118A - String Task Codeforces || Codeforces 118A - String Task Solution

#include <bits/stdc++.h>

using namespace std;

int main()
{
    string word;
    getline(cin, word);
    transform(word.begin(), word.end(), word.begin(), ::tolower);  // Converting uppercase to lowercase
    for (int i = 0; i < word.length(); )
    {
        if (word[i] == 'a' || word[i] == 'e' || word[i] == 'i' || word[i] == 'o' || word[i] == 'u' || word[i] == 'y')
        {
            word.erase(word.begin() + i);  // Removing specific character
        }
        else
        {
            i++;
        }
    }
    for (char i : word)
    {
        cout << "." << i;
    }

    return 0;
}