Without knowing the language, it's pretty imposible to write it. Once you start thinking recursively, it's not a difficult problem.
While you're recursing, pass the string without the first character.
The base case would be a null string which would return 0.
The unwind would just add one and return that.
E-mail B is the more appropriate workplace e-mail because it’s straightforward, polite, and professional. E-mail A was more accusatory and aggressive, and many people don’t like when they’re being yelled at or accused of something and, as a result, this person may start to dislike that coworker. However, the second e-mail was more polite and made the receiver think of them as a respectful person so that they’re happy to help them out.
The nursing usually takes up to 18 months, i.e. one year and a half.
The baby dolphin may however remain with his mum for up to 3-6 years.
B. Which promotes a chemical reaction
