#include <bits/stdc++.h>
using namespace std;
int n;
int d;
int main()
{
ios_base::sync_with_stdio(false);
cin >> n >> d;
vector<int> a(n);
for(auto &x: a) cin >> x;
int cur = 0, res = 0;
for(int i = 1; i < n; i ++){
if(a[i] == 1){
res += (i - cur - 1) / d;
cur = i;
}
}
cout << res << "\n";
}
# |
Verdict |
Execution time |
Memory |
Grader output |
1 |
Correct |
0 ms |
384 KB |
Output is correct |
2 |
Correct |
1 ms |
384 KB |
Output is correct |
3 |
Correct |
1 ms |
384 KB |
Output is correct |
4 |
Correct |
1 ms |
384 KB |
Output is correct |
5 |
Correct |
1 ms |
384 KB |
Output is correct |
6 |
Correct |
1 ms |
384 KB |
Output is correct |
7 |
Correct |
1 ms |
384 KB |
Output is correct |
8 |
Correct |
21 ms |
2176 KB |
Output is correct |
9 |
Correct |
21 ms |
2176 KB |
Output is correct |
10 |
Correct |
22 ms |
2048 KB |
Output is correct |