C++ 單詞排序：輸入句子，按字典序輸出單詞，用 stringstream 分割 + vector 排序

輸入：`Hello, Welecome to Henan Univercity` → 輸出：`Hello Henan to Univercity Welecome`（按 ASCII 碼序，大寫在前）。

完整代碼

#include 
#include 
#include 
#include 
#include 

int main() {
    std::string line;
    std::getline(std::cin, line);
    
    std::vector words;
    std::stringstream ss(line);
    std::string word;
    while (ss >> word) {
        // 可選：去除標點
        if (!word.empty() && ispunct(word.back())) word.pop_back();
        words.push_back(word);
    }
    
    std::sort(words.begin(), words.end());
    
    for (size_t i = 0; i < words.size(); ++i) {
        if (i) std::cout << ' ';
        std::cout << words[i];
    }
    std::cout << '\n';
    return 0;
}

輸出驗證

Hello Henan to Univercity Welecome