From c4340d0c281ab4d14b349d7ae9bfd1b0bbc35e70 Mon Sep 17 00:00:00 2001
From: Wanchen He <hwc14@qq.com>
Date: Thu, 12 Mar 2020 23:43:45 +0800
Subject: [PATCH] Bug Fixed: solveDoubleRed when extrInsert.

---
 docs/bundle.js | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/docs/bundle.js b/docs/bundle.js
index c37a270..32c531d 100644
--- a/docs/bundle.js
+++ b/docs/bundle.js
@@ -4,4 +4,4 @@
  * (c) 2014-2019 Evan You
  * Released under the MIT License.
  */
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0===n[t].lc?r[0].push(o):e[0].push(o);let s=[i.x,i.y,n[t+1].x-i.x,a-29];void 0===n[t+1].lc?r[1].push(s):e[1].push(s),t+=2}else t++}}return i}static buildFromTreeJsonObj(t){if(null===t._root)return new this;let e=new this(t._root.data),n=[t._root],r=[e.root()];for(;n.length>0;){let t=n.pop(),i=r.pop();t.lc&&(e.insertAsLC(i,t.lc.data).color=t.lc.color,n.push(t.lc),r.push(i.lc)),t.rc&&(e.insertAsRC(i,t.rc.data).color=t.rc.color,n.push(t.rc),r.push(i.rc))}return e}buildFromBinSequence(t){this.insertAsRoot(t[0]);let e=1,n=new w([this._root]);for(;e<t.length&&!n.empty();){let r=n.shift();null!=t[e]&&n.push(this.insertAsLC(r,t[e])),e++,null!=t[e]&&n.push(this.insertAsRC(r,t[e])),e++}}static preorderTraversal(t){let e=[],n=[t];for(;n.length>0;)for(t=n.pop();t;)e.push(t),t.rc&&n.push(t.rc),t=t.lc;return e}static inorderTraversal(t){let e=[],n=[];for(;t||n.length>0;){for(;t;)n.push(t),t=t.lc;t=n.pop(),e.push(t),t=t.rc}return e}static postorderTraversal(t){let e=[],n=[t];for(;n.length>0;){if(t.parent!=n[n.length-1])for(t=n[n.length-1];t;)t.rc&&n.push(t.rc),t.lc&&n.push(t.lc),t=t.lc?t.lc:t.rc;t=n.pop(),e.push(t)}return e}static levelTraversal(t){let e=[],n=new w([t]);for(;!n.empty();)t=n.shift(),e.push(t),t.lc&&n.push(t.lc),t.rc&&n.push(t.rc);return e}static properTraversal(t){let e=[],n=new w([t]);for(;!n.empty();)t=n.shift(),e.push(t),t&&(n.push(t.lc),n.push(t.rc));return e}static genSampleTree(){let t=new k(Math.ceil(20*Math.random())),e=[t.root()],n=Math.random()<.5?Math.ceil(4*Math.random()):Math.ceil(15*Math.random());for(let r=0;r<n;r++){let r=Math.floor(Math.random()*e.length),i=e[r];i.lc||e.push(t.insertAsLC(i,Math.ceil(5*Math.random()*n))),i.rc||e.push(t.insertAsRC(i,Math.ceil(5*Math.random()*n))),e.splice(r,1)}return t}static checkValidity(t){return[!0,""]}}window.BinTree=k;class $ extends k{connect34(t,e,n,r,i,o,a){return this.reAttachAsLC(t,r),this.reAttachAsRC(t,i),this.updateHeight(t),this.reAttachAsLC(n,o),this.reAttachAsRC(n,a),this.updateHeight(n),this.reAttachAsLC(e,t),this.reAttachAsRC(e,n),this.updateHeight(e),e}rotateAt(t){let e=t.parent,n=e.parent,r=n.parent,i=_.isLC(n);return(t=_.isLC(e)?_.isLC(t)?this.connect34(t,e,n,t.lc,t.rc,e.rc,n.rc):this.connect34(e,t,n,e.lc,t.lc,t.rc,n.rc):_.isLC(t)?this.connect34(n,t,e,n.lc,t.lc,t.rc,e.rc):this.connect34(n,e,t,n.lc,e.lc,t.lc,t.rc)).parent=r,r?i?r.lc=t:r.rc=t:this._root=t,t}searchIn(t,e){for(;t&&t.data!=e;)this._hot=t,t=e<t.data?t.lc:t.rc;return t}search(t){return this._hot=null,this.searchIn(this._root,t)}staticSearch(t){return this._hot=null,this.searchIn(this._root,t)}insert(t){let e=this.search(t);return e||(e=new b(t,this._hot),this._size++,this._root?t<this._hot.data?this._hot.lc=e:this._hot.rc=e:this._root=e,this.updateHeightAbove(e),e)}removeAt(t){let e=t;return t.lc?t.rc?(e=e.succ(),t.data=e.data,t=e.rc):t=t.lc:t=t.rc,this._hot=e.parent,t&&(t.parent=this._hot),this._hot?_.isLC(e)?this._hot.lc=t:this._hot.rc=t:this._root=t,t}remove(t){let e=this.search(t);return!!e&&(this.removeAt(e),this._size--,this.updateHeightAbove(this._hot),!0)}static genSampleTree(){let t=Math.random()<.5?Math.ceil(8*Math.random()):Math.ceil(30*Math.random()),e=Math.ceil(30*Math.random()+t),n=new this(e);for(let r=0;r<t;r++)Math.random()<.5?n.insert(e-Math.ceil(Math.random()*e)):n.insert(e+Math.ceil(Math.random()*e));return n}static checkUnique(t){if(0===t.length)return!0;let e=t[0].data.toString(),n={curData:!0};for(let r=0;r<t.length-1;r++){if(e=t[r+1].data.toString(),n[e])return!1;n[e]=!0}return!0}static checkValidity(t){let e,n=this.inorderTraversal(t.root()),r=!0,i=null;this.checkUnique(n)||(e="WARNING: 当前实现禁止重复值!");for(let t=0;t<n.length-1;t++)if(n[t].data>=n[t+1].data){r=!1,i=n[t];break}return e=null===i?"":`WARNING: 节点${i.data}处不满足顺序性!`,[r,e]}}window.BST=$;class T extends ${static avlBalanced(t){let e=_.stature(t.lc)-_.stature(t.rc);return-2<e&&e<2}insert(t){if(!this._root)return this._size++,this._root=new b(t);let e=this.search(t);return e||(e=new b(t,this._hot),this._size++,t<this._hot.data?this._hot.lc=e:this._hot.rc=e,this.solveInsertUnbalance(),e)}solveInsertUnbalance(){for(let t=this._hot;t;t=t.parent){if(!T.avlBalanced(t)){this.rotateAt(_.tallerChild(_.tallerChild(t)));break}this.updateHeight(t)}}remove(t){let e=this.search(t);return!!e&&(this.removeAt(e),this._size--,this.solveRemoveUnbalance(),!0)}solveRemoveUnbalance(){for(let t=this._hot;t;t=t.parent)T.avlBalanced(t)||this.rotateAt(_.tallerChild(_.tallerChild(t))),this.updateHeight(t)}static genSampleTree(){let t=new T,e=5+(Math.random()<.5?Math.ceil(4*Math.random()):Math.ceil(15*Math.random()));for(let n=0;n<e;n++)t.insert(Math.ceil(5*Math.random()*e));return t}static checkValidity(t){let e=$.checkValidity(t);if(!e[0])return e;let n=!0,r=this.inorderTraversal(t.root()),i=null;for(let t=0;t<r.length;t++)if(!this.avlBalanced(r[t])){n=!1,i=r[t];break}return[n,null===i?"":`节点${i.data}处不满足AVL平衡!`]}}window.AVL=T;class C extends ${splay(t){if(!t)return null;let e,n;for(;(e=t.parent)&&(n=e.parent);)this.splayDoubleLayer(t,e,n);return(e=t.parent)&&this.splaySingleLayer(t,e),t.parent=null,t}splayDoubleLayer(t,e,n){let r=n.parent;return t==e.lc?e==n.lc?(this.reAttachAsLC(n,e.rc),this.reAttachAsLC(e,t.rc),this.reAttachAsRC(e,n),this.reAttachAsRC(t,e)):this.connect34(n,t,e,n.lc,t.lc,t.rc,e.rc):e==n.lc?this.connect34(e,t,n,e.lc,t.lc,t.rc,n.rc):(this.reAttachAsRC(n,e.lc),this.reAttachAsRC(e,t.lc),this.reAttachAsLC(e,n),this.reAttachAsLC(t,e)),r?n==r.lc?this.reAttachAsLC(r,t):this.reAttachAsRC(r,t):t.parent=null,this.updateHeight(n),this.updateHeight(e),this.updateHeight(t),t}splaySingleLayer(t,e){return t==e.lc?(this.reAttachAsLC(e,t.rc),this.reAttachAsRC(t,e)):(this.reAttachAsRC(e,t.lc),this.reAttachAsLC(t,e)),this.updateHeight(e),this.updateHeight(t),t}search(t){let e=this.searchIn(this._root,t);return this._root=this.splay(e||this._hot)}insert(t){return this._root?t==this.search(t).data?this._root:this.insertSplitRoot(t):(this._size++,this._root=new b(t))}insertSplitRoot(t){let e=new b(t);return this._root.data<t?(this.reAttachAsRC(e,this._root.rc),this.reAttachAsLC(e,this._root),this._root.rc=null):(this.reAttachAsLC(e,this._root.lc),this.reAttachAsRC(e,this._root),this._root.lc=null),this._size++,this.updateHeightAbove(this._root),this._root=e}remove(t){if(!this._root||t!=this.search(t).data)return!1;let e=this._root;return e.rc?e.lc?(this._root=e.rc,this._root.parent=null,this.search(t),this.reAttachAsLC(this._root,e.lc)):(this._root=e.rc)&&(this._root.parent=null):(this._root=e.lc)&&(this._root.parent=null),this._size--,this._root&&this.updateHeight(this._root),!0}}window.Splay=C;let x=_.stature;class S extends ${solveDoubleRed(t){if(_.isRoot(t))return t.color=y.Black,void this.updateHeight(t);if(_.isBlack(t)||_.isBlack(t.parent))return;let e=t.parent,n=e.parent,r=_.isLC(e)?n.rc:n.lc;_.isBlack(r)?(_.isLC(e)==_.isLC(t)?e.color=y.Black:t.color=y.Black,n.color=y.Red,this.rotateAt(t)):(n.color=y.Red,e.color=r.color=y.Black,this.updateHeight(e),this.updateHeight(r),this.solveDoubleRed(n))}solveDoubleBlack(t){let e=t?t.parent:this._hot;if(!e)return;let n=t==e.rc?e.lc:e.rc;if(_.isBlack(n)){let t;if(n.lc&&_.isRed(t=n.lc)||n.rc&&_.isRed(t=n.rc)){let r=e.color;t.color=n.color=e.color=y.Black,_.isLC(n)==_.isLC(t)?n.color=r:t.color=r,this.rotateAt(t)}else n.color=y.Red,this.updateHeight(n),_.isRed(e)?(e.color=y.Black,this.updateHeight(e)):(this.updateHeight(e),this.solveDoubleBlack(e))}else{let r=_.isLC(n)?n.lc:n.rc;n.color=y.Black,e.color=y.Red,this._hot=e,this.rotateAt(r),this.solveDoubleBlack(t)}}updateHeight(t){t.height=x(t.lc)>x(t.rc)?x(t.lc):x(t.rc),_.isBlack(t)&&t.height++}insert(t){let e=this.search(t);if(e)return e;e=new b(t,this._hot,null,null,-1),this._root?t<this._hot.data?this._hot.lc=e:this._hot.rc=e:this._root=e,this._size++;let n=e;return this.solveDoubleRed(e),n}remove(t){let e=this.search(t);return!!e&&(e=this.removeAt(e),0==--this._size||(this._hot?!!_.isBlackUpdated(this._hot)||(_.isRed(e)?(e.color=y.Black,this.updateHeight(e),!0):(this.solveDoubleBlack(e),!0)):(this._root.color=y.Black,this.updateHeight(this._root),!0)))}}window.RedBlack=S;var O=new i.a({el:"#TreePlayground",data:{availTreeTypes:{BinTree:!0,BST:!0,AVL:!0,Splay:!0,RedBlack:!0},commonParams:{curTreeType:"BST",treeScale:100,interval:500},messages:{left:"",right:""},treeClassMap:{BinTree:k,BST:$,AVL:T,Splay:C,RedBlack:S},trees:{BinTree:null,BST:null,AVL:null,Splay:null,RedBlack:null},structInfo:{nodes:[],extrNodes:[],edges:[[],[]],extrEdges:[[],[]]},locks:{trvlLock:!1,rotateLock:!1},topSequence:[],BSTParams:{allowExtrInsert:!1},alertTag:0,messageTag:0},components:{binnode:l,"extr-binnode":h,"top-binnode":g},methods:{init(){if(this.alertAsync("Init "+this.curTreeType,100,!1),localStorage["temp"+this.curTreeType]){this.alertAsync("Read localStorage.",100,!1);try{let t=JSON.retrocycle(JSON.parse(localStorage["temp"+this.curTreeType]));this.tree=this.curTreeClass.buildFromTreeJsonObj(t)}catch(t){this.alertAsync("Error reading localStorage."),this.loadSampleTree()}}else this.alertAsync("Load default tree.",100,!1),this.loadSampleTree();this.reset(!1)},reset(t=!0){t&&(this.messages={left:"",right:""},this.topSequence=[]),this.alertAsync("Reset",150,!1),this.isDragging=!1;for(let t in this.locks)this.locks[t]=!1;this.update()},update(){console.log("Update"),this.structInfo=this.tree.calStructInfo(),localStorage["temp"+this.curTreeType]=JSON.stringify(JSON.decycle(this.tree)),localStorage.commonParams=JSON.stringify(this.commonParams)},loadSampleTree(){this.showMessage(`Load Sample ${this.curTreeType}`,1e3),this.tree=this.curTreeClass.genSampleTree()},alertAsync(t,e=1500,n=!0){if(""===this.messages.right||n){this.messages.right=t;let n=++this.alertTag;e>0&&setTimeout((t=n)=>{t===this.alertTag&&(this.messages.right="")},e)}else setTimeout(()=>{this.alertAsync(t,e,!1)},100)},showMessage(t,e=-1,n=!0){if(""===this.messages.left||n){this.messages.left=t;let n=++this.messageTag;e>0&&setTimeout((t=n)=>{t===this.messageTag&&(this.messages.left="")},e)}else setTimeout(()=>{this.showMessage(t,e,!1)},100)},traversal(t){if(this.isAnyLocked())return!1;let e;this.update(),this.locks.trvlLock=!0,0===t?e=k.preorderTraversal(this.tree.root()):1==t?e=k.inorderTraversal(this.tree.root()):2==t?e=k.postorderTraversal(this.tree.root()):3==t&&(e=k.levelTraversal(this.tree.root())),this.topSequence=[],this.messages.left=0==t?"先序遍历":1==t?"中序遍历":2==t?"后续遍历":3==t?"层次遍历":"",this._printSequenceAsyc(e,()=>{this.locks.trvlLock=!1,this.messages.left=""})},_printSequenceAsyc(t,e){if(0==t.length)return setTimeout(()=>{this.update()},2*this.commonParams.interval),void("function"==typeof e&&e());if(!this.locks.trvlLock)return!1;let n=t.shift();this.topSequence.push(n.data),n.active=!0,setTimeout(()=>{n.active=!1,this.locks.trvlLock&&(n.visited=!0),this._printSequenceAsyc(t,e)},this.commonParams.interval)},onIntrUpdate(t){if(this.isAnyLocked())return!1;this.update();let e=t[0],n=t[1],r=`Change ${e.data} to ${n}`;if("BinTree"!==this.curTreeType){if(this.tree.staticSearch(n))return this.alertAsync(`${n} Exists!`),!1;if(!this.checkNodeOrder(e,n))return!1}e.data=n,this.update(),this.messages.left=r,e.active=!0},onExtrInsert(t){this.update();let e=t[0],n=t[1],r=t[2],i=this.curTreeType;if("Splay"===i)return this.alertAsync("Can't insert at external nodes in SplayTree.",3e3),!1;if("BinTree"!==i){if(this.tree.staticSearch(n))return this.alertAsync(`${n} Exists!`),!1;if(!this.checkNodeOrder(e,n))return!1}var o,a;o="BinTree"===i||"BST"===i,a=e.isRoot?this.tree.insertAsRoot(n,o):e.isLC?this.tree.insertAsLC(e.parent,n,o):this.tree.insertAsRC(e.parent,n,o),"AVL"===i&&(this.tree.staticSearch(n),this.tree.solveInsertUnbalance()),this.update(),a.active=!0,this.messages.left=`Insert ${n}`,"function"==typeof r&&r(!0)},onRemoveBelow(t){if(this.isAnyLocked())return!1;this.tree.removeBelow(t),this.update(),this.showMessage(`Remove Below ${t.data}`)},onRemoveOne(t){if(this.isAnyLocked())return!1;if(this.showMessage(`Remove ${t.data}`),"RedBlack"===this.curTreeType)this.tree.remove(t.data),this.update();else if("Splay"===this.curTreeType)this.alertAsync(`Step 1: Splay ${t.data}`,-1),t.active=!0,setTimeout(()=>{this.locks.rotateLock=!0,this._splayAsync(t,e=>{if(void 0===e)return!1;if(null===e)throw"Error in RemoveOne";let n=e,r=this.tree;r._size--,n.rc&&n.rc?(t.active=!1,t.deprecated=!0,this.locks.trvlLock=!0,this.alertAsync(`Step 2: Elevate Succ of ${t.data}`,-1),this._searchAsync(n.rc,n.data,(e,i)=>{this.locks.rotateLock=!0,this._splayAsync(i,e=>{this.alertAsync(`Step 3: Finally remove ${t.data}`,2500),r.reAttachAsLC(e,n.lc),this.update()})})):(n.rc?(r._root=n.rc)&&(r._root.parent=null):(r._root=n.lc)&&(r._root.parent=null),this.alertAsync(`Final: remove ${t.data}`,2500),this.update())})},this.commonParams.interval);else if(t.lc&&t.rc){this.alertAsync("Step 1: Find Succ",-1);let e=t.succ();t.deprecated=!0,this.locks.trvlLock=!0,this._searchAsync(t,e.data,()=>{this.alertAsync("Step 2: Swap with Succ",-1),this.update(),t.deprecated=!0,e.active=!0,setTimeout(()=>{let n=t.data;t.data=e.data,e.data=n,t.deprecated=!1,e.active=!1,t.active=!0,e.deprecated=!0,this.alertAsync(`Step 3: Remove ${n}`,2500),setTimeout(()=>{this.tree.removeAt(e),this.update(),"AVL"===this.curTreeType&&(this.alertAsync("Step 4: AVL reBalance",-1),this.tree._hot&&(this.tree._hot.active=!0),setTimeout(()=>{this.locks.rotateLock=!0,this.avlRmRotateAsync(this.tree._hot,()=>{this.alertAsync("AVL Balanced again."),this.update()})},this.commonParams.interval))},this.commonParams.interval)},this.commonParams.interval)})}else this.tree.removeAt(t),this.tree._size--,this.alertAsync(`${t.data} Removed.`,2500),this.update(),"AVL"===this.curTreeType&&(this.alertAsync(`${t.data} Removed, solve AVL Unbalance`,-1),setTimeout(()=>{this.locks.rotateLock=!0,this.avlRmRotateAsync(this.tree._hot,()=>{this.alertAsync("AVL Balanced again."),this.update()})},this.commonParams.interval))},avlRmRotateAsync(t,e){if(!t||!this.locks.rotateLock||"AVL"!==this.curTreeType)return this.locks.rotateLock=!1,void("function"==typeof e&&e());t.active=!0,setTimeout(()=>{let n=this.commonParams.interval;T.avlBalanced(t)?n=0:this.tree.rotateAt(_.tallerChild(_.tallerChild(t))),this.tree.updateHeight(t),this.update(),t.active=!0,setTimeout(()=>{t.active=!1,this.avlRmRotateAsync(t.parent,e)},n)},this.commonParams.interval)},onTopBuild(t){"BinTree"!==this.curTreeType&&this.alertAsync("请自行保证合法性, 不合法的树会造成操作异常.",2500),this.tree.buildFromBinSequence(t),this.update(),this.messages.left="真二叉树层次序列构建";let e=this.curTreeClass.checkValidity(this.tree);e[0]||this.alertAsync(e[1],2500)},onTopInsert(t){return!this.isAnyLocked()&&("BinTree"===this.curTreeType?(this.alertAsync("BinTree can't insert."),!1):(console.log("Insert by sequence"),this.update(),this.topSequence=t,void this.insertSequnceAsync()))},insertSequnceAsync(){for(;this.topSequence.length>0&&null===this.topSequence[0];)this.topSequence.shift();if(0===this.topSequence.length)return this.locks.trvlLock=!1,!1;let t=this.topSequence.shift();this.messages.left=`Insert ${t}`,this.alertAsync(`Step 1: Search ${t}`,-1),this.locks.trvlLock=!0,this.tree._hot=null,this._searchAsync(this.tree.root(),t,(e,n)=>{let r=null;"Splay"===this.curTreeType?(this.alertAsync(n?`Step 2: Splay at ${n.data}`:"",-1),setTimeout(()=>{this.locks.rotateLock=!0,this._splayAsync(n,i=>{if(e)this.alertAsync(`${t} Exists`),r=n;else{if(void 0===i)return!1;this.alertAsync(`Final: ${t} Inserted`,2500),r=null===i?this.tree.insertAsRoot(t):this.tree.insertSplitRoot(t)}setTimeout(()=>{if(this.update(),0===this.topSequence.length)return r.active=!0,this.locks.trvlLock=!1,!1;this.insertSequnceAsync()},this.commonParams.interval)})},this.commonParams.interval)):(e?(this.alertAsync(`${t} Exists`),r=n):(r=this.tree.insert(t),this.alertAsync(`Final: ${t} Inserted`,2500)),setTimeout(()=>{if(this.update(),0===this.topSequence.length)return r.active=!0,this.locks.trvlLock=!1,!0;this.insertSequnceAsync()},this.commonParams.interval))})},onTopSearch(t){if(this.isAnyLocked())return!1;this.update(),this.locks.trvlLock=!0,this.messages.left=`Search ${t}`,this.tree._hot=null,this._searchAsync(this.tree.root(),t,(e,n)=>{e?this.alertAsync(`${t} Found`):Math.random()<.5?this.alertAsync(`${t} Not Found`):this.alertAsync(`${t} 404`),"Splay"===this.curTreeType&&(this.alertAsync(n?`Splay at ${n.data}`:"",2e3),setTimeout(()=>{this.locks.rotateLock=!0,this._splayAsync(n)},this.commonParams.interval))})},_searchAsync(t,e,n){return this.locks.trvlLock&&t?(t.active=!0,e===t.data?(this.locks.trvlLock=!1,"function"==typeof n&&n(!0,t),!0):(this.tree._hot=t,void setTimeout(()=>{t.active=!1,t.visited=!0,t=e<t.data?t.lc:t.rc,this._searchAsync(t,e,n)},this.commonParams.interval))):(this.locks.trvlLock=!1,"function"==typeof n&&n(!1,this.tree._hot),!1)},_splayAsync(t,e){if(!t)return this.locks.rotateLock=!1,"function"==typeof e&&e(null),!1;if(!this.locks.rotateLock)return"function"==typeof e&&e(void 0),!1;let n,r;(n=t.parent)&&(r=n.parent)?this.tree.splayDoubleLayer(t,n,r):(n=t.parent)&&(this.tree.splaySingleLayer(t,n),t.parent=null),t.parent?(this.update(),t.active=!0,setTimeout(()=>{this._splayAsync(t,e)},this.commonParams.interval)):(this.tree._root=t,this.update(),t.active=!0,this.locks.rotateLock=!1,setTimeout(()=>{"function"==typeof e&&e(t)},this.commonParams.interval))},onTopHelp(t){this.alertAsync(t,5e3)},onTopProper(){let t=k.properTraversal(this.tree.root());for(let e=0;e<t.length;e++)t[e]=t[e]?t[e].data:null;let 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e?(t==e.lc?e.lc=null:e.rc=null,this.updateHeightAbove(e)):this._root=null,this._size-=t.size(),t.size()}insertAsRoot(t){return this._root=new b(t),this._size=1,this._root}insertAsLC(t,e,n=!0){return this._size++,t.insertAsLC(e),n&&this.updateHeightAbove(t),t.lc}insertAsRC(t,e,n=!0){return this._size++,t.insertAsRC(e),n&&this.updateHeightAbove(t),t.rc}reAttachAsLC(t,e){t.lc=e,e&&(e.parent=t)}reAttachAsRC(t,e){t.rc=e,e&&(e.parent=t)}calStructInfo(){let t=[],e=[[],[]],n=[],r=[[],[]],i={nodes:t,edges:e,extrNodes:n,extrEdges:r};if(!this._root)return n.push({x:0,y:0,isRoot:!0}),i;let o=80;this._size>20?o=70:this._size>40&&(o=65);let a=80;this._root.height>10?a=70:this._root.height>20&&(a=60),this._root.y=0,this._root.active=!1,this._root.visited=!1;let s=[[this._root]];t.push(this._root);for(let e=0;;e++){let r=!0;s.push([]);for(let i=0;i<s[e].length;i++){let o=s[e][i],c=a*(e+1);if(void 0===o.lc){s[e+1].push({x:o.x,y:c,parent:o});continue}o.active=!1,o.visited=!1;let l=6*Math.max(0,o.data.toString().length-2);if(o.lc)r=!1,o.lc.x=o.x-l,o.lc.y=c,s[e+1].push(o.lc),t.push(o.lc);else{let t={x:o.x-l,y:c,parent:o,isLC:!0};s[e+1].push(t),n.push(t)}if(o.rc)r=!1,o.rc.x=o.x+l,o.rc.y=c,s[e+1].push(o.rc),t.push(o.rc);else{let t={x:o.x+l,y:c,parent:o,isLC:!1};s[e+1].push(t),n.push(t)}}if(r)break}let c,l=s[s.length-1],u=l[1].x-l[0].x;for(let t=1;t<l.length;t++)c=u,u=t<l.length-1?l[t+1].x-l[t].x:0,l[t].x=l[t-1].x+o,c>0&&(l[t].x+=c);for(let t=s.length-1;t>=1;t--){let e=s[t];for(let t=0;t<e.length;){let n=e[t].parent;t<e.length-1&&n==e[t+1].parent?(n.x=Math.floor((e[t].x+e[t+1].x)/2),t+=2):(e[t].parent.x=e[t].x,t++)}}let f=this._root.x;this._root.x=0;for(let t=s.length-1;t>=1;t--){let e=s[t];for(let t=0;t<e.length;t++)e[t].x-=f,void 0!==e[t].lc&&this.updateHeight(e[t])}this.updateHeight(this._root);for(let t=s.length-1;t>=1;t--){let n=s[t];for(let t=0;t<n.length;){let i=n[t].parent;if(t<n.length-1&&i==n[t+1].parent){let o=[n[t].x,i.y,i.x-n[t].x,a-29];void 0===n[t].lc?r[0].push(o):e[0].push(o);let s=[i.x,i.y,n[t+1].x-i.x,a-29];void 0===n[t+1].lc?r[1].push(s):e[1].push(s),t+=2}else t++}}return i}static buildFromTreeJsonObj(t){if(null===t._root)return new this;let e=new this(t._root.data),n=[t._root],r=[e.root()];for(;n.length>0;){let t=n.pop(),i=r.pop();t.lc&&(e.insertAsLC(i,t.lc.data).color=t.lc.color,n.push(t.lc),r.push(i.lc)),t.rc&&(e.insertAsRC(i,t.rc.data).color=t.rc.color,n.push(t.rc),r.push(i.rc))}return e}buildFromBinSequence(t){this.insertAsRoot(t[0]);let e=1,n=new w([this._root]);for(;e<t.length&&!n.empty();){let r=n.shift();null!=t[e]&&n.push(this.insertAsLC(r,t[e])),e++,null!=t[e]&&n.push(this.insertAsRC(r,t[e])),e++}}static preorderTraversal(t){let e=[],n=[t];for(;n.length>0;)for(t=n.pop();t;)e.push(t),t.rc&&n.push(t.rc),t=t.lc;return e}static inorderTraversal(t){let e=[],n=[];for(;t||n.length>0;){for(;t;)n.push(t),t=t.lc;t=n.pop(),e.push(t),t=t.rc}return e}static postorderTraversal(t){let e=[],n=[t];for(;n.length>0;){if(t.parent!=n[n.length-1])for(t=n[n.length-1];t;)t.rc&&n.push(t.rc),t.lc&&n.push(t.lc),t=t.lc?t.lc:t.rc;t=n.pop(),e.push(t)}return e}static levelTraversal(t){let e=[],n=new w([t]);for(;!n.empty();)t=n.shift(),e.push(t),t.lc&&n.push(t.lc),t.rc&&n.push(t.rc);return e}static properTraversal(t){let e=[],n=new w([t]);for(;!n.empty();)t=n.shift(),e.push(t),t&&(n.push(t.lc),n.push(t.rc));return e}static genSampleTree(){let t=new k(Math.ceil(20*Math.random())),e=[t.root()],n=Math.random()<.5?Math.ceil(4*Math.random()):Math.ceil(15*Math.random());for(let r=0;r<n;r++){let r=Math.floor(Math.random()*e.length),i=e[r];i.lc||e.push(t.insertAsLC(i,Math.ceil(5*Math.random()*n))),i.rc||e.push(t.insertAsRC(i,Math.ceil(5*Math.random()*n))),e.splice(r,1)}return t}static checkValidity(t){return[!0,""]}}window.BinTree=k;class $ extends k{connect34(t,e,n,r,i,o,a){return this.reAttachAsLC(t,r),this.reAttachAsRC(t,i),this.updateHeight(t),this.reAttachAsLC(n,o),this.reAttachAsRC(n,a),this.updateHeight(n),this.reAttachAsLC(e,t),this.reAttachAsRC(e,n),this.updateHeight(e),e}rotateAt(t){let e=t.parent,n=e.parent,r=n.parent,i=_.isLC(n);return(t=_.isLC(e)?_.isLC(t)?this.connect34(t,e,n,t.lc,t.rc,e.rc,n.rc):this.connect34(e,t,n,e.lc,t.lc,t.rc,n.rc):_.isLC(t)?this.connect34(n,t,e,n.lc,t.lc,t.rc,e.rc):this.connect34(n,e,t,n.lc,e.lc,t.lc,t.rc)).parent=r,r?i?r.lc=t:r.rc=t:this._root=t,t}searchIn(t,e){for(;t&&t.data!=e;)this._hot=t,t=e<t.data?t.lc:t.rc;return t}search(t){return this._hot=null,this.searchIn(this._root,t)}staticSearch(t){return this._hot=null,this.searchIn(this._root,t)}insert(t){let e=this.search(t);return e||(e=new b(t,this._hot),this._size++,this._root?t<this._hot.data?this._hot.lc=e:this._hot.rc=e:this._root=e,this.updateHeightAbove(e),e)}removeAt(t){let e=t;return t.lc?t.rc?(e=e.succ(),t.data=e.data,t=e.rc):t=t.lc:t=t.rc,this._hot=e.parent,t&&(t.parent=this._hot),this._hot?_.isLC(e)?this._hot.lc=t:this._hot.rc=t:this._root=t,t}remove(t){let e=this.search(t);return!!e&&(this.removeAt(e),this._size--,this.updateHeightAbove(this._hot),!0)}static genSampleTree(){let t=Math.random()<.5?Math.ceil(8*Math.random()):Math.ceil(30*Math.random()),e=Math.ceil(30*Math.random()+t),n=new this(e);for(let r=0;r<t;r++)Math.random()<.5?n.insert(e-Math.ceil(Math.random()*e)):n.insert(e+Math.ceil(Math.random()*e));return n}static checkUnique(t){if(0===t.length)return!0;let e=t[0].data.toString(),n={curData:!0};for(let r=0;r<t.length-1;r++){if(e=t[r+1].data.toString(),n[e])return!1;n[e]=!0}return!0}static checkValidity(t){let e,n=this.inorderTraversal(t.root()),r=!0,i=null;this.checkUnique(n)||(e="WARNING: 当前实现禁止重复值!");for(let t=0;t<n.length-1;t++)if(n[t].data>=n[t+1].data){r=!1,i=n[t];break}return e=null===i?"":`WARNING: 节点${i.data}处不满足顺序性!`,[r,e]}}window.BST=$;class T extends ${static avlBalanced(t){let e=_.stature(t.lc)-_.stature(t.rc);return-2<e&&e<2}insert(t){if(!this._root)return this._size++,this._root=new b(t);let e=this.search(t);return e||(e=new b(t,this._hot),this._size++,t<this._hot.data?this._hot.lc=e:this._hot.rc=e,this.solveInsertUnbalance(),e)}solveInsertUnbalance(){for(let t=this._hot;t;t=t.parent){if(!T.avlBalanced(t)){this.rotateAt(_.tallerChild(_.tallerChild(t)));break}this.updateHeight(t)}}remove(t){let e=this.search(t);return!!e&&(this.removeAt(e),this._size--,this.solveRemoveUnbalance(),!0)}solveRemoveUnbalance(){for(let t=this._hot;t;t=t.parent)T.avlBalanced(t)||this.rotateAt(_.tallerChild(_.tallerChild(t))),this.updateHeight(t)}static genSampleTree(){let t=new T,e=5+(Math.random()<.5?Math.ceil(4*Math.random()):Math.ceil(15*Math.random()));for(let n=0;n<e;n++)t.insert(Math.ceil(5*Math.random()*e));return t}static checkValidity(t){let e=$.checkValidity(t);if(!e[0])return e;let n=!0,r=this.inorderTraversal(t.root()),i=null;for(let t=0;t<r.length;t++)if(!this.avlBalanced(r[t])){n=!1,i=r[t];break}return[n,null===i?"":`节点${i.data}处不满足AVL平衡!`]}}window.AVL=T;class C extends ${splay(t){if(!t)return null;let e,n;for(;(e=t.parent)&&(n=e.parent);)this.splayDoubleLayer(t,e,n);return(e=t.parent)&&this.splaySingleLayer(t,e),t.parent=null,t}splayDoubleLayer(t,e,n){let r=n.parent;return t==e.lc?e==n.lc?(this.reAttachAsLC(n,e.rc),this.reAttachAsLC(e,t.rc),this.reAttachAsRC(e,n),this.reAttachAsRC(t,e)):this.connect34(n,t,e,n.lc,t.lc,t.rc,e.rc):e==n.lc?this.connect34(e,t,n,e.lc,t.lc,t.rc,n.rc):(this.reAttachAsRC(n,e.lc),this.reAttachAsRC(e,t.lc),this.reAttachAsLC(e,n),this.reAttachAsLC(t,e)),r?n==r.lc?this.reAttachAsLC(r,t):this.reAttachAsRC(r,t):t.parent=null,this.updateHeight(n),this.updateHeight(e),this.updateHeight(t),t}splaySingleLayer(t,e){return t==e.lc?(this.reAttachAsLC(e,t.rc),this.reAttachAsRC(t,e)):(this.reAttachAsRC(e,t.lc),this.reAttachAsLC(t,e)),this.updateHeight(e),this.updateHeight(t),t}search(t){let e=this.searchIn(this._root,t);return this._root=this.splay(e||this._hot)}insert(t){return this._root?t==this.search(t).data?this._root:this.insertSplitRoot(t):(this._size++,this._root=new b(t))}insertSplitRoot(t){let e=new b(t);return this._root.data<t?(this.reAttachAsRC(e,this._root.rc),this.reAttachAsLC(e,this._root),this._root.rc=null):(this.reAttachAsLC(e,this._root.lc),this.reAttachAsRC(e,this._root),this._root.lc=null),this._size++,this.updateHeightAbove(this._root),this._root=e}remove(t){if(!this._root||t!=this.search(t).data)return!1;let e=this._root;return e.rc?e.lc?(this._root=e.rc,this._root.parent=null,this.search(t),this.reAttachAsLC(this._root,e.lc)):(this._root=e.rc)&&(this._root.parent=null):(this._root=e.lc)&&(this._root.parent=null),this._size--,this._root&&this.updateHeight(this._root),!0}}window.Splay=C;let x=_.stature;class S extends ${solveDoubleRed(t){if(_.isRoot(t))return t.color=y.Black,void this.updateHeight(t);if(_.isBlack(t)||_.isBlack(t.parent))return;let e=t.parent,n=e.parent,r=_.isLC(e)?n.rc:n.lc;_.isBlack(r)?(_.isLC(e)==_.isLC(t)?e.color=y.Black:t.color=y.Black,n.color=y.Red,this.rotateAt(t)):(n.color=y.Red,e.color=r.color=y.Black,this.updateHeight(e),this.updateHeight(r),this.solveDoubleRed(n))}solveDoubleBlack(t){let e=t?t.parent:this._hot;if(!e)return;let n=t==e.rc?e.lc:e.rc;if(_.isBlack(n)){let t;if(n.lc&&_.isRed(t=n.lc)||n.rc&&_.isRed(t=n.rc)){let r=e.color;t.color=n.color=e.color=y.Black,_.isLC(n)==_.isLC(t)?n.color=r:t.color=r,this.rotateAt(t)}else n.color=y.Red,this.updateHeight(n),_.isRed(e)?(e.color=y.Black,this.updateHeight(e)):(this.updateHeight(e),this.solveDoubleBlack(e))}else{let r=_.isLC(n)?n.lc:n.rc;n.color=y.Black,e.color=y.Red,this._hot=e,this.rotateAt(r),this.solveDoubleBlack(t)}}updateHeight(t){t.height=x(t.lc)>x(t.rc)?x(t.lc):x(t.rc),_.isBlack(t)&&t.height++}insert(t){let e=this.search(t);if(e)return e;e=new b(t,this._hot,null,null,-1),this._root?t<this._hot.data?this._hot.lc=e:this._hot.rc=e:this._root=e,this._size++;let n=e;return this.solveDoubleRed(e),n}remove(t){let e=this.search(t);return!!e&&(e=this.removeAt(e),0==--this._size||(this._hot?!!_.isBlackUpdated(this._hot)||(_.isRed(e)?(e.color=y.Black,this.updateHeight(e),!0):(this.solveDoubleBlack(e),!0)):(this._root.color=y.Black,this.updateHeight(this._root),!0)))}}window.RedBlack=S;var O=new i.a({el:"#TreePlayground",data:{availTreeTypes:{BinTree:!0,BST:!0,AVL:!0,Splay:!0,RedBlack:!0},commonParams:{curTreeType:"BST",treeScale:100,interval:500},messages:{left:"",right:""},treeClassMap:{BinTree:k,BST:$,AVL:T,Splay:C,RedBlack:S},trees:{BinTree:null,BST:null,AVL:null,Splay:null,RedBlack:null},structInfo:{nodes:[],extrNodes:[],edges:[[],[]],extrEdges:[[],[]]},locks:{trvlLock:!1,rotateLock:!1},topSequence:[],BSTParams:{allowExtrInsert:!1},alertTag:0,messageTag:0},components:{binnode:l,"extr-binnode":h,"top-binnode":g},methods:{init(){if(this.alertAsync("Init "+this.curTreeType,100,!1),localStorage["temp"+this.curTreeType]){this.alertAsync("Read localStorage.",100,!1);try{let t=JSON.retrocycle(JSON.parse(localStorage["temp"+this.curTreeType]));this.tree=this.curTreeClass.buildFromTreeJsonObj(t)}catch(t){this.alertAsync("Error reading localStorage."),this.loadSampleTree()}}else this.alertAsync("Load default tree.",100,!1),this.loadSampleTree();this.reset(!1)},reset(t=!0){t&&(this.messages={left:"",right:""},this.topSequence=[]),this.alertAsync("Reset",150,!1),this.isDragging=!1;for(let t in this.locks)this.locks[t]=!1;this.update()},update(){console.log("Update"),this.structInfo=this.tree.calStructInfo(),localStorage["temp"+this.curTreeType]=JSON.stringify(JSON.decycle(this.tree)),localStorage.commonParams=JSON.stringify(this.commonParams)},loadSampleTree(){this.showMessage(`Load Sample ${this.curTreeType}`,1e3),this.tree=this.curTreeClass.genSampleTree()},alertAsync(t,e=1500,n=!0){if(""===this.messages.right||n){this.messages.right=t;let n=++this.alertTag;e>0&&setTimeout((t=n)=>{t===this.alertTag&&(this.messages.right="")},e)}else setTimeout(()=>{this.alertAsync(t,e,!1)},100)},showMessage(t,e=-1,n=!0){if(""===this.messages.left||n){this.messages.left=t;let n=++this.messageTag;e>0&&setTimeout((t=n)=>{t===this.messageTag&&(this.messages.left="")},e)}else setTimeout(()=>{this.showMessage(t,e,!1)},100)},traversal(t){if(this.isAnyLocked())return!1;let e;this.update(),this.locks.trvlLock=!0,0===t?e=k.preorderTraversal(this.tree.root()):1==t?e=k.inorderTraversal(this.tree.root()):2==t?e=k.postorderTraversal(this.tree.root()):3==t&&(e=k.levelTraversal(this.tree.root())),this.topSequence=[],this.messages.left=0==t?"先序遍历":1==t?"中序遍历":2==t?"后续遍历":3==t?"层次遍历":"",this._printSequenceAsyc(e,()=>{this.locks.trvlLock=!1,this.messages.left=""})},_printSequenceAsyc(t,e){if(0==t.length)return setTimeout(()=>{this.update()},2*this.commonParams.interval),void("function"==typeof e&&e());if(!this.locks.trvlLock)return!1;let n=t.shift();this.topSequence.push(n.data),n.active=!0,setTimeout(()=>{n.active=!1,this.locks.trvlLock&&(n.visited=!0),this._printSequenceAsyc(t,e)},this.commonParams.interval)},onIntrUpdate(t){if(this.isAnyLocked())return!1;this.update();let e=t[0],n=t[1],r=`Change ${e.data} to ${n}`;if("BinTree"!==this.curTreeType){if(this.tree.staticSearch(n))return this.alertAsync(`${n} Exists!`),!1;if(!this.checkNodeOrder(e,n))return!1}e.data=n,this.update(),this.messages.left=r,e.active=!0},onExtrInsert(t){this.update();let e=t[0],n=t[1],r=t[2],i=this.curTreeType;if("Splay"===i)return this.alertAsync("Can't insert at external nodes in SplayTree.",3e3),!1;if("BinTree"!==i){if(this.tree.staticSearch(n))return this.alertAsync(`${n} Exists!`),!1;if(!this.checkNodeOrder(e,n))return!1}var o,a;o="BinTree"===i||"BST"===i,a=e.isRoot?this.tree.insertAsRoot(n,o):e.isLC?this.tree.insertAsLC(e.parent,n,o):this.tree.insertAsRC(e.parent,n,o),"AVL"===i?this.tree.solveInsertUnbalance():"RedBlack"===i&&this.tree.solveDoubleRed(a),this.update(),a.active=!0,this.messages.left=`Insert ${n}`,"function"==typeof r&&r(!0)},onRemoveBelow(t){if(this.isAnyLocked())return!1;this.tree.removeBelow(t),this.update(),this.showMessage(`Remove Below ${t.data}`)},onRemoveOne(t){if(this.isAnyLocked())return!1;if(this.showMessage(`Remove ${t.data}`),"RedBlack"===this.curTreeType)this.tree.remove(t.data),this.update();else if("Splay"===this.curTreeType)this.alertAsync(`Step 1: Splay ${t.data}`,-1),t.active=!0,setTimeout(()=>{this.locks.rotateLock=!0,this._splayAsync(t,e=>{if(void 0===e)return!1;if(null===e)throw"Error in RemoveOne";let n=e,r=this.tree;r._size--,n.rc&&n.rc?(t.active=!1,t.deprecated=!0,this.locks.trvlLock=!0,this.alertAsync(`Step 2: Elevate Succ of ${t.data}`,-1),this._searchAsync(n.rc,n.data,(e,i)=>{this.locks.rotateLock=!0,this._splayAsync(i,e=>{this.alertAsync(`Step 3: Finally remove ${t.data}`,2500),r.reAttachAsLC(e,n.lc),this.update()})})):(n.rc?(r._root=n.rc)&&(r._root.parent=null):(r._root=n.lc)&&(r._root.parent=null),this.alertAsync(`Final: remove ${t.data}`,2500),this.update())})},this.commonParams.interval);else if(t.lc&&t.rc){this.alertAsync("Step 1: Find Succ",-1);let e=t.succ();t.deprecated=!0,this.locks.trvlLock=!0,this._searchAsync(t,e.data,()=>{this.alertAsync("Step 2: Swap with Succ",-1),this.update(),t.deprecated=!0,e.active=!0,setTimeout(()=>{let n=t.data;t.data=e.data,e.data=n,t.deprecated=!1,e.active=!1,t.active=!0,e.deprecated=!0,this.alertAsync(`Step 3: Remove ${n}`,2500),setTimeout(()=>{this.tree.removeAt(e),this.update(),"AVL"===this.curTreeType&&(this.alertAsync("Step 4: AVL reBalance",-1),this.tree._hot&&(this.tree._hot.active=!0),setTimeout(()=>{this.locks.rotateLock=!0,this.avlRmRotateAsync(this.tree._hot,()=>{this.alertAsync("AVL Balanced again."),this.update()})},this.commonParams.interval))},this.commonParams.interval)},this.commonParams.interval)})}else this.tree.removeAt(t),this.tree._size--,this.alertAsync(`${t.data} Removed.`,2500),this.update(),"AVL"===this.curTreeType&&(this.alertAsync(`${t.data} Removed, solve AVL Unbalance`,-1),setTimeout(()=>{this.locks.rotateLock=!0,this.avlRmRotateAsync(this.tree._hot,()=>{this.alertAsync("AVL Balanced again."),this.update()})},this.commonParams.interval))},avlRmRotateAsync(t,e){if(!t||!this.locks.rotateLock||"AVL"!==this.curTreeType)return this.locks.rotateLock=!1,void("function"==typeof e&&e());t.active=!0,setTimeout(()=>{let n=this.commonParams.interval;T.avlBalanced(t)?n=0:this.tree.rotateAt(_.tallerChild(_.tallerChild(t))),this.tree.updateHeight(t),this.update(),t.active=!0,setTimeout(()=>{t.active=!1,this.avlRmRotateAsync(t.parent,e)},n)},this.commonParams.interval)},onTopBuild(t){"BinTree"!==this.curTreeType&&this.alertAsync("请自行保证合法性, 不合法的树会造成操作异常.",2500),this.tree.buildFromBinSequence(t),this.update(),this.messages.left="真二叉树层次序列构建";let e=this.curTreeClass.checkValidity(this.tree);e[0]||this.alertAsync(e[1],2500)},onTopInsert(t){return!this.isAnyLocked()&&("BinTree"===this.curTreeType?(this.alertAsync("BinTree can't insert."),!1):(console.log("Insert by sequence"),this.update(),this.topSequence=t,void this.insertSequnceAsync()))},insertSequnceAsync(){for(;this.topSequence.length>0&&null===this.topSequence[0];)this.topSequence.shift();if(0===this.topSequence.length)return this.locks.trvlLock=!1,!1;let t=this.topSequence.shift();this.messages.left=`Insert ${t}`,this.alertAsync(`Step 1: Search ${t}`,-1),this.locks.trvlLock=!0,this.tree._hot=null,this._searchAsync(this.tree.root(),t,(e,n)=>{let r=null;"Splay"===this.curTreeType?(this.alertAsync(n?`Step 2: Splay at ${n.data}`:"",-1),setTimeout(()=>{this.locks.rotateLock=!0,this._splayAsync(n,i=>{if(e)this.alertAsync(`${t} Exists`),r=n;else{if(void 0===i)return!1;this.alertAsync(`Final: ${t} Inserted`,2500),r=null===i?this.tree.insertAsRoot(t):this.tree.insertSplitRoot(t)}setTimeout(()=>{if(this.update(),0===this.topSequence.length)return r.active=!0,this.locks.trvlLock=!1,!1;this.insertSequnceAsync()},this.commonParams.interval)})},this.commonParams.interval)):(e?(this.alertAsync(`${t} Exists`),r=n):(r=this.tree.insert(t),this.alertAsync(`Final: ${t} Inserted`,2500)),setTimeout(()=>{if(this.update(),0===this.topSequence.length)return r.active=!0,this.locks.trvlLock=!1,!0;this.insertSequnceAsync()},this.commonParams.interval))})},onTopSearch(t){if(this.isAnyLocked())return!1;this.update(),this.locks.trvlLock=!0,this.messages.left=`Search ${t}`,this.tree._hot=null,this._searchAsync(this.tree.root(),t,(e,n)=>{e?this.alertAsync(`${t} Found`):Math.random()<.5?this.alertAsync(`${t} Not Found`):this.alertAsync(`${t} 404`),"Splay"===this.curTreeType&&(this.alertAsync(n?`Splay at ${n.data}`:"",2e3),setTimeout(()=>{this.locks.rotateLock=!0,this._splayAsync(n)},this.commonParams.interval))})},_searchAsync(t,e,n){return this.locks.trvlLock&&t?(t.active=!0,e===t.data?(this.locks.trvlLock=!1,"function"==typeof n&&n(!0,t),!0):(this.tree._hot=t,void setTimeout(()=>{t.active=!1,t.visited=!0,t=e<t.data?t.lc:t.rc,this._searchAsync(t,e,n)},this.commonParams.interval))):(this.locks.trvlLock=!1,"function"==typeof n&&n(!1,this.tree._hot),!1)},_splayAsync(t,e){if(!t)return this.locks.rotateLock=!1,"function"==typeof e&&e(null),!1;if(!this.locks.rotateLock)return"function"==typeof e&&e(void 0),!1;let n,r;(n=t.parent)&&(r=n.parent)?this.tree.splayDoubleLayer(t,n,r):(n=t.parent)&&(this.tree.splaySingleLayer(t,n),t.parent=null),t.parent?(this.update(),t.active=!0,setTimeout(()=>{this._splayAsync(t,e)},this.commonParams.interval)):(this.tree._root=t,this.update(),t.active=!0,this.locks.rotateLock=!1,setTimeout(()=>{"function"==typeof e&&e(t)},this.commonParams.interval))},onTopHelp(t){this.alertAsync(t,5e3)},onTopProper(){let t=k.properTraversal(this.tree.root());for(let e=0;e<t.length;e++)t[e]=t[e]?t[e].data:null;let e=t.length-1;for(;null===t[e];)e--;t.splice(e+1),this.topSequence=t},onTreeMouseDown(t){if(0!==t.button&&"touchstart"!==t.type)return this.isDragging=!1,!1;switch(console.log("Start dragging"),this.treeXY=[this.$refs.tree.offsetLeft,this.$refs.tree.offsetTop],t.type){case"mousedown":this.mouseXY=[t.clientX,t.clientY];break;case"touchstart":this.mouseXY=[t.touches[0].clientX,t.touches[0].clientY];break;default:return}this.isDragging=!0},onTPMouseMove(t){if(this.isDragging){let e;switch(t.type){case"mousemove":e=[t.clientX,t.clientY];break;case"touchmove":e=[t.touches[0].clientX,t.touches[0].clientY];break;default:return}this.$refs.tree.style.left=this.treeXY[0]+e[0]-this.mouseXY[0]+"px",this.$refs.tree.style.top=this.treeXY[1]+e[1]-this.mouseXY[1]+"px"}},onTPMouseUp(t){this.isDragging&&(console.log("End dragging"),this.isDragging=!1)},assertNumber:t=>("string"==typeof t&&(t=t.trim()),""===t?null:(t=Number(t),isNaN(t)?null:t>666666666666?666666666666:t<-52013141516?-52013141516:t)),strToArr(t){if(""===(t=t.trim()))return null;let e=t.split(/,|，/);for(let t=0;t<e.length;t++)e[t]=this.assertNumber(e[t]);return e},isAnyLocked(){for(let t in this.locks)if(this.locks[t])return alert("In Operation! Dont do this again!"),!0;return!1},checkNodeOrder(t,e){let n,r,i=t.isLC||_.isLC(t);if(void 0===t.lc){if(!0===i&&e>t.parent.data||!0===i&&(n=t.parent.pred())&&e<n.data||!1===i&&e<t.parent.data||!1===i&&(r=t.parent.succ())&&e>r.data)return this.alertAsync("Must maintain order.",2500),!1}else if((n=t.pred())&&e<n.data||(r=t.succ())&&e>r.data)return this.alertAsync("Must maintain order.",2500),!1;return!0},nodeColorClass(t){return"RedBlack"===this.curTreeType?t==y.Red?"red-node":"black-node":"normal-color-node"}},computed:{tree:{get(){return this.trees[this.curTreeType]},set(t){this.trees[this.curTreeType]=t}},curTreeType:{get(){return this.commonParams.curTreeType},set(t){this.commonParams.curTreeType=t,this.init()}},treeScale:{get(){return this.commonParams.treeScale},set(t){this.commonParams.treeScale=t}},curTreeClass(){return this.treeClassMap[this.curTreeType]},adjustScale(){return`transform:scale(${this.treeScale/100})`}},watch:{commonParams:{handler(){localStorage.commonParams=JSON.stringify(this.commonParams)},deep:!0}},mounted(){try{this.commonParams=JSON.parse(localStorage.commonParams)}catch(t){}null==this.availTreeTypes[this.curTreeType]&&(this.curTreeType="BST"),this.init()}});window.tp=O}]);
\ No newline at end of file