Create BonAppetit.java

Author: Foxeyyy

BonAppetit.java

@@ -0,0 +1,51 @@
+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 Solution {
+
+    // O(n) Time, O(1) Space
+    static void bonAppetit(List<Integer> bill, int k, int b) {
+
+        int realBill = 0;
+
+        for (int i = 0; i < bill.size(); i++) {
+            if (i == k) continue;
+            realBill += bill.get(i);
+        }
+
+        realBill /= 2;
+
+        if (realBill == b) System.out.println("Bon Appetit");
+        else System.out.println(b - realBill);
+
+    }
+
+    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();
+    }
+}