注意 $\texttt{VVK}$ 和 $\texttt{VKK}$ 的情况
```cpp
#include <bits/stdc++.h>
#define int long long
using namespace std;
int n,ans;
char a[101];
signed main ()
{
ios::sync_with_stdio (false);
cin>>n;
for (int i=1;i<=n;i++) cin>>a[i];
for (int i=1;i<=n;i++)
if ((a[i]=='V'&&a[i+1]=='K'))
i++,ans++;
for (int i=1;i<=n;i++)
if (a[i]=='V'&&a[i+1]=='V' && a[i + 2] != 'K') {ans++;break;}
else if (a[i]=='K'&&a[i+1]=='K' && a[i - 1] != 'V') {ans++;break;}
cout<<ans<<endl;
return 0;
}
by zyh_helen @ 2023-08-21 13:06:53