algorithm/PuzzleCoding/src/IntToString.java at master · wodgithub/algorithm · GitHub

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/**

* A:0, B:1, C:2, ... , AA:26, AB:27, ... , given an integer, return

* corresponding string

public class IntToString {

public static void main(String[] args) {

int n = 52;

System.out.println(intToString(n));

}

public static String intToString(int n) {

StringBuilder s = new StringBuilder();

n += 1; // b/c A:0

while (n > 0) {

if (n % 26 == 0) {

s.insert(0, "Z");

n -= 26;

} else {

s.insert(0, (char) ('A' + n % 26 - 1));

}

n /= 26;

}

return s.toString();

}