[Hackerrank] Operators

Objective

 

In this challenge, you will work with arithmetic operators. Check out the Turtorial tab for learning materials and an instructional video.

 

Task

 

Given the meal price (base cost of a meal), tip percent (the percentage of the meal price being added as tip), and tax percent (the percentage of the meal price being added as tax) for a meal, find and print the meal's total cost. Round the result to the nearest integer.

 

Example

 

meal cost = 100

tip percent = 15

tax percent = 8

 

A tip of 15% * 100 = 15, and the taxes are 8% * 100 = 8. Print the value 123 and return from the function.

 

Function Description

 

Complete the solve function in the editor below.

 

solve has the following parameters:

• int meal_cost : the cost of food before tip and tax
• int tip_percent : the tip percentage
• int tax_percent : the tax percentage

Returns The function returns nothing. Print the calculated value, rounded to the nearest itreger.

 

Note: Be sure to use precise values for your calculations, or you may end up with an incorrectly rounded result.

 

Input Format

 

There are 3 lines of mumeric input:

The first line has a double, meal cost (the cost of the meal before tax and tip).

The second line has an integer, tip percent (the percentage of mealCost being added as tip)

The third line has an integer, tax percent(the percentage of mealCost being added as tax)

 

Sample Input

 

12.00
20
8

Sample Output

 

15

 

arithmetic : 산수

nearest : 가장가까운

 

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 'solve' function below.
     *
     * The function accepts following parameters:
     *  1. DOUBLE meal_cost
     *  2. INTEGER tip_percent
     *  3. INTEGER tax_percent
     */

    public static void solve(double meal_cost, int tip_percent, int tax_percent) {
    // Write your code here
        double tip = (meal_cost/100) * tip_percent;
        double tax = (meal_cost/100) * tax_percent;
        
        int answer = (int)Math.round(tip + tax + meal_cost);
        
        System.out.print(answer);
    }

}

public class Solution {
    public static void main(String[] args) throws IOException {
        BufferedReader bufferedReader = new BufferedReader(new InputStreamReader(System.in));

        double meal_cost = Double.parseDouble(bufferedReader.readLine().trim());

        int tip_percent = Integer.parseInt(bufferedReader.readLine().trim());

        int tax_percent = Integer.parseInt(bufferedReader.readLine().trim());

        Result.solve(meal_cost, tip_percent, tax_percent);

        bufferedReader.close();
    }
}