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2278. Percentage of Letter in String

Difficulty Topics

Description

Given a string s and a character letter, return the percentage of characters in s that equal letter rounded down to the nearest whole percent.

 

Example 1:

Input: s = "foobar", letter = "o"
Output: 33
Explanation:
The percentage of characters in s that equal the letter 'o' is 2 / 6 * 100% = 33% when rounded down, so we return 33.

Example 2:

Input: s = "jjjj", letter = "k"
Output: 0
Explanation:
The percentage of characters in s that equal the letter 'k' is 0%, so we return 0.

 

Constraints:

  • 1 <= s.length <= 100
  • s consists of lowercase English letters.
  • letter is a lowercase English letter.

Solution

percentage-of-letter-in-string.py
class Solution:
    def percentageLetter(self, s: str, letter: str) -> int:
        n = len(s)
        c = s.count(letter)
        # print(n, c)
        return int(c / n * 100)