Приветствую. Переписал код, потестил в идее, вроде всё хорошо. Но валидатор не пускает. Что не учёл?
package com.javarush.task.task22.task2207;
import java.io.BufferedReader;
import java.io.FileReader;
import java.io.InputStreamReader;
import java.util.ArrayList;
import java.util.Arrays;
import java.util.LinkedList;
import java.util.List;
import java.io.*;
import java.util.*;
/*
Обращенные слова
*/
public class Solution {
public static List<Pair> result = new LinkedList<>();
public static void main(String[] args) throws IOException {
StringBuilder b = new StringBuilder();
try (BufferedReader reader = new BufferedReader(new InputStreamReader(System.in));
FileReader file = new FileReader(reader.readLine());
BufferedReader fileReader = new BufferedReader(file)) {
String line = fileReader.readLine();
while (line != null) {
b.append(line);
line = fileReader.readLine();
}
}
String[] strings = b.toString().split(" ");
List<String> strs = new LinkedList<>();
strs.addAll(Arrays.asList(strings));
for (int i = 0; i < strs.size() - 1; i++) {
String reverse = new StringBuilder(strs.get(i)).reverse().toString();
for (int j = i + 1; j < strs.size(); j++) {
if (strs.get(j).equals(reverse)) {
result.add(new Pair(strs.get(i), strs.get(j)));
strs.remove(j);
strs.remove(i);
i = -1;
break;
}
}
}
for (Pair pair: result) {
System.out.println(pair);
}
}
public static class Pair {
String first;
String second;
public Pair(String first, String second) {
this.first = first;
this.second = 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;
}
}
}