CPP

c++ copy with transform

#include <algorithm>
#include <cctype>
#include <iostream>
#include <string>
#include <vector>
 
int main()
{
    std::string s("hello");
    std::transform(s.begin(), s.end(), s.begin(),
                   [](unsigned char c) -> unsigned char { return std::toupper(c); });
 
    std::vector<std::size_t> ordinals;
    std::transform(s.begin(), s.end(), std::back_inserter(ordinals),
                   [](unsigned char c) -> std::size_t { return c; });
 
    std::cout << s << ':';
    for (auto ord : ordinals) {
       std::cout << ' ' << ord;
    }
 
    std::transform(ordinals.cbegin(), ordinals.cend(), ordinals.cbegin(),
                   ordinals.begin(), std::plus<>{});
 
    std::cout << '
';
    for (auto ord : ordinals) {
       std::cout << ord << ' ';
    }
    std::cout << '
';
}