You've heard somewhere that a word is more powerful than an action. You decided to put this statement at a test by assigning a power value to each action and each word. To begin somewhere, you defined a power of a word as the sum of powers of its characters, where power of a character is equal to its 1-based index in the plaintext alphabet.
Given a word, calculate its power.
Example
For word = "hello", the output should be
solution(word) = 52.
Letters 'h', 'e', 'l' and 'o' have powers 8, 5, 12 and 15, respectively. Thus, the total power of the word is 8 + 5 + 12 + 12 + 15 = 52.
Input/Output
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[execution time limit] 4 seconds (py3)
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[input] string word
A string consisting of lowercase English letters.
Guaranteed constraints:
1 ≤ word.length ≤ 25. -
[output] integer
Power of the given
word.
def solution(word):
num = {w: ord(w) - 96 for w in word}
return sum([num[ch] for ch in word])