题解 | #句子逆序#

#include <iostream>
#include <string>
#include <sstream>
#include <vector>

// 函数用于逆序单词
std::string reverseWords(const std::string& sentence) {
    std::istringstream iss(sentence);
    std::vector<std::string> words;
    std::string word;

    // 将句子分割成单词并存入vector
    while (iss >> word) {
        words.push_back(word);
    }

    // 逆序单词并重新组合成句子
    std::string reversed_sentence;
    for (auto it = words.rbegin(); it != words.rend(); ++it) {
        reversed_sentence += *it;
        if (it + 1 != words.rend()) {
            reversed_sentence += " ";
        }
    }
    return reversed_sentence;
}

int main() {
    std::string line;
    // 读取多行输入
    while (getline(std::cin, line)) {
        // 输出逆序后的句子
        std::cout << reverseWords(line) << std::endl;
    }
    return 0;
}