LeetCode 171 Excel Sheet Column Number
来源:互联网 发布:文森特 梵高知乎 编辑:程序博客网 时间:2024/06/09 17:36
题目:
Related to question Excel Sheet Column Title
Given a column title as appear in an Excel sheet, return its corresponding column number.
For example:
A -> 1 B -> 2 C -> 3 ... Z -> 26 AA -> 27 AB -> 28题目链接
题意:
这道题和 168 Excel Sheet Column Title 是正反两个过程,这道题是给一个26进制的数,要你将其转化为int的整型数。
思路为从字符串的末尾开始枚举,对每一个元素依次乘上26的i-1次方,然后加到ans中,最后返回ans即可。
代码如下:
class Solution {public: int titleToNumber(string s) { int ans = 0, temp = 1; for (int i = s.length() - 1; i >= 0; i --) { ans += temp * (s[i] - 'A' + 1); temp *= 26; } return ans; }};
阅读全文
0 0
- leetcode 171: Excel Sheet Column Number
- leetcode 171-Excel Sheet Column Number
- LeetCode(171) Excel Sheet Column Number
- [leetcode 171] Excel Sheet Column Number
- leetCode#171 Excel Sheet Column Number
- leetcode--171 Excel Sheet Column Number
- [Leetcode 171, Easy]Excel Sheet Column Number
- Leetcode NO.171 Excel Sheet Column Number
- [leetcode oj 171] Excel Sheet Column Number
- leetcode-171 Excel Sheet Column Number
- LeetCode 171: Excel Sheet Column Number
- [LeetCode][171][Excel Sheet Column Number]
- LeetCode 171 Excel Sheet Column Number
- Excel Sheet Column Number - LeetCode 171
- leetcode[171]:Excel Sheet Column Number
- Excel Sheet Column Number (leetcode 171)
- LeetCode(171) Excel Sheet Column Number
- 【LeetCode】(171)Excel Sheet Column Number(Easy)
- 【java8】持续精进-之BiFunction
- JAVA笔记三:JAVA-SE上
- HDU
- css3写幻灯片css部分
- volatile关键字解析
- LeetCode 171 Excel Sheet Column Number
- 78. Subsets 详细解答
- Java servlet 表单提交乱码解决
- IMDB依存树情感分析数据集
- 【Redis深入】缓存雪崩与热点key的重建
- c++ 类型转换
- 读《代码整洁之道》笔记
- js中的事件委托和事件模拟
- 深度优先搜索(DFS)