import java.util.*;

public class winsen {



    /* T : n^2 S: O(1)    2, 3, 5, 7, */
    public static int  countPrime(int n){
        int count=0;

        for ( int i=2; i []
      Output: "apple"

       Input: s = "abpcplea", dictionary = ["a","b","c"]
       Output: "a"
    *
    *
    *     T : O (n log(N) ).     M*N*K
    *
    *
    *
    * */

    public static String lexSmallStringByRemovingSomeCharsFromString( String str, String[] dict){

        List  possibleStrings= new ArrayList();
        for( String s : dict){            // T : O(len(dict))
            if( isPossible( str, s)) possibleStrings.add(s);
        }

        if (possibleStrings.isEmpty()) return  "";

        Collections.sort(possibleStrings , (a,b) ->  ( b.length()-a.length())  );  // T : O(nlog(n))

       System.out.println(possibleStrings);

        return  possibleStrings.stream()
                .filter(  strr -> strr.length()==possibleStrings.get(0).length())
                .sorted().findFirst().orElse("");  // T : O(nlog(n))
    }

    public  static  boolean isPossible( String str, String s){
        int m = str.length(), n= s.length(), i=0, j=0;

        while (i
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