LeetCode 1880: Check if Word Equals Summation of Two Words Solution

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1880. Check if Word Equals Summation of Two Words

Easy

String

Problem Explanation

Explanation:

We need to convert the given lowercase English letters into their corresponding numerical values.
Then, calculate the numerical values of firstWord, secondWord, and targetWord.
Finally, check if the sum of the numerical values of firstWord and secondWord equals the numerical value of targetWord.

Solution Code

class Solution {
    public boolean isSumEqual(String firstWord, String secondWord, String targetWord) {
        int value1 = getValue(firstWord);
        int value2 = getValue(secondWord);
        int targetValue = getValue(targetWord);
        
        return value1 + value2 == targetValue;
    }
    
    private int getValue(String word) {
        int value = 0;
        for (char c : word.toCharArray()) {
            value = value * 10 + (c - 'a');
        }
        return value;
    }
}

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