Where is the mistake

Question

#include <iostream>
using namespace std;
int main() {
string age;
cin>>age;
switch (age) {
case "ABC":
cout << "2000";
break;
case "اDEF":
cout << "1997";
break;
case "GHI":
cout << "1996";
break;
return 0;
}

Answer 1

You're missing closing curly brace (}) of the body of a switch statement.
C++ Switch Statements
Use the switch statement to select one of many code blocks to be executed.
https://www.w3schools.com/cpp/cpp_switch.asp
This is how it works:
The switch expression is evaluated once
The value of the expression is compared with the values of each case
If there is a match, the associated block of code is executed
The break and default keywords are optional

Answer 2

// Hope this link helps you
https://stackoverflow.com/questions/16388510/evaluate-a-string-with-a-switch-in-c

Answer 3

Does this mean that the switch does not work with the string?

Answer 4

Ramadan, that's right.
C++ switch statement cannot accept string as evaluation subject.
However we can create our own function to achieve somewhat similar result.
https://code.sololearn.com/cCqd6prmLX9M/?ref=app

Answer 5

No, there is another error