858C - Did you mean - CodeForces Solution

#include <bits/stdc++.h>
int main()
{
    std::string s, ss = "aeiou";
    std::cin >> s;
    for (int i = 0; i < s.size(); i++)
        if ((s[i] != s[i + 1] || s[i + 1] != s[i + 2]) && ss.find(s[i]) == -1 && ss.find(s[i + 1]) == -1 && ss.find(s[i + 2]) == -1 && s[i] != '\0' && s[i + 1] != '\0')
            std::cout << s[i] << s[i + 1] << " ", i++;
        else if (s[i] != '\0')
            std::cout << s[i];
}