LeetCode 2278: Percentage of Letter in String Solution

Master LeetCode problem 2278 (Percentage of Letter in String), a easy challenge, with our optimized solutions in Java, C++, and Python. Explore detailed explanations, test your code in our interactive editor, and prepare for coding interviews.

2278. Percentage of Letter in String

Easy

String

Problem Explanation

Explanation:

To solve this problem, we need to iterate through the given string s and count the number of occurrences of the character letter. Then we calculate the percentage of occurrences of letter in s and round it down to the nearest whole percentage.

Initialize a variable count to store the number of occurrences of letter.
Iterate through each character in the string s:
- If the character is equal to letter, increment the count.
Calculate the percentage of occurrences of letter in s by dividing count by the length of s and multiplying by 100.
Return the rounded down value of the percentage.

Solution Code

class Solution {
    public int percentageOfLetterInString(String s, char letter) {
        int count = 0;
        for (char c : s.toCharArray()) {
            if (c == letter) {
                count++;
            }
        }
        return count * 100 / s.length();
    }
}

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