i am getting timeout:

import java.io.; import java.util.; import java.text.; import java.math.; import java.util.regex.*;

public class Solution {

public static void main(String[] args) {
    Scanner in = new Scanner(System.in);
    int q = in.nextInt();
    int a;
    int b;
    double abratio;
    int m;
    int perfectpartition;
    int totalpartition;
    double pmratio;
    double discriminant;
    double t;
    double t4;
    double t2;
    for(int i=0;i<q;i++){
        a=in.nextInt();
        b=in.nextInt();
        abratio = (double)a/b;
        m=2;
        totalpartition=0;
        perfectpartition=0;
        for(int k=1;k<=m;k++){
            discriminant = 1+4*k;
            t=Math.log((1+Math.sqrt(discriminant))/2)/Math.log(2);
            t4=Math.round(Math.pow(4,t)*1000000d)/1000000d;
            t2=Math.round(Math.pow(2,t)*1000000d)/1000000d;;
            if(t4==(int)t4 && t2==(int)t2){
                totalpartition++;
                if(Math.round(t*1000000d)/1000000d==(int)t)
                    perfectpartition++;
            }   
            pmratio=(double)perfectpartition/totalpartition;
            if(pmratio<abratio) break;
            else m++;
        }
        System.out.println(m-1);
    }
}

}