#code C++ 2021

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             Code is here

#include<iostream>
#include<string>
using namespace std;
int main() {
    const  int a= 2021;
    int b;
    const int c= 365;
    const int d = 80;

    cout <<"Enter your date of birth: ";
    cin>>b;
    cout<<"your Age is now: "<<((a-b))<<endl;
    cout<<"your Available Age is: "<<((a - b)-d);
    cout<<"\n your Age in Days: "<<((a-b)*c);
    cout<<"\nyour Available Age in days:\n "<<(((a-b)-d)*c);
    cout<<"\nYour Age in weeks: "<<(((a - b)*c)/7)<<" weeks";
    return 0;
}