网易模拟第一题，0%，请各位大神指教，哪里错了

网易模拟第一题，0%，请各位大神指教，哪里错了

import java.util.Scanner; public class Main { public static void main(String[] args) {
Scanner in = new Scanner(System.in); int n = in.nextInt(); int[] num = new int[n]; for (int i = 0; i < n; i++) {
   num[i] = in.nextInt();
}
in.close(); int out[] = new int[n]; for (int i = 0; i < n; i++) { int temp = num[i]; double sum = serach(temp - 5000);
out[i] = (int) Math.round(sum);
} for (int i = 0; i < out.length; i++) {
System.out.println(out[i]);
}
} public static double serach(int x){ double sum = 0.0; if(x<=0){
            sum = 0.0;
        }else if(x>0 && x<=3000){
            sum = x * 0.03;
        }else if(x>3000 && x<=12000){
            sum = 3000 * 0.03 + (x-3000) * 0.1;
        }else if(x>12000 && x<=25000){
            sum = 3000 * 0.03 + (12000-3000) * 0.1 + (x-12000)*0.2;
        }else if(x>25000 && x<=35000){
            sum = 3000 * 0.03 + (12000-3000) * 0.1 + (25000-12000)*0.2 + (x-25000)*0.25;
        }else if(x>35000 && x<=55000){
            sum = 3000 * 0.03 + (12000-3000) * 0.1 + (25000-12000)*0.2 + (35000-25000)*0.25 + (x-35000)*0.3;
        }else if(x>55000 && x<=80000){
            sum = 3000 * 0.03 + (12000-3000) * 0.1 + (25000-12000)*0.2 + (35000-25000)*0.25 + (80000-35000)*0.3 + (x-55000)*0.35;
        }else if(x>80000){
            sum = 3000 * 0.03 + (12000-3000) * 0.1 + (25000-12000)*0.2 + (35000-25000)*0.25 + (80000-35000)*0.3 + (80000-55000)*0.35 + (x-80000)*0.45;
        } return sum;
    }
}