Sanalista

#include <iostream>
int main()
{
	int count = 0;
	int wordcount;
	std::cin >> wordcount;
	for (; wordcount > 0; wordcount--)
	{
		std::string temp;
		std::cin >> temp;
		int length = temp.size();
		char *checked = new char[length];
		for (int i = 0; i < length; i++)
		{
			bool even = true;
			char c = temp[i];
			for (int j = i; j >= 0; j--)
				if (*(checked + j) == c) goto end;
			checked[i] = c;
			for (int j = i; j < length; j++)
				if (temp[j] == c) even = !even;
			end:
			if (!even) goto stop;
		}
		count++;
		stop: continue;
	}
	std::cout << count;
	return 0;
}

Test 1

Verdict: ACCEPTED

Test 2

Verdict: ACCEPTED

Test 3

Verdict: ACCEPTED