Help me in solving FAVOURITENUM problem

help
,
1

My issue

if a/7 then what should we write to find if a is divisible by 7 or not

My code

#include <bits/stdc++.h>
using namespace std;

int main() {
    int t;
    cin>>t;
    while(t--){
        int a;
        cin>>a;
        // your code goes here
        if (a/2==0 && a/7==){
            cout<<"ALICE"<<endl;
        }
        else if(a/2==1 && a/9==){
            cout<<"BOB"<<endl;
            
        }
        else{
            cout<<"CHARLIE"<<endl;
            
        }
    }
return 0;
}

Learning course: Basic Math using C++
Problem Link: Favourite Numbers Practice Problem in - CodeChef

2

include <bits/stdc++.h>
using namespace std;

int main() { //Program written in c++
int t;
cin>>t;
while(t–){
int a;
cin>>a;
if(a%2==0 && a%7==0)
// a%2==0 declare even number and a%7==0 shows multiple of 7
cout<<“Alice”<<endl;
else if(a%2!=0 && a%9==0)
// a%2!=0 declare odd number and a%9==0 shows multiple of 9
cout<<“Bob”<<endl;
else
cout<<“Charlie”<<endl;
}
return 0;

}

3

write in this place a%7==0 for multiple of 7