How to convert a string to a number in C ++?

Answer 1

* For integer types
https://en.cppreference.com/w/cpp/string/basic_string/stol

* For floating point types
https://en.cppreference.com/w/cpp/string/basic_string/stof

Answer 2

Thank

Answer 3

Like this?
https://code.sololearn.com/c55j23OEWbze/?ref=app