ICPC 2017 Latin American Regional B（思维）
90nwyn
2020-10-09 16:42:10
[题目连接](https://vjudge.net/problem/Gym-101889B)
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```cpp
#include <bits/stdc++.h>
using namespace std;
const int M=1e5+5;
char s[M];
vector<int> vt;
int check(char s)
{
if(s=='a'||s=='i'||s=='o'||s=='u'||s=='e')return 1;
return 0;
}
int main()
{
scanf("%s",s+1);
int len=strlen(s+1);
for(int i=1;i<=len;i++)if(check(s[i]))vt.push_back(i);
int flag=check(s[1]);
if(vt.empty())printf("1\n");
else if(!flag)printf("0\n");
else if(vt.size()==1)printf("%d\n",len);
else
{
int t=(vt.size()+1)/2;
printf("%d\n",vt[t]-vt[t-1]);
}
return 0;
}
```