prog.cpp
#include <cctype>
#include <iostream>
#include <string>
using namespace std;
/**
Makes an lowercase version of a string.
@param str a string
@return a string with the characters in str converted to lowercase
*/
string lowercase(string str)
{
string result = str; // Make a copy of str
for (int i = 0; i < result.length(); i++)
{
result[i] = tolower(result[i]); // Convert each character to lowercase
}
return result;
}
string firstDoubledVowel(string s)
{
}