제출 #32885

#제출 시각아이디문제언어결과실행 시간메모리
32885Dat160601Telefoni (COCI17_telefoni)C++14
80 / 80
23 ms4520 KiB
#include <bits/stdc++.h>
using namespace std;
long long n,a[300007],ans=0,d,coun=0;
int main(){
    ios_base::sync_with_stdio(0);
    cin>>n>>d;
    for(int i=1;i<=n;i++) cin>>a[i];
    for(int i=1;i<=n;i++){
        if(a[i]==1) coun=0;
        else coun++;
        if(coun==d){
            coun=0;
            ans++;
        }
    }
    cout<<ans;
}

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