How to convert this code to use string

Question

char * recursivecombo(char *str, int choices, int level)
{
    int len = strlen(str);

    level++;
    if( level == choices)
    {   
            for (int i = 0; i <         


        

Answer 1

std::string recursivecombo(const std::string& str, int choices, int level)
{
    level++;
    for (int i = 0; i < str.length() -2; ++i)
    {
        cout<

This is just a mock-up using a string. Some issues with your function

1)Where is your return value

2)If you intend to use string use cout, rather than printf, if it is C++

3)Use prefix ++.