#include <iostream>
#include <vector>
#include <algorithm>
#define lint long long
int main() {
std::vector<char> vowel{'a', 'e', 'i', 'o', 'u', 'y'};
const int max_n = 200 * 1000;
int n, A[max_n];
std::string txt;
std::ios_base::sync_with_stdio(false);
std::cin >> txt;
n = txt.size();
A[n - 1] = -1;
A[n - 2] = -1;
for(int i = n - 3; i >= 0; i--) {
int s = 0;
for(int j = i; j < i + 3; j++)
if(find(vowel.begin(), vowel.end(), txt[j]) != vowel.end())
s++;
if(s == 3 || s == 0)
A[i] = i + 2;
else
A[i] = A[i + 1];
}
lint result = 0;
for(int i = 0; i < n; i++)
if(A[i] != -1)
result += n - A[i];
std::cout << result;
return 0;
}
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 | #include <iostream> #include <vector> #include <algorithm> #define lint long long int main() { std::vector<char> vowel{'a', 'e', 'i', 'o', 'u', 'y'}; const int max_n = 200 * 1000; int n, A[max_n]; std::string txt; std::ios_base::sync_with_stdio(false); std::cin >> txt; n = txt.size(); A[n - 1] = -1; A[n - 2] = -1; for(int i = n - 3; i >= 0; i--) { int s = 0; for(int j = i; j < i + 3; j++) if(find(vowel.begin(), vowel.end(), txt[j]) != vowel.end()) s++; if(s == 3 || s == 0) A[i] = i + 2; else A[i] = A[i + 1]; } lint result = 0; for(int i = 0; i < n; i++) if(A[i] != -1) result += n - A[i]; std::cout << result; return 0; } |
English