Max Min Hackerrank Solution - java
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Code :
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 'maxMin' function below.
*
* The function is expected to return an INTEGER.
* The function accepts following parameters:
* 1. INTEGER k
* 2. INTEGER_ARRAY arr
*/
public static int maxMin(int k, List<Integer> arr) {
Collections.sort(arr);
Integer min = Integer.MAX_VALUE;
for(int i=0;i<=arr.size()-k;i++){
int diff = arr.get(i+k-1) - arr.get(i);
if(diff<min){
min = diff;
}
}
return min;
}
}
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 n = Integer.parseInt(bufferedReader.readLine().trim());
int k = Integer.parseInt(bufferedReader.readLine().trim());
List<Integer> arr = IntStream.range(0, n).mapToObj(i -> {
try {
return bufferedReader.readLine().replaceAll("\\s+$", "");
} catch (IOException ex) {
throw new RuntimeException(ex);
}
})
.map(String::trim)
.map(Integer::parseInt)
.collect(toList());
int result = Result.maxMin(k, arr);
bufferedWriter.write(String.valueOf(result));
bufferedWriter.newLine();
bufferedReader.close();
bufferedWriter.close();
}
}
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