我如何编写一个函数来检查一个单词在向量中是否重复了两次或更多，并输出它重复的次数？在C++中

#include <iostream>
#include <vector>
#include <unordered_map>

int checkWordDuplicates(const std::vector<std::string>& words, const std::string& targetWord) {
    std::unordered_map<std::string, int> wordCount;

    // 统计每个单词出现的次数
    for (const std::string& word : words) {
        wordCount[word]++;
    }

    // 检查目标单词是否重复，并输出重复次数
    if (wordCount.find(targetWord) != wordCount.end()) {
        int count = wordCount[targetWord];
        if (count >= 2) {
            return count;
        }
    }

    return 0; // 目标单词未重复
}

int main() {
    std::vector<std::string> words = {"apple", "banana", "apple", "orange", "apple"};
    std::string targetWord = "apple";

    int duplicateCount = checkWordDuplicates(words, targetWord);
    std::cout << "The word \"" << targetWord << "\" is repeated " << duplicateCount << " times." << std::endl;

    return 0;
}