Help me in solving AGENTCHEF problem

My issue

Time Limit is Exceeded . How do I optimize it?

My code

#include <iostream>
using namespace std;

int main() {
	// your code goes here
	int t;cin>>t;
	for(int i=0; i<t; i++){
	    int x;
	    cin>>x;
	    int sell_1 = (20/100)*x;
	    int count=0;
	    int j=0;
	    while(count !=100){
	        count += count + sell_1;
	        j++;
	        
	    }
	    cout<<j<<endl;
	    
	    
	}
	return 0;
}

Problem Link: AGENTCHEF Problem - CodeChef

Hint:
Think,
can you solve above problem without loop’s, can you try using division instead in replacement of loop,

you can look at my solution: CodeChef: Practical coding for everyone