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CIP Part 2 C#

Solution: Excel Sheet Column Title

C# solution for the Excel Sheet Column Title problem using the Math and Geometry pattern.

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Statement

Given a positive integer columnNumber, return its corresponding Excel sheet column title.

Excel column titles use letters A through Z and follow a base like numbering system where after Z the sequence continues with AA, AB, and so on.

Constraints:

  • 1≤1 \leq columnNumber ≤231−1\leq 2^{31} - 1 ...