Submission #4266414

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Source Code Expand

#include<bits/stdc++.h>
using namespace std;
int main(){
    int n;
    string s;
    cin>>n>>s;
    int sum=0;
    for(int i=0;i<n;i++){
        if(i>=n-4){
            break;
        }
        if(s[i+3]=='.'){
            i+=3;
        }
        else{
            if(s[i+2]=='.'){
                i+=2;
            }
            else{
                if(s[i+1]=='.'){
                    i+=1;
                }
                else{
                    i+=3;
                    sum++;
                }
            }
        }
    }
    cout<<sum<<endl;
}

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