#include <bits/stdc++.h>
using namespace std;
bool s[200013],trud[200013];
int last[200013];
string t;
int n;
long long res=0;
int main()
{
ios_base::sync_with_stdio(false);
cin.tie();
cout.tie();
cin >> t;
n=t.size();
for(int i=0; i<n; i++){
if(t[i]=='a' || t[i]=='o' || t[i]=='e' || t[i]=='i' || t[i]=='u' || t[i]=='y')
s[i]=true;
else
s[i]=false;
}
for(int i=0; i<n-2; i++){
if(s[i]==s[i+1] && s[i+1]==s[i+2])
trud[i]=true;
else
trud[i]=false;
}
last[0]=-1;
for(int i=1; i<n; i++){
if(trud[i-1])
last[i]=i-1;
else
last[i]=last[i-1];
}
for(int i=0; i<n; i++){
if(trud[i]){
res=res+(long long)((long long)(i-last[i])*(long long)(n-i-2));
}
}
cout << res;
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 | #include <bits/stdc++.h> using namespace std; bool s[200013],trud[200013]; int last[200013]; string t; int n; long long res=0; int main() { ios_base::sync_with_stdio(false); cin.tie(); cout.tie(); cin >> t; n=t.size(); for(int i=0; i<n; i++){ if(t[i]=='a' || t[i]=='o' || t[i]=='e' || t[i]=='i' || t[i]=='u' || t[i]=='y') s[i]=true; else s[i]=false; } for(int i=0; i<n-2; i++){ if(s[i]==s[i+1] && s[i+1]==s[i+2]) trud[i]=true; else trud[i]=false; } last[0]=-1; for(int i=1; i<n; i++){ if(trud[i-1]) last[i]=i-1; else last[i]=last[i-1]; } for(int i=0; i<n; i++){ if(trud[i]){ res=res+(long long)((long long)(i-last[i])*(long long)(n-i-2)); } } cout << res; return 0; } |
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