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Hackerrank Designer PDF Viewer Solution - Java

 Hackerrank Designer PDF Viewer Solution - Java


For Explanation Watch Video::




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 'designerPdfViewer' function below.
     *
     * The function is expected to return an INTEGER.
     * The function accepts following parameters:
     *  1. INTEGER_ARRAY h
     *  2. STRING word
     */

    public static int designerPdfViewer(List<Integer> h, String word) {
        int max = -1;
        for(int i=0;i<word.length();i++){
            char ch = word.charAt(i);
            int ascii = (int)ch - 97;
            int val = h.get(ascii);
            if(val>max){
                max = val;
            }
        }
        return word.length()*max;
    }

}

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")));

        List<Integer> h = Stream.of(bufferedReader.readLine().replaceAll("\\s+$""").split(" "))
            .map(Integer::parseInt)
            .collect(toList());

        String word = bufferedReader.readLine();

        int result = Result.designerPdfViewer(h, word);

        bufferedWriter.write(String.valueOf(result));
        bufferedWriter.newLine();

        bufferedReader.close();
        bufferedWriter.close();
    }
}

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