제출 #635055

#	제출 시각	아이디	문제	언어	결과	실행 시간	메모리
635055		inksamurai	Telefoni (COCI17_telefoni)	C++17	80 / 80	15 ms	2004 KiB

telefoni

#include <bits/stdc++.h>
using namespace std;
#define rep(i,n) for(int i=0;i<n;i++)
#define rng(i,c,n) for(int i=c;i<n;i++)
#define per(i,n) for(int i=n-1;i>=0;i--)
#define fi first
#define se second
#define pb push_back
#define sz(a) (int)a.size()
#define vec(...) vector<__VA_ARGS__>
#define _3PGDklf ios::sync_with_stdio(0),cin.tie(0)
typedef long long ll;
using pii=pair<int,int>;
using vi=vector<int>;
void print(){cout<<'\n';}
template<class h,class...t>
void print(const h&v,const t&...u){cout<<v<<' ',print(u...);}
// e

signed main(){
_3PGDklf;
	int n,d;
	cin>>n>>d;
	vi a(n);
	rep(i,n){
		cin>>a[i];
	}
	int ans=0;
	for(int i=0;i<n-1;i++){
		int j=i+1;
		int _lst=-1;
		while(j<n and j-i<=d){
			if(a[j]==1){
				_lst=j;
			}
			j+=1;
		}
		if(_lst==-1){
			i=i+d-1;
			ans+=1;
		}else{
			i=_lst-1;
		}
	}
	print(ans);
}

• Subtask 1: 80 / 80