# 30 Days of Code - Day 2: Operators

Coding challenges are a great resource for learning coding techniques and improve analytical thinking, this is a collection of challenges from different platforms.

## Objective

In this challenge, you’ll work with arithmetic operators. Check out the Tutorial tab for learning materials and an instructional video!

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!

## Input Format

There are 3 lines of numeric input:

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

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

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

## Output Format

Print `The total meal cost is totalCost dollars.`, where `totalCost` is the rounded integer result of the entire bill (`mealCost` with added tax and tip).

## Sample 00

input00.txt
``````12.00
20
8``````
output00.txt
``15``

### Explanation

Given:

`mealCost = 12`, `tipPercent = 20`, `taxPercent = 8`

Calculations:

`tip = 12 * (20 / 100) = 2.4`

`tax = 12 * (8 / 100) = 0.96`

`totalCost = mealCost + tip + tax = 12 + 2.4 + 0.96 = 15.36`

`roud(totalCost) = 15`

We round `totalCost` to the nearest dollar (integer) and then print our result:

``````The total meal cost is 15 dollars.
``````

## Sample 01

input01.txt
``````15.50
15
10``````
output01.txt
``19``

## Solution

`main.go`
``````package main

import (
"fmt"
)

func main() {
var (
mealCost float64

tipPercent, taxPercent int

total float64
)

fmt.Scan(&mealCost)
total += mealCost

fmt.Scan(&tipPercent)
total += float64(tipPercent) / 100 * mealCost

fmt.Scan(&taxPercent)
total += float64(taxPercent) / 100 * mealCost

fmt.Println(int64(total + 0.5))
}
``````