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day87.java
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day87.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;
class Result {
/*
* Complete the 'viralAdvertising' function below.
*
* The function is expected to return an INTEGER.
* The function accepts INTEGER n as parameter.
*/
public static int viralAdvertising(int n) {
// Write your code here
List <Integer> days = new ArrayList<>();
for(int i = 1; i <= n; i++){
days.add(i);
}
int shared = 5;
int comulative = 0;
for (int i = 0; i < days.size(); i++){
shared = Math.floorDiv(shared,2);
comulative += shared;
shared = shared*3;
}
return comulative;
}
}
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 result = Result.viralAdvertising(n);
bufferedWriter.write(String.valueOf(result));
bufferedWriter.newLine();
bufferedReader.close();
bufferedWriter.close();
}
}