Тесты вроде бы отрабатывает , но проверку по последнему пункту не проходит .
package com.javarush.task.task22.task2207;
import java.io.BufferedReader;
import java.io.FileReader;
import java.io.IOException;
import java.io.InputStreamReader;
import java.util.Arrays;
import java.util.LinkedList;
import java.util.List;
import java.util.Scanner;
/*
Обращенные слова
*/
public class Solution {
public static List<Pair> result = new LinkedList<>();
public static void main(String[] args) throws IOException {
String[] strings;
String firstWord;
String secondWord;
StringBuilder stringBuilder = new StringBuilder();
try (BufferedReader bufferedReader = new BufferedReader(new InputStreamReader(System.in));
FileReader reader = new FileReader(bufferedReader.readLine())) {
Scanner scan = new Scanner(reader);
while (scan.hasNextLine()) {
stringBuilder.append(scan.nextLine()).append(" ");
}
}
strings = stringBuilder.toString().split(" ");
List<String> list = new LinkedList(Arrays.asList(strings));
while (list.size() > 1) {
firstWord = list.remove(0);
secondWord = new StringBuffer(firstWord).reverse().toString();
for (int i = 0; i < list.size(); i++) {
if (list.get(i).equals(secondWord)) {
Pair pair = new Pair();
pair.first = firstWord;
pair.second = secondWord;
list.remove(secondWord);
result.add(pair);
}
}
}
}
public static class Pair {
String first;
String second;
public Pair() {
}
@Override
public boolean equals(Object o) {
if (this == o) return true;
if (o == null || getClass() != o.getClass()) return false;
Pair pair = (Pair) o;
if (first != null ? !first.equals(pair.first) : pair.first != null) return false;
return second != null ? second.equals(pair.second) : pair.second == null;
}
@Override
public int hashCode() {
int result = first != null ? first.hashCode() : 0;
result = 31 * result + (second != null ? second.hashCode() : 0);
return result;
}
@Override
public String toString() {
return first == null && second == null ? "" :
first == null ? second :
second == null ? first :
first.compareTo(second) < 0 ? first + " " + second : second + " " + first;
}
}
}