HJ82 将真分数分解为埃及分数题目：https://www.nowcoder.com/practice/e0480b2c6aa24bfba0935ffcca3ccb7b?tpId=37&tqId=21305&rp=1&ru=/exam/oj/ta&qru=/exam/oj/ta&sourceUrl=%2Fexam%2Foj%2Fta%3Fpage%3D2%26tpId%3D37%26type%3D37&difficulty=undefined&j