Bill Division 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 ProblemBill Division – Hacker Rank Solution

Bill Division – Hacker Rank Solution


Two friends Anna and Brian, are deciding how to split the bill at a dinner. Each will only pay for the items they consume. Brian gets the check and calculates Anna’s portion. You must determine if his calculation is correct.

For example, assume the bill has the following prices: . Anna declines to eat item  which costs . If Brian calculates the bill correctly, Anna will pay . If he includes the cost of , he will calculate . In the second case, he should refund  to Anna.

Function Description

Complete the bonAppetit function in the editor below. It should print Bon Appetit if the bill is fairly split. Otherwise, it should print the integer amount of money that Brian owes Anna.

bonAppetit has the following parameter(s):

  • bill: an array of integers representing the cost of each item ordered
  • k: an integer representing the zero-based index of the item Anna doesn’t eat
  • b: the amount of money that Anna contributed to the bill

Input Format

The first line contains two space-separated integers  and , the number of items ordered and the -based index of the item that Anna did not eat.
The second line contains  space-separated integers  where .
The third line contains an integer, , the amount of money that Brian charged Anna for her share of the bill.


image 64

Output Format

If Brian did not overcharge Anna, print Bon Appetit on a new line; otherwise, print the difference (i.e., ) that Brian must refund to Anna. This will always be an integer.

Sample Input 0

4 1
3 10 2 9

Sample Output 0


Explanation 0

image 62

Sample Input 1

4 1
3 10 2 9

Sample Output 1

Bon Appetit

Explanation 1

image 63
Bill Division – Hacker Rank Solution


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