Leetcode Problem 168. Excel Sheet Column Title

168. Excel Sheet Column Title

Leetcode Solutions

Key approach of the solution

  1. Initialize an empty string result to store the column title.
  2. While columnNumber is greater than 0: a. Subtract 1 from columnNumber to adjust for the 1-based indexing of Excel columns. b. Calculate remainder as columnNumber % 26. c. Convert remainder to the corresponding character in the alphabet and prepend it to result. d. Update columnNumber to columnNumber / 26 (integer division).
  3. Return the result string, which contains the column title in the correct order.
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Alternative approach using recursion

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