#include <cstdio>
#include <iostream>
#include <set>
#include <string>
using namespace std;
using LL = long long int;
const int MAX_N = 200007;
set<char> vowels = {'a', 'e', 'i', 'o', 'u', 'y'};
int input[MAX_N];
int main() {
string word;
cin >> word;
LL n = word.length();
int counter = 0;
for (int i = 0; i < word.length(); ++i) {
char letter = word[i];
if (vowels.find(letter) != vowels.end()){
input[counter++] = 1;
} else {
input[counter++] = 2;
}
}
LL beg = 0, result = 0;
for (long long int i = 2; i < n; ++i) {
if (input[i] == input[i - 1] && input[i] == input[i - 2]) {
result += ((i - beg) * (i - beg + 1LL)) / 2LL;
--result;
beg = i - 1;
}
}
result += ((n - beg) * (n - beg + 1LL)) / 2LL;
printf("%lld\n", ((n * (n + 1LL)) / 2LL) - 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 35 36 37 38 39 | #include <cstdio> #include <iostream> #include <set> #include <string> using namespace std; using LL = long long int; const int MAX_N = 200007; set<char> vowels = {'a', 'e', 'i', 'o', 'u', 'y'}; int input[MAX_N]; int main() { string word; cin >> word; LL n = word.length(); int counter = 0; for (int i = 0; i < word.length(); ++i) { char letter = word[i]; if (vowels.find(letter) != vowels.end()){ input[counter++] = 1; } else { input[counter++] = 2; } } LL beg = 0, result = 0; for (long long int i = 2; i < n; ++i) { if (input[i] == input[i - 1] && input[i] == input[i - 2]) { result += ((i - beg) * (i - beg + 1LL)) / 2LL; --result; beg = i - 1; } } result += ((n - beg) * (n - beg + 1LL)) / 2LL; printf("%lld\n", ((n * (n + 1LL)) / 2LL) - result); return 0; } |
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