Submission #209991

#	Time	Username	Problem	Language	Result	Execution time	Memory
209991		AlainSu	Telefoni (COCI17_telefoni)	C++14	24 / 80	1100 ms	632 KiB

telefoni

#include<bits/stdc++.h>
using namespace std;
const int MAXN=3500000;
long long n,m,ans=0,tmp;
bool a[MAXN];
void input()
{
	cin>>n>>m;
	for (int i=1;i<=n;i++)
	    cin>>a[i];
}
void process()
{
	int now=1,maxr=m+1;
	while (maxr<n)
	{
	    for (int i=maxr;i>=now;i--)
	   	    if (a[i])
	   	    {
	   	    	tmp=i;
	   	    	break;
			}
		if (tmp==now)
		{
			ans++;
			now=maxr;
		}
		else
		{
			now=tmp;
		}
		maxr=now+m;
    }
}
void output()
{
	cout<<ans;
}
int main()
{
	input();
	process();
	output();
	return 0;
}

• Subtask 1: 24 / 80