Sanalista

#include <bits/stdc++.h>
using namespace std;

int main()
{
    int n;
    cin >> n;
    int result = 0;

    for(int la = 0; la < n; la++) //jokaista riviä kohden
    {
        string sana;
        cin >> sana;

        bool letterParity[26];

        for(int lb = 0; lb < 26; lb++)
        {
            letterParity[lb] = true;
        }

        for(unsigned int lb = 0; lb < sana.length(); lb++) //jokaiselle kirjaimelle
        {
            letterParity[sana[lb]-'a'] = !letterParity[sana[lb]-'a'];
        }

        bool paritySoFar = true;

        for(int lb = 0; lb < 26; lb++)
        {
            if(letterParity[lb] == false)
            {
                paritySoFar = false;
                break;
            }
        }

        if(paritySoFar)
        {
            result++;
        }
    }

    cout << result;
}

Test 1

Verdict: ACCEPTED

Test 2

Verdict: ACCEPTED

Test 3

Verdict: ACCEPTED