2023-11-10 16:49:28 +0000 UTC

class Solution {
public:
    string mergeAlternately(string word1, string word2) {
        int l1 = word1.size(), l2 = word2.size();
        string result = "";
        int i = 0, j = 0;
        while (i < l1 || j < l2) {
            if (i < l1) {
                result.push_back(word1[i++]);
            }
            if (j < l2) {
                result.push_back(word2[j++]);
            }
        }
        return result;
    }
};