#include <iostream> #include <vector> using namespace std; int main() { ios_base::sync_with_stdio(0); string s; cin >> s; int n = s.size(); vector<bool> x(n, false); for (int i = 0; i < n; i++) { x[i] = s[i] == 'a' || s[i] == 'e' || s[i] == 'i' || s[i] == 'o' || s[i] == 'u' || s[i] == 'y'; } vector<int> a(n); a[n-1] = a[n-2] = -1; for (int i = n-3; i >= 0; i--) { if (x[i] == x[i+1] && x[i] == x[i+2]) { a[i] = i+2; } else { a[i] = a[i+1]; } } long long res = 0; for (int i = 0; i < n; i++) { if (a[i] != -1) { res += n - a[i]; } } cout << res << endl; 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 35 36 37 38 39 40 | #include <iostream> #include <vector> using namespace std; int main() { ios_base::sync_with_stdio(0); string s; cin >> s; int n = s.size(); vector<bool> x(n, false); for (int i = 0; i < n; i++) { x[i] = s[i] == 'a' || s[i] == 'e' || s[i] == 'i' || s[i] == 'o' || s[i] == 'u' || s[i] == 'y'; } vector<int> a(n); a[n-1] = a[n-2] = -1; for (int i = n-3; i >= 0; i--) { if (x[i] == x[i+1] && x[i] == x[i+2]) { a[i] = i+2; } else { a[i] = a[i+1]; } } long long res = 0; for (int i = 0; i < n; i++) { if (a[i] != -1) { res += n - a[i]; } } cout << res << endl; return 0; } |