why wont this work

Question

#include <iostream>
using namespace std;

int main()
{
try {
string name;
cin >> name;
if (name >=20 && name >=4) {
cout << "Valid" << endl;
throw 99;
}
}
catch (int x) {
cout<<"Invalid"<<endl;
}

return 0;
}

Answer 1

Mando

Name is string and 20 is a number then how you can compare?

get size of name then compare.

if size >= 20 then how it can be >=4

size should be <=20 && >= 4

Answer 2

AJ then why doesnt this work then #include <iostream>
using namespace std;

int main()
{
try {
int name;
cin >> name;
if (name<=20 && name >= 4) {
cout << "Valid" << endl;

}
else
cout << "Invalid" << endl;

}

return 0;
}

Answer 3

Mando

Name is string not int.

Mando can't be 4 or 20 it's a string

Mando >= 4 //wrong comparison
5 >= 4 //right comparison

First code is right but you need to compare size of string with 20 and 4

Notes: Read my first answer again

Answer 4

AJ
#include <iostream>
using namespace std;

int main() {
string name;
cin >> name;
try {

string str = name ;
str.size();
if (str <=20 && >= 4 ){
cout << "Valid" << endl;
}
else
cout << "Invalid"<< endl;

}
catch(int x) {

}

return 0;
}
I dont understand i followed the steps and it still doesnt work