leetcode/java/ExcelSheetColumnTitle.java at master · sureleo/leetcode

32 lines (28 loc) · 852 Bytes

public class Solution {

public String convertToTitle(int n) {

String map = "ZABCDEFGHIJKLMNOPQRSTUVWXY";

StringBuilder sb = new StringBuilder();

while (n > 0) {

int temp = n % 26;

sb.append(map.charAt(n%26));

if (temp == 0) {

temp = 26;

}

n = (n - temp) / 26;

}

return sb.reverse().toString();

}

// This solution is way more succint than mine.

// http://www.programcreek.com/2014/03/leetcode-excel-sheet-column-title-java/

public class Solution {

public String convertToTitle(int n) {

StringBuilder sb = new StringBuilder();

while (n > 0) {

n --;

sb.append((char)(n % 26 + 'A'));

n = n / 26;

}

return sb.reverse().toString();

}

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