LeetCode知识点总结 - 504
LeetCode 504. Base 7
| 考点 | 难度 |
|---|---|
| Array | Medium |
题目
Given an integer num, return a string of its base 7 representation.
思路
recursion
答案
classSolution{publicStringconvertToBase7(intn){if(n<0)return"-"+convertToBase7(-n);if(n<7)returnInteger.toString(n);returnconvertToBase7(n/7)+Integer.toString(n%7);}}