The Hurdle Race in Algorithm | HackerRank Programming Solutions | HackerRank Problem Solving Solutions in Java [💯Correct]

Hello Programmers/Coders, Today we are going to share solutions of Programming problems of HackerRank, Algorithm Solutions of Problem Solving Section in Java. At Each Problem with Successful submission with all Test Cases Passed, you will get an score or marks. And after solving maximum problems, you will be getting stars. This will highlight your profile to the recruiters.

In this post, you will find the solution for The Hurdle Race in Java-HackerRank Problem. We are providing the correct and tested solutions of coding problems present on HackerRank. If you are not able to solve any problem, then you can take help from our Blog/website.

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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 ProblemThe Hurdle Race – Hacker Rank Solution

The Hurdle Race– Hacker Rank Solution

Problem:

A video player plays a game in which the character competes in a hurdle race. Hurdles are of varying heights, and the characters have a maximum height they can jump. There is a magic potion they can take that will increase their maximum jump height by  unit for each dose. How many doses of the potion must the character take to be able to jump all of the hurdles. If the character can already clear all of the hurdles, return .

Example

image 76

Function Description

Complete the hurdleRace function in the editor below.

hurdleRace has the following parameter(s):

  • int k: the height the character can jump naturally
  • int height[n]: the heights of each hurdle

Returns

  • int: the minimum number of doses required, always  or more

Input Format

The first line contains two space-separated integers  and , the number of hurdles and the maximum height the character can jump naturally.
The second line contains  space-separated integers  where .

Constraints

Sample Input 0

5 4
1 6 3 5 2

Sample Output 0

2

Explanation 0

Dan’s character can jump a maximum of  units, but the tallest hurdle has a height of :

image

To be able to jump all the hurdles, Dan must drink  doses.

Sample Input 1

5 7
2 5 4 5 2

Sample Output 1

0

Explanation 1

Dan’s character can jump a maximum of  units, which is enough to cross all the hurdles:

image

Because he can already jump all the hurdles, Dan needs to drink 0 doses.

The Hurdle Race – Hacker Rank Solution
import java.util.Scanner;

/**
 * @author Techno-RJ
 *
 */
public class TheHurdleRace {
	public static void main(String[] args) {
		Scanner in = new Scanner(System.in);
		int n = in.nextInt();
		int k = in.nextInt();
		int sum = 0;
		for (int height_i = 0; height_i < n; height_i++) {
			int temp = in.nextInt();
			if (temp > k) {
				sum += (temp - k);
				k = temp;
			}
		}
		System.out.println(sum);
		in.close();
	}
}

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