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Daily Challenge #223 - Responsible Drinking

thepracticaldev profile image dev.to staff ・1 min read

Welcome to the bar!

We recommend you drink 1 glass of water per drink so you're not hungover tomorrow morning. Your fellow coders have bought you several drinks tonight in the form of strings. Return a string suggesting how many glasses of water you should drink to not be hungover.

If you would like to keep things simple, you can consider any "numbered thing" in the string to be a drink. Even "1 bear" => "1 glass of water" or "1 chainsaw and 2 pools" => "3 glasses of water".

Example Pairs
Input 0:
"1 beer"
Output 0:
"1 glass of water"

Input 1:
"1 shot, 5 beers, 2 shots, 1 glass of wine, 1 beer"
Output 1:
"10 glasses of water"

Tests
hydrate("1 beer")
hydrate("2 glasses of wine and 1 shot")
hydrate("1 shot, 5 beers, 2 shots, 1 glass of wine, 1 beer")

Good luck!


This challenge comes from taylormb on CodeWars. Thank you to CodeWars, who has licensed redistribution of this challenge under the 2-Clause BSD License!

Want to propose a challenge idea for a future post? Email yo+challenge@dev.to with your suggestions!

Discussion (18)

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vidit1999 profile image
Vidit Sarkar

Python solution

import re

def hydrate(drinks: str) -> str:
    drinkCount = sum(map(int, re.findall("\d+", drinks))) # total number of drinks
    # this will also work, drinkCount = sum([int(num) for num in drinks.split(" ") if num.isdigit()])

    return str(drinkCount) + " glass" + ("es" if drinkCount > 1 else "") + " of water"


print(hydrate("1 beer")) # output -> 1 glass of water
print(hydrate("2 glasses of wine and 1 shot")) # output -> 3 glasses of water
print(hydrate("1 shot, 5 beers, 2 shots, 1 glass of wine, 1 beer")) # output -> 10 glasses of water
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vidit1999 profile image
Vidit Sarkar

I want to suggest a challenge. What should be the subject of my email? Can I send a markdown file?

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devencourt profile image
Brian Bethencourt

Hey Vidit, I'm happy to hear you wanna suggest a challenge. You can send any suggestions to yo+challenge@dev.to. Feel free to drop the content of your challenge in the email, markdown file works too. Subject doesn't matter too much, we'll know what it is.

Take care!

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vidit1999 profile image
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alvaromontoro profile image
Alvaro Montoro • Edited

Using regular expressions in JavaScript:

const hydrate = s => {
  // get an array with all the numbers in the string, and add the values using reduce
  const number = s.match(/\d/g)
                  .reduce((acc, val) => acc + parseInt(val), 0);
  return `${number} glass${number != 1 ? 'es' : ''} of water`;
}

We get the following results:

hydrate("1 beer")
// 1 glass of water 
hydrate("2 glasses of wine and 1 shot")
// 3 glasses of water 
hydrate("1 shot, 5 beers, 2 shots, 1 glass of wine, 1 beer")
// 10 glasses of water
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fluffynuts profile image
Davyd McColl

I didn't see yours, but mine is practically identical 😮

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alvaromontoro profile image
Alvaro Montoro

Yours has some checks that make it more robust... And that I probably should add to mine 😳

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arnavmotwani profile image
Arnav Motwani

My solution in python

import re
order = input("list the drinks")


def Hydrate(order):
    glasses = 0
    drinks = re.split(", |and ",order)
    for number in drinks:
        tab = number.split(" ")
        glasses += int(tab[0])
    print(glasses)

Hydrate(order)
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jack_garrus profile image
Nadia G. • Edited

Js vanilla solution (fix below)
Js vanilla solution

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fluffynuts profile image
Davyd McColl

What if I drink "11 beers"?

(I have a feeling I'll be severely under-hydrated)

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jack_garrus profile image
Nadia G. • Edited

Oh, that's interesting. I'll upload a fix asap. Thanks for reporting!
EDIT: fixed! The problem was the split -not necessary. Also have forgot the existence of reduce! I need a vacation

fix

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nnari profile image
Tatu Pesonen

Your theme looks amazing, what is it?

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jack_garrus profile image
Nadia G.

Thank you! It's a customization I've made from Material Ocean, nothing special :)

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nnari profile image
Tatu Pesonen

Any chance you would be willing to upload it for me somewhere? :)

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jack_garrus profile image
Nadia G.

Well, I could send it to you by email but note that I had customize only the Js, Sass, Css. HTML and Ts parts. Let me know!

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rafaacioly profile image
Rafael Acioly

Python solution 🐍

import re

def drink(order: str) -> str:
    numbers = re.findall('\d+', order)
    amount = sum(int(amount) for amount in numbers)
    return f"{amount} glasses of water"
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kesprit profile image
kesprit • Edited

My swift solution :

func hydrate(_ input: String) -> String {
    let number = input.split(separator: .init(" "))
        .map { $0.filter { c in c.isNumber } }
        .compactMap { Int($0) }
        .reduce(into: 0) { $0 += $1 }
    return "\(number) glass\(number > 1 ? "es": "") of water"
}

hydrate("1 beer") // 1 glass of water
hydrate("2 glasses of wine and 1 shot") // 3 glasses of water
hydrate("1 shot, 5 beers, 2 shots, 1 glass of wine, 1 beer") // 10 glasses of water
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fluffynuts profile image
Davyd McColl
function hydrate(sentence) {
  const
    howMany = (sentence.match(/(\d+)/g) || [])
      .reduce((acc, cur) => acc + parseInt(cur), 0),
    s = howMany === 1 ? "" : "es";
    return `${howMany} glass${s} of water`;
}
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