idioms/idiom/temp/programming/packer-driver/targets/preview/chunks/df/df48ec67964f126550b0d5d71bec2b4cfc027d50.js

System.register(["cc"], function (_export, _context) {
  "use strict";

  var _cclegacy, Queue, Deque, _crd;

  _export({
    default: void 0,
    Deque: void 0
  });

  return {
    setters: [function (_cc) {
      _cclegacy = _cc.cclegacy;
    }],
    execute: function () {
      _crd = true;

      _cclegacy._RF.push({}, "16900mmPzlPkZiuO57PxvRs", "Queue", undefined);

      _export("default", Queue = class Queue {
        constructor() {
          this.count = void 0;
          this.lowestCount = void 0;
          this.items = void 0;
          this.count = 0;
          this.lowestCount = 0;
          this.items = {};
        }
        /**加入队列*/


        enqueue(item) {
          // 队列的末尾添加元素: 将队列的大小作为key
          this.items[this.count] = item;
          this.count++;
        }
        /**拿出队首*/


        dequeue() {
          if (this.isEmpty()) {
            return undefined;
          }

          var result = this.items[this.lowestCount]; // 删除队首元素

          delete this.items[this.lowestCount]; // 队首元素自增

          this.lowestCount++;
          return result;
        }
        /**是否为空队列*/


        isEmpty() {
          return this.count - this.lowestCount === 0;
        }
        /**查看下一个出队元素 */


        peek() {
          if (this.isEmpty()) {
            return undefined;
          }

          return this.items[this.lowestCount];
        }
        /**队列个数*/


        size() {
          return this.count - this.lowestCount;
        }
        /**清空队列*/


        clear() {
          this.count = 0;
          this.lowestCount = 0;
          this.items = {};
        }

        toString() {
          if (this.isEmpty()) {
            return "";
          }

          var objString = "" + this.items[this.lowestCount];

          for (var i = this.lowestCount + 1; i < this.count; i++) {
            objString = objString + "," + this.items[i];
          }

          return objString;
        }

      });
      /**
       * 双端队列
       */


      _export("Deque", Deque = class Deque {
        constructor() {
          this.items = void 0;
          this.lowestCount = void 0;
          this.count = void 0;
          this.items = {};
          this.lowestCount = 0;
          this.count = 0;
        }
        /**
         * 向队列的尾端添加元素
         * @param element
         * @returns size
         */


        addTail(element) {
          this.items[this.count++] = element;
          return this.size();
        }
        /**
         * 向队列头部添加元素
         * @param element
         * @returns size
         */


        addHead(element) {
          if (this.count === 0) {
            this.addTail(element);
          } else if (this.lowestCount > 0) {
            this.items[--this.lowestCount] = element;
          } else {
            for (var i = this.count; i > this.lowestCount; i--) {
              this.items[i] = this.items[i - 1];
            }

            this.count++;
            this.items[0] = element;
          }

          return this.size();
        }
        /**
         * 返回队列尾部的元素
         * @returns T
         */


        getTail() {
          if (this.isEmpty()) return undefined;
          this.count--;
          var res = this.items[this.count];
          delete this.items[this.count];
          return res;
        }
        /**
         * 返回头部元素
         * @returns T
         */


        getHead() {
          if (this.isEmpty()) return undefined;
          var res = this.items[this.lowestCount];
          delete this.items[this.lowestCount];
          this.lowestCount++;
          return res;
        }
        /**
         * 看一下队列首部的元素
         * @returns T
         */


        peekHead() {
          if (this.isEmpty()) return undefined;
          return this.items[this.lowestCount];
        }
        /**
         * 看一下队列尾部的元素
         * @return T
         */


        peekTail() {
          if (this.isEmpty()) return undefined;
          return this.items[this.count - 1];
        }
        /**
         * 返回元素的个数
         * @returns number
         */


        size() {
          return this.count - this.lowestCount;
        }
        /**
         * 判断队列是否为空
         */


        isEmpty() {
          return this.size() === 0;
        }
        /**
         * 清空队列
         */


        clear() {
          this.items = {};
          this.count = this.lowestCount = 0;
        }

        toString() {
          if (this.isEmpty()) {
            return '';
          }

          var res = this.items[this.lowestCount].toString();

          for (var i = this.lowestCount + 1; i < this.count; i++) {
            res = res + ", " + this.items[i].toString();
          }

          return res;
        }

      });

      _cclegacy._RF.pop();

      _crd = false;
    }
  };
});
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