Problem: 2050C - Uninteresting Number
Language: java

Solution 1 (runtime: 249 ms):
import java.io.BufferedOutputStream;
import java.io.BufferedReader;
import java.io.IOException;
import java.io.InputStreamReader;
import java.io.PrintWriter;
import java.util.*;
public class main {
    static PrintWriter pw = new PrintWriter(new BufferedOutputStream(System.out));
    static FastReader in = new FastReader();
    public static int n;  
    public static void main(String[] args) {
        int t = in.nextInt();
        while (t-- > 0) {
            String p = in.next();
            n = p.length();
            long sum = 0;
            for (int i = 0; i < n; i++) {
                int l = p.charAt(i) - '0';
                sum += l;
            }
            if (sum % 9 == 0) {
                pw.println("YES");
            } else {
                sum %= 9;
                sum = 9 - sum;

                int count2 = 0;
                int count3 = 0;
                for (int i = 0; i < n; i++) {
                    int l = p.charAt(i) - '0';
                    if (l == 2) {
                        count2++;
                    } else if (l == 3) {
                        count3++;
                    }
                }
                if (sum % 2 != 0) {
                    sum += 9;
                }
                while(count3 > 0 && sum >= 6) {
                    count3--;
                    sum -= 6;
                }
                while(count2 > 0 && sum >= 2) {
                    count2--;
                    sum -= 2;
                }
                if (sum == 0) {
                    pw.println("YES");
                } else {
                    pw.println("NO");
                }
            }
        }
        pw.close();
    }
    
    static class FastReader {
        BufferedReader br;
        StringTokenizer st;

        public FastReader() {
            br = new BufferedReader(new InputStreamReader(System.in));
        }

        String next() {
            while (st == null || !st.hasMoreElements()) {
                try {
                    st = new StringTokenizer(br.readLine());
                } catch (IOException e) {
                    e.printStackTrace();
                }
            }
            return st.nextToken();
        }

        int nextInt() {
            return Integer.parseInt(next());
        }

        long nextLong() {
            return Long.parseLong(next());
        }

        double nextDouble() {
            return Double.parseDouble(next());
        }

        String nextLine() {
            String str = "";
            try {
                str = br.readLine();
            } catch (IOException e) {
                e.printStackTrace();
            }
            return str;
        }
    }
}


Solution 2 (runtime: 296 ms):


import java.io.BufferedReader;

import java.io.IOException;

import java.io.InputStreamReader;

import java.util.*;

 

public class Main {

    static class FastReader {

        BufferedReader br;

        StringTokenizer st;

 

        public FastReader() {

            br = new BufferedReader(

                new InputStreamReader(System.in));

        }

 

        String next() {

            while (st == null || !st.hasMoreElements()) {

                try {

                    st = new StringTokenizer(br.readLine());

                }

                catch (IOException e) {

                    e.printStackTrace();

                }

            }

            return st.nextToken();

        }

 

        int nextInt() { return Integer.parseInt(next()); }

 

        long nextLong() { return Long.parseLong(next()); }

 

        double nextDouble() {

            return Double.parseDouble(next());

        }

 

        String nextLine() {

            String str = "";

            try {

                if (st.hasMoreTokens()) {

                    str = st.nextToken("\n");

                }

                else {

                    str = br.readLine();

                }

            }

            catch (IOException e) {

                e.printStackTrace();

            }

            return str;

        }

    }

    public static int check(ArrayList<Integer> arr,int i,int sum,int k,int dp[][]){

            

            if(i==arr.size()){

                return (sum+k)%9==0?1:0;

            }

            if(dp[i][sum]==-1){

            int take= check(arr,i+1,(sum+arr.get(i))%9,k,dp);

            int ntake=check(arr,i+1,sum,k,dp);

             dp[i][sum]= (take+ntake)>0?1:0;

            }

            return dp[i][sum];

    }

    public static boolean helper(ArrayList<Integer> arr,int k){

        int n=arr.size();

        int dp[][]=new int[n][10];

       

            for(int a[]:dp){

                Arrays.fill(a,-1);

            }

        return check(arr,0,0,k,dp)>0;

    }

    public static void solve(FastReader sc){

        String s=sc.next(); 

        int sum=0;

        ArrayList<Integer> arr=new ArrayList<>();

        for(char c:s.toCharArray()){

            int num=c-'0';

            sum=(sum+num)%9;

            if(num==2){

                arr.add(2);

            }

            else if(num==3){

                arr.add(6);

            }

        }

        if(sum!=0){

           if(helper(arr,sum)){

            System.out.println("YES");

           }

           else{

            System.out.println("NO");

           }

        }

        else{

            System.out.println("YES");

        }





    }

    



    

    

    public static void main(String args[]) {

        FastReader sc = new FastReader();

        int t=sc.nextInt();

        while(t-- >0){

            solve(sc);

        }

    }

}