#include <iostream>
#include <vector>
#include <cassert>
bool czySamogloska(char chr)
{
static const char *samogloski = "aeiouy";
for (const char *ptr = samogloski; *ptr; ++ptr) {
if (chr == *ptr)
return true;
}
return false;
}
long long licz(const std::string &str)
{
std::vector<int> trojki;
for (int i = 0; i < (int)str.size() - 2; ++i) {
const bool czy0 = czySamogloska(str[i]);
const bool czy1 = czySamogloska(str[i + 1]);
const bool czy2 = czySamogloska(str[i + 2]);
if ((czy0 && czy1 && czy2) || (!czy0 && !czy1 && !czy2))
trojki.push_back(i);
}
long long wynik = 0;
for (std::vector<int>::iterator it = trojki.begin(); it != trojki.end(); ++it) {
const int firstPossibleStartPos = it == trojki.begin() ? 0 : *(it - 1) + 1;
const int lastPossibleStartPos = *it;
assert(firstPossibleStartPos <= lastPossibleStartPos);
const int firstPossibleEndPos = *it + 3;
const int lastPossibleEndPos = str.size();
assert(firstPossibleEndPos <= lastPossibleEndPos);
wynik += (lastPossibleStartPos - firstPossibleStartPos + 1) * (lastPossibleEndPos - firstPossibleEndPos + 1);
}
return wynik;
}
int main()
{
std::string str;
std::cin >> str;
std::cout << licz(str) << std::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 41 42 43 44 45 46 47 48 | #include <iostream> #include <vector> #include <cassert> bool czySamogloska(char chr) { static const char *samogloski = "aeiouy"; for (const char *ptr = samogloski; *ptr; ++ptr) { if (chr == *ptr) return true; } return false; } long long licz(const std::string &str) { std::vector<int> trojki; for (int i = 0; i < (int)str.size() - 2; ++i) { const bool czy0 = czySamogloska(str[i]); const bool czy1 = czySamogloska(str[i + 1]); const bool czy2 = czySamogloska(str[i + 2]); if ((czy0 && czy1 && czy2) || (!czy0 && !czy1 && !czy2)) trojki.push_back(i); } long long wynik = 0; for (std::vector<int>::iterator it = trojki.begin(); it != trojki.end(); ++it) { const int firstPossibleStartPos = it == trojki.begin() ? 0 : *(it - 1) + 1; const int lastPossibleStartPos = *it; assert(firstPossibleStartPos <= lastPossibleStartPos); const int firstPossibleEndPos = *it + 3; const int lastPossibleEndPos = str.size(); assert(firstPossibleEndPos <= lastPossibleEndPos); wynik += (lastPossibleStartPos - firstPossibleStartPos + 1) * (lastPossibleEndPos - firstPossibleEndPos + 1); } return wynik; } int main() { std::string str; std::cin >> str; std::cout << licz(str) << std::endl; return 0; } |
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