03 - Highest Scoring Word

Don’t say so much, just coding…

Instruction

Given a string of words, you need to find the highest scoring word.

Each letter of a word scores points according to its position in the alphabet: a = 1, b = 2, c = 3 etc.

You need to return the highest scoring word as a string.

If two words score the same, return the word that appears earliest in the original string.

All letters will be lowercase and all inputs will be valid.

Ruby

Init

def high(x)
  # Code here
end

Sample Testing

describe "Basic Tests" do
  it "should pass basic tests" do
    Test.assert_equals(high('man i need a taxi up to ubud'), 'taxi')
    Test.assert_equals(high('what time are we climbing up the volcano'), 'volcano')
    Test.assert_equals(high('take me to semynak'), 'semynak')
    Test.assert_equals(high('aaa b'), 'aaa')
  end
end

Javascript

Init

function high(x){
  // Code here
}

Sample Testing

Test.describe("Example tests",_=>{
Test.assertEquals(high('man i need a taxi up to ubud'), 'taxi');
Test.assertEquals(high('what time are we climbing up the volcano'), 'volcano'); 
Test.assertEquals(high('take me to semynak'), 'semynak');  
});

Thinking

想法(1): 輸入的英文句子，可以先將每個字切開分群
想法(2): 再將每個群計算 ord 然後計算該群單詞 ord 總和

圖片來源：Unsplash Matt Ragland

Hint & Reference

• Ruby
  • Ruby - apidock Ord
  • Ruby - apidock Max_by
• JavaScript
  • JS - MDN String.prototype.charCodeAt
  • JS - MDN Array.prototype.indexOf
  • JS - MDN Math.max

Solution

Ruby

# Solution 1
def high(x)
  x.split.max_by{ |x| x.chars.map{ |c| c.ord - 96}.sum }
end

Javascript

// Solution 1
function high(x){
  let max = x.split(' ').map( 
    (s) => [...s].reduce(
      (sum, s) => sum + s.charCodeAt() - 96, 0
    )
  )
  
  return x.split(' ')[max.indexOf(Math.max(...max))];
}