Submission #1310484

#	Time	Username	Problem	Language	Result	Execution time	Memory
1310484		dgarcia09	Telefoni (COCI17_telefoni)	C++20	8 / 80	10 ms	2768 KiB

telefoni

#include <bits/stdc++.h>
#pragma GCC optimize ("O2")
#define int long long
#define endl '\n' 
#define fr first
#define sc second
#define vc vector<int>
using namespace std;

int32_t main() {
    ios_base::sync_with_stdio(0);
    cin.tie(0); 	cout.tie(0);
    cout.setf(ios::fixed);
    cout.precision(0);

    int n, d;   
    cin >> n >> d;
    vc num(n+1);
    int pos = 1;
    bool ok = true;

    for(int i = 1; i <= n; i++){ 
        cin >> num[i];
        if(num[i] == 1 && num[i-1] != 0){
            pos++;
        }else{
            ok = false;
        }
    }

    int cont = 0;

    for(int i = pos; i <= n; i += d){
        if(num[i] == 0){
            cont++;
        }
    }

    cout << cont << endl;


    return 0;
}

• Subtask 1: 8 / 80