Birthday Cake Candles Hackerrank Solution Java

Birthday Cake Candles Hackerrank Solution Java

For Explanation Watch Video:

Sample Input 0

4
3 2 1 3

Sample Output 0

2

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 'birthdayCakeCandles' function below.
     *
     * The function is expected to return an INTEGER.
     * The function accepts INTEGER_ARRAY candles as parameter.
     */
    public static int birthdayCakeCandles(List<Integer> candles) {
    // Write your code here
    Collections.sort(candles);
    int count = 1;
    int largest = candles.get(candles.size()-1);
    for(int i=candles.size()-2;i>=0;i--){
        if(candles.get(i)!=largest){
            break;
        }else{
            count++;
        }
    }
    return count;
    }
}
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 candlesCount = Integer.parseInt(bufferedReader.readLine().trim());
        List<Integer> candles = Stream.of(bufferedReader.readLine().replaceAll("\\s+$", "").split(" "))
            .map(Integer::parseInt)
            .collect(toList());
        int result = Result.birthdayCakeCandles(candles);
        bufferedWriter.write(String.valueOf(result));
        bufferedWriter.newLine();
        bufferedReader.close();
        bufferedWriter.close();
    }
}