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BonAppétit.java
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BonAppétit.java
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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;
public class BonAppétit {
// https://www.hackerrank.com/challenges/bon-appetit/problem
// Complete the bonAppetit function below.
static void bonAppetit(List<Integer> bill, int k, int b) {
int sum = 0;
for(int i = 0; i<bill.size();i++) {
if(i == k)
continue;
sum+=bill.get(i);
}
System.out.println(b == (sum/2) ? "Bon Appetit" : (b-sum/2) );
}
public static void main(String[] args) throws IOException {
BufferedReader bufferedReader = new BufferedReader(new InputStreamReader(System.in));
String[] nk = bufferedReader.readLine().replaceAll("\\s+$", "").split(" ");
int n = Integer.parseInt(nk[0]);
int k = Integer.parseInt(nk[1]);
List<Integer> bill = Stream.of(bufferedReader.readLine().replaceAll("\\s+$", "").split(" "))
.map(Integer::parseInt)
.collect(toList());
int b = Integer.parseInt(bufferedReader.readLine().trim());
bonAppetit(bill, k, b);
bufferedReader.close();
}
}