[1일1알고리즘] 6일차 Operators

Objective
In this challenge, you'll work with arithmetic operators. Check out the Tutorial 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.

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

음식가격, 팁비율, 세금비율로 총금액을 계산하는 식.

<?php

// Complete the solve function below.
function solve($meal_cost, $tip_percent, $tax_percent) {
    $tip = $meal_cost*($tip_percent/100);
    $tax = $meal_cost*($tax_percent/100);
    $total = $meal_cost+$tip+$tax;
    echo round($total);
}

$stdin = fopen("php://stdin", "r");

fscanf($stdin, "%lf\n", $meal_cost);

fscanf($stdin, "%d\n", $tip_percent);

fscanf($stdin, "%d\n", $tax_percent);

solve($meal_cost, $tip_percent, $tax_percent);

fclose($stdin);

 

아래와같이 한줄로도 가능.

echo round($meal_cost + $meal_cost * $tip_percent / 100 + $meal_cost * $tax_percent /100);