leetcode:Excel Sheet Column Title
来源:互联网 发布:u盘数据怎么恢复 编辑:程序博客网 时间:2024/05/18 19:21
public class Solution { public String convertToTitle(int n) { String ret = ""; n--; while(n>=0) { int tmpNum = n%26; char tmpChar = (char)(tmpNum+'A'); n = n/26; ret = tmpChar + ret; n--; } return ret; }}
同样可以看做是26进制的问题,不断取余即可得到从低位到高位的各个值.....
需要注意的是余数为1对应的是"A",为了避免余数为0不好处理的情况,每一轮都要将当前的n减一
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