A howl on the wind…

//tinodidriksen.com/uploads/code/cpp/dynamic-string-box.cpp

#include <iostream>
#include <algorithm>
#include <string>
#include <vector>

int main() {
    std::vector<std::string> strs;
    strs.push_back("Hello World!");
    strs.push_back("This is a text line.");
    strs.push_back("Shorter line.");

    size_t maxl = 0;
    for (size_t i = 0 ; i<strs.size() ; ++i) {
        maxl = std::max(maxl, strs[i].length());
    }

    std::cout << std::string(maxl+4, '*') << std::endl;
    for (size_t i = 0 ; i<strs.size() ; ++i) {
        std::cout << "* "
            << strs[i]
            << std::string(maxl-strs[i].length()+1, ' ')
            << "*" << std::endl;
    }
    std::cout << std::string(maxl+4, '*') << std::endl;
}