CPP

vector to string c++

std::vector<char> input({ 'a', 'b', 'c' });
std::string s(input.begin(), input.end());

string vector to string c++

#include <vector>

std::string array_to_string(const std::vector<std::string>& string_array)
{
    std::string ret_string;
    for (const std::string& s : string_array) ret_string.append(s);
    return ret_string;
}