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DIY: String to Integer (atoi)

Understand how to implement the myAtoi function in Kotlin to convert strings into 32-bit signed integers. Learn to handle leading whitespaces, optional signs, and non-numeric characters effectively, preparing you to solve common interview problems involving string-to-integer conversion.

Problem statement

In this coding exercise, you are given a string. You have to convert this string to a 32-bit signed integer. The string may have a leading whitespace. The first non-whitespace character in the string may or may not be numeric.

  • If it isn’t numeric, it may be a + or - sign, which will determine if the final result is negative or positive, ...