Не пропускает последний пункт. Пишет - проверь на словах из примера. На словах из примера все работает.
package com.javarush.task.task22.task2207;
import java.io.BufferedReader;
import java.io.FileReader;
import java.io.IOException;
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 {
Scanner scanner = new Scanner(System.in);
BufferedReader reader = new BufferedReader(new FileReader(scanner.nextLine()));
String[] strings = reader.readLine().trim().split(" ");
scanner.close();
reader.close();
for (int i = 0; i < strings.length; i++) {
if (strings[i] == null) {
continue;
}
StringBuilder firstStr = new StringBuilder(strings[i]);
for (int j = 0; j < strings.length; j++) {
if (strings[j] == null) {
continue;
}
StringBuilder secondStr = new StringBuilder(strings[j]);
if (i != j && firstStr.toString().equals(secondStr.reverse().toString())) {
Pair pair = new Pair();
pair.first = firstStr.toString();
pair.second = secondStr.reverse().toString();
result.add(pair);
strings[i] = null;
strings[j] = null;
break;
}
}
}
//System.out.println(result.toString());
}
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;
}
}
}