Submission #721394

#	Time	Username	Problem	Language	Result	Execution time	Memory
721394		vjudge1	Telefoni (COCI17_telefoni)	C++17	16 / 80	18 ms	2004 KiB

telefoni

#include <bits/stdc++.h>
#define F first
#define S second
#define ll long long
#define EB emplace_back

using namespace std;

const int SIZE = 1e5 + 1;
const int MOD = 1e9 + 7;


int main() {
  ios_base::sync_with_stdio(0); cin.tie(nullptr);

    int n, d; cin >> n >> d;
    vector<int> M(n + 1);
    int cnt = 0;

    for (int i = 1; i <= n; i ++) {
         cin >> M[i];
  }

    for (int i = 1; i <= n; i += d) {
         if (M[i] == 0) {
          cnt ++;
    }
  }

  cout << cnt << "\n";

  return 0;
}

• Subtask 1: 16 / 80