HackerRank.com Practice > C++ > Introduction > For Loop

#include <iostream>
#include <string>
using namespace std;

int main() {
    string ss[] = {"", "one", "two", "three", "four", "five",\
                       "six", "seven", "eight", "nine"};
    string eo[] = {"even", "odd"};

    int n, N;
    cin >> n >> N;

    for(int i=n; i<=N; ++i) {
        if(i < 10) {
            cout << ss[i] << '\n';
        }
        else {
            cout << eo[(i % 2)] << '\n';
        }
    }

    return 0;
}