## DEV Community 👩‍💻👨‍💻 is a community of 930,237 amazing developers

We're a place where coders share, stay up-to-date and grow their careers. # Day 2: Operators - 30 Days of Code HackerRank

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. Operators hackerrank solution in c++(cpp)

``````#include <bits/stdc++.h>

using namespace std;

// Complete the solve function below.

void solve(double meal_cost, int tip_percent, int tax_percent) {

int total_cost;
total_cost =  meal_cost + meal_cost * tip_percent/100 + meal_cost * tax_percent/100;
cout << total_cost <<endl;
}

int main()
{
double meal_cost;
cin >> meal_cost;
cin.ignore(numeric_limits<streamsize>::max(), '\n');

int tip_percent;
cin >> tip_percent;
cin.ignore(numeric_limits<streamsize>::max(), '\n');

int tax_percent;
cin >> tax_percent;
cin.ignore(numeric_limits<streamsize>::max(), '\n');

solve(meal_cost, tip_percent, tax_percent);

return 0;
}
``````

Operators hackerrank solution in Python

``````import math
import os
import random
import re
import sys

# Complete the solve function below.
def solve(meal_cost, tip_percent, tax_percent):

total_cost =  meal_cost + meal_cost * tip_percent/100 + meal_cost * tax_percent/100
print(round(total_cost))

if __name__ == '__main__':
meal_cost = float(input())

tip_percent = int(input())

tax_percent = int(input())

solve(meal_cost, tip_percent, tax_percent)

``````

Operators hackerrank solution in JavaScript

``````// Complete the solve function below.
function solve(meal_cost, tip_percent, tax_percent) {

let total_cost;
total_cost =  meal_cost + meal_cost * tip_percent/100 + meal_cost * tax_percent/100;
console.log(Math.round(total_cost));
}

function main() {
const meal_cost = parseFloat(readLine());

const tip_percent = parseInt(readLine(), 10);

const tax_percent = parseInt(readLine(), 10);

solve(meal_cost, tip_percent, tax_percent);
}
``````

### Problem Statement Link :

https://www.hackerrank.com/challenges/30-operators/problem

## Top comments (2) Saikartik101 • Edited on

thats a nice code but it failed in test case 3 because instead of converting value to int we should use round function it will give you nearby value of double value, using this will be better :)

# include

using namespace std;

// Complete the solve function below.

void solve(double meal_cost, double tip_percent, double tax_percent) {

``````double total_cost;
total_cost =  meal_cost + meal_cost * tip_percent/100 + meal_cost * tax_percent/100;
cout.precision(10);
cout <<round(total_cost) <<endl;
``````

}

int main()
{
double meal_cost;
cin >> meal_cost;
cin.ignore(numeric_limits::max(), '\n');

``````double tip_percent;
cin >> tip_percent;
cin.ignore(numeric_limits<streamsize>::max(), '\n');

double tax_percent;
cin >> tax_percent;
cin.ignore(numeric_limits<streamsize>::max(), '\n');

solve(meal_cost, tip_percent, tax_percent);

return 0;
``````

}