You can not select more than 25 topics
Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
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package class32;
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public class Problem_0171_ExcelSheetColumnNumber {
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// 这道题反过来也要会写
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public static int titleToNumber(String s) {
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char[] str = s.toCharArray();
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int ans = 0;
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for (int i = 0; i < str.length; i++) {
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ans = ans * 26 + (str[i] - 'A') + 1;
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}
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return ans;
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}
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}
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