8. String to Integer (atoi)

Implement the myAtoi(string s) function, which converts a string to a 32-bit signed integer. The algorithm for myAtoi(string s) is as follows: - Whitespace: Ignore any leading whitespace (" "). - Signedness: Determine the sign by checking if the next character is '-' or '+', assuming positivity if neither present. - Conversion: Read the integer by skipping leading zeros until a non-digit chara