LeetCode 1754: Largest Merge Of Two Strings Solution

Master LeetCode problem 1754 (Largest Merge Of Two Strings), a medium 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.

1754. Largest Merge Of Two Strings

Medium

Two Pointers String Greedy

Problem Explanation

Explanation:

To solve this problem, we can use a greedy approach. We compare the current characters of word1 and word2, and choose the larger character to append to the merge string. If the characters are equal, we compare the following characters until we find a difference.

We iterate through the strings until one of them becomes empty, and then append the remaining characters of the non-empty string to the merge string. Solution:

Solution Code

class Solution {
    public String largestMerge(String word1, String word2) {
        StringBuilder merge = new StringBuilder();
        while (!word1.isEmpty() && !word2.isEmpty()) {
            if (word1.compareTo(word2) > 0) {
                merge.append(word1.charAt(0));
                word1 = word1.substring(1);
            } else {
                merge.append(word2.charAt(0));
                word2 = word2.substring(1);
            }
        }
        merge.append(word1).append(word2);
        return merge.toString();
    }
}

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