DIY: String to Integer (atoi)
Explore how to build a function that converts a string into a 32-bit signed integer. Understand handling leading spaces, optional plus or minus signs, invalid characters, and integer limits to prepare for related coding interview questions.
We'll cover the following...
We'll cover the following...
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, ...