source_code: 
  import java.util.Arrays;
  import java.util.Scanner;
  
  public class A {
      public static void main(String[] args) {
          Scanner in = new Scanner(System.in);
          int n = in.nextInt();
          int[] A = new int[n];
          int sum = 0;
          for (int i = 0; i < n; i++) {
              A[i] = in.nextInt();
              sum += A[i];
          }
          Arrays.sort(A);
          int cnt = 0;
          int temp = 0;
          for (int i = n - 1; i >= 0; i--) {
              temp += A[i];
              sum -= A[i];
              cnt++;
              if (temp > sum)
                  break;
          }
          System.out.println(cnt);
      }
  }
  