Arrays - DS ( HackerRank )
Solution :
import java.io.*;
import java.math.*;
import java.security.*;
import java.text.*;
import java.util.*;
import java.util.concurrent.*;
import java.util.function.*;
import java.util.regex.*;
import java.util.stream.*;
import static java.util.stream.Collectors.joining;
import static java.util.stream.Collectors.toList;
class Result {
/*
* Complete the 'reverseArray' function below.
*
* The function is expected to return an INTEGER_ARRAY.
* The function accepts INTEGER_ARRAY a as parameter.
*/
public static List<Integer> reverseArray(List<Integer> a) {
// Write your code here
Collections.reverse(a);
return a;
}
}
public class Solution {
public static void main(String[] args) throws IOException {
BufferedReader bufferedReader = new BufferedReader(new
InputStreamReader(System.in));
BufferedWriter bufferedWriter = new BufferedWriter(new
FileWriter(System.getenv("OUTPUT_PATH")));
int arrCount = Integer.parseInt(bufferedReader.readLine()
.trim());
List<Integer> arr = Stream.of(bufferedReader.readLine()
.replaceAll("\\s+$", "").split(" "))
.map(Integer::parseInt)
.collect(toList());
List<Integer> res = Result.reverseArray(arr);
bufferedWriter.write(
res.stream()
.map(Object::toString)
.collect(joining(" "))
+ "\n"
);
bufferedReader.close();
bufferedWriter.close();
}
}
