"use strict";{const t={},e=!0,r=!1;t.RBnode=function(t){this.tree=t,this.right=this.tree.sentinel,this.left=this.tree.sentinel,this.parent=null,this.color=!1,this.key=null},t.RedBlackSet=function(e){this.size=0,this.sentinel=new t.RBnode(this),this.sentinel.color=r,this.root=this.sentinel,this.root.parent=this.sentinel,this.compare=e||this.default_compare},t.RedBlackSet.prototype.default_compare=function(t,e){return t<e?-1:e<t?1:0},t.RedBlackSet.prototype.clone=function(){var e=new t.RedBlackSet(this.compare);return e.insertAll(this),e},t.RedBlackSet.prototype.clear=function(){this.size=0,this.sentinel=new t.RBnode(this),this.sentinel.color=r,this.root=this.sentinel,this.root.parent=this.sentinel},t.RedBlackSet.prototype.leftRotate=function(t){var e=t.right;t.right=e.left,e.left!=this.sentinel&&(e.left.parent=t),e.parent=t.parent,t.parent==this.sentinel?this.root=e:t==t.parent.left?t.parent.left=e:t.parent.right=e,e.left=t,t.parent=e},t.RedBlackSet.prototype.rightRotate=function(t){var e=t.left;t.left=e.right,e.right!=this.sentinel&&(e.right.parent=t),e.parent=t.parent,t.parent==this.sentinel?this.root=e:t==t.parent.right?t.parent.right=e:t.parent.left=e,e.right=t,t.parent=e},t.RedBlackSet.prototype.insert=function(r){if(this.contains(r)){this.get_(r).key=r}else{var i=new t.RBnode(this);i.key=r;for(var n=this.sentinel,o=this.root;o!=this.sentinel;)n=o,o=this.compare(i.key,o.key)<0?o.left:o.right;i.parent=n,n==this.sentinel?this.root=i:this.compare(i.key,n.key)<0?n.left=i:n.right=i,i.left=this.sentinel,i.right=this.sentinel,i.color=e,this.insertFixup(i),this.size++}},t.RedBlackSet.prototype.insertFixup=function(t){for(;t!=this.sentinel&&t!=this.root&&t.parent.color==e;)if(t.parent==t.parent.parent.left){(i=t.parent.parent.right).color==e?(t.parent.color=r,i.color=r,t.parent.parent.color=e,t=t.parent.parent):(t==t.parent.right&&(t=t.parent,this.leftRotate(t)),t.parent.color=r,t.parent.parent.color=e,t.parent.parent!=this.sentinel&&this.rightRotate(t.parent.parent))}else{var i;(i=t.parent.parent.left).color==e?(t.parent.color=r,i.color=r,t.parent.parent.color=e,t=t.parent.parent):(t==t.parent.left&&(t=t.parent,this.rightRotate(t)),t.parent.color=r,t.parent.parent.color=e,t.parent.parent!=this.sentinel&&this.leftRotate(t.parent.parent))}this.root.color=r},t.RedBlackSet.prototype.delete_=function(t){var e,i;(i=(e=t.left==this.sentinel||t.right==this.sentinel?t:this.successor_(t)).left!=this.sentinel?e.left:e.right).parent=e.parent,e.parent==this.sentinel?this.root=i:e==e.parent.left?e.parent.left=i:e.parent.right=i,e!=t&&(t.key=e.key),e.color==r&&this.deleteFixup(i),this.size--},t.RedBlackSet.prototype.deleteFixup=function(t){for(;t!=this.root&&t.color==r;)if(t==t.parent.left){(i=t.parent.right).color==e&&(i.color=r,t.parent.color=e,this.leftRotate(t.parent),i=t.parent.right),i.left.color==r&&i.right.color==r?(i.color=e,t=t.parent):(i.right.color==r&&(i.left.color=r,i.color=e,this.rightRotate(i),i=t.parent.right),i.color=t.parent.color,t.parent.color=r,i.right.color=r,this.leftRotate(t.parent),t=this.root)}else{var i;(i=t.parent.left).color==e&&(i.color=r,t.parent.color=e,this.rightRotate(t.parent),i=t.parent.left),i.right.color==r&&i.left.color==r?(i.color=e,t=t.parent):(i.left.color==r&&(i.right.color=r,i.color=e,this.leftRotate(i),i=t.parent.left),i.color=t.parent.color,t.parent.color=r,i.left.color=r,this.rightRotate(t.parent),t=this.root)}t.color=r},t.RedBlackSet.prototype.remove=function(t){var e=this.get_(t);if(e!=this.sentinel){var r=e.key;return this.delete_(e),r}return null},t.RedBlackSet.prototype.removeSwapped=function(t,e){this.remove(e)},t.RedBlackSet.prototype.min=function(t){for(;t.left!=this.sentinel;)t=t.left;return t},t.RedBlackSet.prototype.max=function(t){for(;t.right!=this.sentinel;)t=t.right;return t},t.RedBlackSet.prototype.successor_=function(t){if(t.right!=this.sentinel)return this.min(t.right);for(var e=t.parent;e!=this.sentinel&&t==e.right;)t=e,e=e.parent;return e},t.RedBlackSet.prototype.predeccessor_=function(t){if(t.left!=this.sentinel)return this.max(t.left);for(var e=t.parent;e!=this.sentinel&&t==e.left;)t=e,e=e.parent;return e},t.RedBlackSet.prototype.successor=function(t){if(this.size>0){var e=this.get_(t);if(e==this.sentinel)return null;if(e.right!=this.sentinel)return this.min(e.right).key;for(var r=e.parent;r!=this.sentinel&&e==r.right;)e=r,r=r.parent;return r!=this.sentinel?r.key:null}return null},t.RedBlackSet.prototype.predecessor=function(t){if(this.size>0){var e=this.get_(t);if(e==this.sentinel)return null;if(e.left!=this.sentinel)return this.max(e.left).key;for(var r=e.parent;r!=this.sentinel&&e==r.left;)e=r,r=r.parent;return r!=this.sentinel?r.key:null}return null},t.RedBlackSet.prototype.getMin=function(){return this.min(this.root).key},t.RedBlackSet.prototype.getMax=function(){return this.max(this.root).key},t.RedBlackSet.prototype.get_=function(t){for(var e=this.root;e!=this.sentinel&&0!=this.compare(e.key,t);)e=this.compare(t,e.key)<0?e.left:e.right;return e},t.RedBlackSet.prototype.contains=function(t){return null!=this.get_(t).key},t.RedBlackSet.prototype.getValues=function(){var t=[];return this.forEach((function(e){t.push(e)})),t},t.RedBlackSet.prototype.insertAll=function(e){if("array"==t.typeOf(e))for(var r=0;r<e.length;r++)this.insert(e[r]);else if("function"==t.typeOf(e.forEach))e.forEach(this.insert,this);else if("function"==t.typeOf(e.getValues)){var i=e.getValues();for(r=0;r<i.length;r++)this.insert(i[r])}else if("object"==t.typeOf(e))for(var n in e)this.insert(e[n])},t.RedBlackSet.prototype.removeAll=function(e){if("array"==t.typeOf(e))for(var r=0;r<e.length;r++)this.remove(e[r]);else if("function"==t.typeOf(e.forEach))e.forEach(this.removeSwapped,this);else if("function"==t.typeOf(e.getValues)){var i=e.getValues();for(r=0;r<i.length;r++)this.remove(i[r])}else if("object"==t.typeOf(e))for(var n in e)this.remove(e[n])},t.RedBlackSet.prototype.containsAll=function(e){if("array"==t.typeOf(e)){for(var r=0;r<e.length;r++)if(!this.contains(e[r]))return!1;return!0}if("function"==t.typeOf(e.forEach))return e.every(this.contains,this);if("function"==t.typeOf(e.getValues)){var i=e.getValues();for(r=0;r<i.length;r++)if(!this.contains(i[r]))return!1;return!0}if("object"==t.typeOf(e)){for(var n in e)if(!this.contains(e[n]))return!1;return!0}},t.RedBlackSet.prototype.range=function(t,e){var r=[];return this.traverseFromTo((function(t){r.push(t)}),t,e),r},t.RedBlackSet.prototype.traverse=function(t,e){if(!this.isEmpty())for(var r=this.min(this.root);r!=this.sentinel;){if(t.call(e,r.key,this))return;r=this.successor_(r)}},t.RedBlackSet.prototype.traverseFrom=function(t,e,r){if(!this.isEmpty())for(var i=this.get_(e);i!=this.sentinel;){if(t.call(r,i.key,this))return;i=this.successor_(i)}},t.RedBlackSet.prototype.traverseTo=function(t,e,r){if(!this.isEmpty())for(var i=this.min(this.root),n=this.get_(e);i!=n;){if(t.call(r,i.key,this))return;i=this.successor_(i)}},t.RedBlackSet.prototype.traverseFromTo=function(t,e,r,i){if(!this.isEmpty())for(var n=this.get_(e),o=this.get_(r);n!=o;){if(t.call(i,n.key,this))return;n=this.successor_(n)}},t.RedBlackSet.prototype.traverseBackwards=function(t,e){if(!this.isEmpty())for(var r=this.max(this.root);r!=this.sentinel;){if(t.call(e,r.key,this))return;r=this.predeccessor_(r)}},t.RedBlackSet.prototype.forEach=function(t,e){if(!this.isEmpty())for(var r=this.min(this.root);r!=this.sentinel;r=this.successor_(r))t.call(e,r.key,r.key,this)},t.RedBlackSet.prototype.some=function(t,e){if(this.isEmpty())return!1;for(var r=this.min(this.root);r!=this.sentinel;r=this.successor_(r))if(t.call(e,r.key,r.key,this))return!0;return!1},t.RedBlackSet.prototype.every=function(t,e){if(this.isEmpty())return!1;for(var r=this.min(this.root);r!=this.sentinel;r=this.successor_(r))if(!t.call(e,r.key,r.key,this))return!1;return!0},t.RedBlackSet.prototype.map=function(t,e){var r=[];if(this.isEmpty())return r;for(var i=this.min(this.root);i!=this.sentinel;i=this.successor_(i))r.push(t.call(e,i.key,i.key,this));return r},t.RedBlackSet.prototype.filter=function(t,e){var r=[];if(this.isEmpty())return r;for(var i=this.min(this.root);i!=this.sentinel;i=this.successor_(i))t.call(e,i.key,i.key,this)&&r.push(i.key);return r},t.RedBlackSet.prototype.getCount=function(){return this.size},t.RedBlackSet.prototype.isEmpty=function(){return 0==this.size},t.RedBlackSet.prototype.isSubsetOf=function(e){var r=t.getCount(e);if(this.getCount()>r)return!1;var i=0;if(this.isEmpty())return!0;for(var n=this.min(this.root);n!=this.sentinel;n=this.successor_(n))t.contains.call(e,e,n.key)&&i++;return i==this.getCount()},t.RedBlackSet.prototype.intersection=function(e){var r=new t.RedBlackSet(this.compare);if(this.isEmpty())return r;for(var i=this.min(this.root);i!=this.sentinel;i=this.successor_(i))e.contains.call(e,i.key,i.key,this)&&r.insert(i.key);return r},self.RedBlackSet=class{constructor(e){this._rbSet=new t.RedBlackSet(e)}Add(t){this._rbSet.insert(t)}Remove(t){this._rbSet.remove(t)}Has(t){return this._rbSet.contains(t)}Clear(){this._rbSet.clear()}toArray(){return this._rbSet.getValues()}GetSize(){return this._rbSet.getCount()}IsEmpty(){return this._rbSet.isEmpty()}ForEach(t){this._rbSet.forEach(t)}Front(){if(this.IsEmpty())throw new Error("empty set");const t=this._rbSet;return t.min(t.root).key}Shift(){if(this.IsEmpty())throw new Error("empty set");const t=this.Front();return this.Remove(t),t}*values(){if(this.IsEmpty())return;const t=this._rbSet;for(let e=t.min(t.root);e!=t.sentinel;e=t.successor_(e))yield e.key}[Symbol.iterator](){return this.values()}}}