#include <bits/stdc++.h>
using namespace std;
typedef long long LL;
typedef long double LD;
typedef unsigned long long ULL;
typedef vector<int> VI;
typedef set<int> SI;
typedef pair<int, int> PII;
typedef pair<LL, LL> PLL;
typedef vector<PII> VPII;
typedef vector<PLL> VPLL;
const int INF = 1000000001;
const LD EPS = 1e-9;
//const int MOD = 1000000007;
const LL LLINF = 1000000000000000001;
//813437586
#define FOR(i, b, e) for (int i = b; i <= e; i++)
#define FORD(i, b, e) for (int i = b; i >= e; i--)
#define ALL(c) (c).begin(), (c).end()
#define SIZE(x) ((int)(x).size())
#define VAR(v, n) auto v = (n)
#define FOREACH(i, c) for (VAR(i, (c).begin()); i != (c).end(); ++i)
#define DPRINT(x) cout << #x << ": " << x << endl
#define BOOST ios_base::sync_with_stdio(false); cin.tie(0)
#define MP make_pair
#define PB push_back
#define ST first
#define ND second
#define GGL(x) "Case #" << x << ": "
/*************************** END OF TEMPLATE ***************************/
const int maxn = 200042;
set<char> vov = {'a', 'e', 'i', 'o', 'u', 'y'};
int a[maxn];
int b[maxn];
int main()
{
	BOOST;
	string s;
	cin >> s;
	FORD(i, SIZE(s) - 1, 0)
	{
		if(vov.find(s[i]) != vov.end())
		{
			a[i] = 0;
			b[i] = b[i + 1] + 1;
		}
		else
		{
			a[i] = a[i + 1] + 1;
			b[i] = 0;
		}
	}
	int last = -1;
	LL ans = 0;
	FORD(i, SIZE(s) - 1, 0)
	{
		if(a[i] >= 3 || b[i] >= 3)
			last = i;
		if(last != -1)
			ans += SIZE(s) - last - 2;
	}
	cout << ans << '\n';
}
        | 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 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 | #include <bits/stdc++.h> using namespace std; typedef long long LL; typedef long double LD; typedef unsigned long long ULL; typedef vector<int> VI; typedef set<int> SI; typedef pair<int, int> PII; typedef pair<LL, LL> PLL; typedef vector<PII> VPII; typedef vector<PLL> VPLL; const int INF = 1000000001; const LD EPS = 1e-9; //const int MOD = 1000000007; const LL LLINF = 1000000000000000001; //813437586 #define FOR(i, b, e) for (int i = b; i <= e; i++) #define FORD(i, b, e) for (int i = b; i >= e; i--) #define ALL(c) (c).begin(), (c).end() #define SIZE(x) ((int)(x).size()) #define VAR(v, n) auto v = (n) #define FOREACH(i, c) for (VAR(i, (c).begin()); i != (c).end(); ++i) #define DPRINT(x) cout << #x << ": " << x << endl #define BOOST ios_base::sync_with_stdio(false); cin.tie(0) #define MP make_pair #define PB push_back #define ST first #define ND second #define GGL(x) "Case #" << x << ": " /*************************** END OF TEMPLATE ***************************/ const int maxn = 200042; set<char> vov = {'a', 'e', 'i', 'o', 'u', 'y'}; int a[maxn]; int b[maxn]; int main() { BOOST; string s; cin >> s; FORD(i, SIZE(s) - 1, 0) { if(vov.find(s[i]) != vov.end()) { a[i] = 0; b[i] = b[i + 1] + 1; } else { a[i] = a[i + 1] + 1; b[i] = 0; } } int last = -1; LL ans = 0; FORD(i, SIZE(s) - 1, 0) { if(a[i] >= 3 || b[i] >= 3) last = i; if(last != -1) ans += SIZE(s) - last - 2; } cout << ans << '\n'; } | 
 
            
         English
                    English