Write a c++program that reads in some text with a character at the start of a word or line to end input The program must build up a hidden message from the first and last words of each sentence Input

#include #include #include

using namespace std;

int main() { string input; vector sentences; vector words;

// Read in input and split into sentences
cout << "Enter text with * at start of word/line to end input: " << endl;
while (getline(cin, input)) {
    if (input[0] == '*') {
        break;
    }
    sentences.push_back(input);
}

// Extract first and last words from each sentence
for (string sentence : sentences) {
    int start = 0;
    int end = sentence.find(" ");
    string first_word = sentence.substr(start, end - start);

    start = sentence.find_last_of(" ") + 1;
    end = sentence.find_first_of(".!?") + 1;
    string last_word = sentence.substr(start, end - start);

    words.push_back(first_word);
    words.push_back(last_word);
}

// Build up hidden message
string message = "";
for (string word : words) {
    if (word != "") {
        if (message != "") {
            message += " ";
        }
        message += word;
    }
}

// Output hidden message
cout << "Hidden message: " << message << endl;

return 0;