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Leetcode - 168. Excel Sheet Column Title

· One min read

https://leetcode.com/problems/excel-sheet-column-title/

Solution 1​

/**
 * @param {number} columnNumber
 * @return {string}
 */
var convertToTitle = function (columnNumber) {
  // String.fromCharCode(65) === "A"
  // 한 자릿수일 경우
  if (columnNumber - 1 < 26) {
    return String.fromCharCode(65 + ((columnNumber - 1) % 26));
  }

  // 두 자릿수 이상일 경우
  let result = '';
  while (columnNumber > 0) {
    const remainder = (columnNumber - 1) % 26;
    const remainderCharCode = String.fromCharCode(65 + remainder);
    result = remainderCharCode + result;
    columnNumber = parseInt((columnNumber - 1) / 26);
  }
  return result;
};

다시 봐야함