Designer PDF Viewer in Algorithm | HackerRank Programming Solutions | HackerRank Problem Solving Solutions in Java [💯Correct]

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Introduction To Algorithm

The word Algorithm means “a process or set of rules to be followed in calculations or other problem-solving operations”. Therefore Algorithm refers to a set of rules/instructions that step-by-step define how a work is to be executed upon in order to get the expected results. 

Advantages of Algorithms:

  • It is easy to understand.
  • Algorithm is a step-wise representation of a solution to a given problem.
  • In Algorithm the problem is broken down into smaller pieces or steps hence, it is easier for the programmer to convert it into an actual program.

Link for the ProblemDesigner PDF Viewer – Hacker Rank Solution

Designer PDF Viewer – Hacker Rank Solution

Problem:

When a contiguous block of text is selected in a PDF viewer, the selection is highlighted with a blue rectangle. In this PDF viewer, each word is highlighted independently. For example:

PDF-highighting.png
image 77

Function Description

Complete the designerPdfViewer function in the editor below.

designerPdfViewer has the following parameter(s):

  • int h[26]: the heights of each letter
  • string word: a string

Returns

  • int: the size of the highlighted area

Input Format

The first line contains  space-separated integers describing the respective heights of each consecutive lowercase English letter, ascii[a-z].
The second line contains a single word consisting of lowercase English alphabetic letters.

Constraints

image 80

Sample Input 0

1 3 1 3 1 4 1 3 2 5 5 5 5 5 5 5 5 5 5 5 5 5 5 5 5 5
abc

Sample Output 0

9

Explanation 0

image 78

Sample Input 1

1 3 1 3 1 4 1 3 2 5 5 5 5 5 5 5 5 5 5 5 5 5 5 5 5 7
zaba

Sample Output 1

28

Explanation 1

image 79
Designer PDF Viewer – Hacker Rank Solution
import java.util.Scanner;

/**
 * @author Techno-RJ
 *
 */
public class DesignerPDFViewer {
	public static void main(String[] args) {
		Scanner sc = new Scanner(System.in);
		int a[] = new int[26];
		for (int i = 0; i < 26; i++) {
			a[i] = sc.nextInt();
		}
		int maxHeight = 0;
		String word = sc.next();
		for (int i = 0; i < word.length(); i++) {
			int index = word.charAt(i) - 'a';
			if (a[index] > maxHeight) {
				maxHeight = a[index];
			}
		}
		System.out.println(maxHeight * word.length());
		sc.close();
	}
}

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