import java.util.*;
public class Solution {
    public boolean IsContinuous(int [] numbers) {
        Arrays.sort(numbers);
        int number0 = 0;
        int sum = 0;
        for(int i = 0;i<numbers.length;i++){
            if(numbers[i] == 0){
                number0++;
                continue;
            }
            if(i>0){
                if(numbers[i]==numbers[i-1]){
                    return false;
                }else{
                    if(numbers[i-1]!=0){
                        sum = sum+numbers[i]-numbers[i-1]-1;
                    }
                }
            }
        }
        if(number0>=sum){
            return true;
        }else{
            return false;
        }
    }
}