I am getting TLE in codechef problem

#1

how could i optimize it

question link–https://www.codechef.com/MAY20B/problems/CHANDF

#include
#include<stdio.h>
#include
#include
#include<math.h>
#include<string.h>

using namespace std;

int main()
{
ios_base::sync_with_stdio(false);
cin.tie(NULL);

int t;
cin>>t;

while(t--)
{
    int x,y,z,maximum=0,l,r,i,cb,pos;
    cin>>x>>y>>l>>r;
    
    for(i=l;i<=r;i++)
    {
        cb=(x&i)*(y&i);
        if(cb>maximum)
        {
            maximum=cb;
            pos=i;
        }
    }
    cout<<pos<<endl;
    
}
return 0;

}