求29、37、49、50测资

#include<iostream>
using namespace std;
bool bo;
int sum;
int main()
{
    int n;
    cin>>n;
    string str;
    cin>>str;
    for(int i=1;i<n;i++)
    {
        if(str[i-1]=='V' && str[i]=='K') sum++;
        if(((str[i-1]=='K' && str[i]=='K') || (str[i-1]=='V' && str[i]=='V' && (str[i+1]==str[i] || i==n-1))) && bo==0)
        {
            sum++;
            bo=1;
        }
    }
    cout<<sum;
    return 0;
}