How to code a program which can convert a string to an integer in C++?

Question

eg:
input a string: "1234"
output an int: 1234
p/s: the string has to be inputted by the user.
Thank you!!!

Answer 1

https://code.sololearn.com/cSSK2DC4OqFj/?ref=app

this does both.(int to string, string to int) it should contain what you need

Answer 2

try to use this function stringstream name(variable);