1
 2
 3
 4
 5
 6
 7
 8
 9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
#include <cstdio>
#include <vector>

bool isVowel(const char letter) 
{
	return letter == 'a' || letter == 'e' || letter == 'i' || letter == 'o' || letter == 'u' || letter == 'y';
}

int main()
{
	char letter = getchar();
	bool isLastVowel = isVowel(letter);
	int noChangeCnt = 1;
	int cnt = 1;
	std::vector<int> difficultSequencePositions;

	letter = getchar();
	while (letter >= 'a' && letter <= 'z') {
		if (isLastVowel == isVowel(letter)) {
			if (noChangeCnt == 2) {
				difficultSequencePositions.push_back(cnt - 2);
			}
			else {
				noChangeCnt++;
			}
		}
		else {
			isLastVowel = !isLastVowel;
			noChangeCnt = 1;
		}	
		cnt++;

		letter = getchar();
	}

	int prev = -1;
	long long int result = 0;
	for (auto it = difficultSequencePositions.begin(); it != difficultSequencePositions.end(); ++it) {
		result += (long long int)(*it - prev) * (cnt - (*it + 2));
		prev = *it;
	}
	printf("%lld", result);

	return 0;
}