeap = function () {
return this.root.isHeap(this.lessThan);
};
PriorityQueue.prototype.forEach = function (f) {
this.root.forEach(f);
};
PriorityQueue.prototype.pop = function () {
if (this.empty()) {
return null;
}
var obj = this.root.min();
this.root = this.root.removeMin(this.lessThan);
return obj;
};
PriorityQueue.prototype.reduceKey = function (heapNode, newKey, setHeapNode) {
if (setHeapNode === void 0) { setHeapNode = null; }
this.root = this.root.decreaseKey(heapNode, newKey, setHeapNode, this.lessThan);
};
PriorityQueue.prototype.toString = function (selector) {
return this.root.toString(selector);
};
PriorityQueue.prototype.count = function () {
return this.root.count();
};
return PriorityQueue;
}());
exports.PriorityQueue = PriorityQueue;
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