Submission #884396

#	Time	Username	Problem	Language	Result	Execution time	Memory
884396		Ariadna	Telefoni (COCI17_telefoni)	C++14	80 / 80	34 ms	2140 KiB

telefoni

#include <bits/stdc++.h>

using namespace std;

int main()
{
    int n, d;
    cin >> n >> d;
    vector < int > a(n);
    for (int i = 0; i < n; ++i) {
        cin >> a[i];
    }
    
    ++d;
    int suma = 0;
    for (int i = 0; i < d; ++i) {
        suma += a[i];
    }
    int ans = 0;
    if (suma < 2 && a[0]) {
        a[d - 1] = 1;
        ++ans;
        ++suma;
    }
    for (int i = d; i < n; ++i) {
        suma += a[i] - a[i - d];
        if (suma < 2 && a[i - d + 1]) {
            a[i] = 1;
            ++suma;
            ++ans;
        }
    }
    cout << ans << '\n';
    
    return 0;
}

• Subtask 1: 80 / 80