#include <bits/stdc++.h>
using namespace std;
int main() {
ios_base::sync_with_stdio(0);
cin.tie(0);
int n, m, k, ans = 0;
cin >> n >> m >> k;
bool arr[n + 1] = {};
while (m--) {
int x;
cin >> x;
for (int i = x - k; i <= n && i <= x + k; i++)
arr[i] = 1;
}
for (int i = 1; i <= n; i++) {
if (!arr[i]) {
for (int j = 0; j < k * 2 + 1 && i + j <= n; j++)
arr[i + j] = 1;
ans++;
}
}
cout << ans << '\n';
return 0;
}
# |
Verdict |
Execution time |
Memory |
Grader output |
1 |
Correct |
5 ms |
376 KB |
Output is correct |
2 |
Correct |
5 ms |
376 KB |
Output is correct |
3 |
Correct |
5 ms |
376 KB |
Output is correct |
4 |
Correct |
5 ms |
376 KB |
Output is correct |
5 |
Correct |
5 ms |
376 KB |
Output is correct |
6 |
Correct |
5 ms |
376 KB |
Output is correct |
7 |
Correct |
5 ms |
376 KB |
Output is correct |
8 |
Correct |
5 ms |
376 KB |
Output is correct |
9 |
Correct |
5 ms |
376 KB |
Output is correct |
10 |
Correct |
5 ms |
376 KB |
Output is correct |