What's the mistake in this C++ code?

Question

https://code.sololearn.com/c4A16a11A6A1/?ref=app

Answer 1

In line number 28 u written string in single quotes thats invalid u cannot write string in single quotes . In python it's valid but not in c cpp use double quotes it will work fine.

Answer 2

Toader Alin Ionut ,

the while loop is an infinite loop, whether I enter a correct or incorrect number.