#include <bits/stdc++.h>
using namespace std;
const int inf = 1e5;
void solve(vector<int> &a, int m) {
a.insert(a.begin(), 0);
int n = a.size();
// dp[i] is the minimum number of operations on the prefix [0 ... i]
// such that the i-th element is retained.
vector<int> dp(n, inf);
dp[0] = 0;
for (int i = 0; i < n; i++) {
for (int j = i - 1; j >= 0; j--) {
// Assume that j is the second last retained element.
if (a[i] - a[j] <= (i - j) * m) {
dp[i] = min(dp[i], dp[j] + i - j - 1);
}
}
}
int ans = n;
for (int i = 0; i < n; i++) {
// i-th element is the last retained element, all elements to the
// right are deleted.
ans = min(ans, dp[i] + (n - 1 - i));
}
cout << ans << endl;
}
int main() {
int n, m;
cin >> n >> m;
vector<int> a(n);
for (int i = 0; i < n; i++) {
cin >> a[i];
}
solve(a, m);
return 0;
}
| # |
결과 |
실행 시간 |
메모리 |
Grader output |
| 1 |
Correct |
0 ms |
348 KB |
Output is correct |
| 2 |
Correct |
1 ms |
348 KB |
Output is correct |
| 3 |
Correct |
0 ms |
348 KB |
Output is correct |
| 4 |
Correct |
0 ms |
364 KB |
Output is correct |
| 5 |
Correct |
0 ms |
348 KB |
Output is correct |
| 6 |
Correct |
0 ms |
344 KB |
Output is correct |
| 7 |
Correct |
0 ms |
344 KB |
Output is correct |
| 8 |
Correct |
0 ms |
344 KB |
Output is correct |
| 9 |
Correct |
1 ms |
432 KB |
Output is correct |
| 10 |
Correct |
0 ms |
344 KB |
Output is correct |
| 11 |
Correct |
0 ms |
432 KB |
Output is correct |
| 12 |
Correct |
0 ms |
348 KB |
Output is correct |
| 13 |
Correct |
0 ms |
348 KB |
Output is correct |
| 14 |
Correct |
1 ms |
348 KB |
Output is correct |
| 15 |
Correct |
0 ms |
348 KB |
Output is correct |
| 16 |
Correct |
0 ms |
348 KB |
Output is correct |
| # |
결과 |
실행 시간 |
메모리 |
Grader output |
| 1 |
Correct |
0 ms |
348 KB |
Output is correct |
| 2 |
Correct |
1 ms |
348 KB |
Output is correct |
| 3 |
Correct |
0 ms |
348 KB |
Output is correct |
| 4 |
Correct |
0 ms |
364 KB |
Output is correct |
| 5 |
Correct |
0 ms |
348 KB |
Output is correct |
| 6 |
Correct |
0 ms |
344 KB |
Output is correct |
| 7 |
Correct |
0 ms |
344 KB |
Output is correct |
| 8 |
Correct |
0 ms |
344 KB |
Output is correct |
| 9 |
Correct |
1 ms |
432 KB |
Output is correct |
| 10 |
Correct |
0 ms |
344 KB |
Output is correct |
| 11 |
Correct |
0 ms |
432 KB |
Output is correct |
| 12 |
Correct |
0 ms |
348 KB |
Output is correct |
| 13 |
Correct |
0 ms |
348 KB |
Output is correct |
| 14 |
Correct |
1 ms |
348 KB |
Output is correct |
| 15 |
Correct |
0 ms |
348 KB |
Output is correct |
| 16 |
Correct |
0 ms |
348 KB |
Output is correct |
| 17 |
Correct |
0 ms |
348 KB |
Output is correct |
| 18 |
Correct |
0 ms |
348 KB |
Output is correct |
| 19 |
Correct |
0 ms |
348 KB |
Output is correct |
| 20 |
Correct |
10 ms |
492 KB |
Output is correct |
| 21 |
Correct |
15 ms |
348 KB |
Output is correct |
| 22 |
Correct |
35 ms |
348 KB |
Output is correct |
| 23 |
Correct |
16 ms |
348 KB |
Output is correct |
| 24 |
Correct |
19 ms |
348 KB |
Output is correct |
| 25 |
Correct |
16 ms |
348 KB |
Output is correct |
| 26 |
Correct |
16 ms |
476 KB |
Output is correct |
| 27 |
Correct |
16 ms |
348 KB |
Output is correct |
| 28 |
Correct |
16 ms |
344 KB |
Output is correct |
| 29 |
Correct |
19 ms |
344 KB |
Output is correct |
| 30 |
Correct |
15 ms |
348 KB |
Output is correct |
| 31 |
Correct |
12 ms |
348 KB |
Output is correct |
| 32 |
Correct |
16 ms |
496 KB |
Output is correct |
| 33 |
Correct |
15 ms |
348 KB |
Output is correct |
| # |
결과 |
실행 시간 |
메모리 |
Grader output |
| 1 |
Correct |
0 ms |
348 KB |
Output is correct |
| 2 |
Correct |
0 ms |
348 KB |
Output is correct |
| 3 |
Correct |
0 ms |
348 KB |
Output is correct |
| 4 |
Correct |
10 ms |
492 KB |
Output is correct |
| 5 |
Correct |
15 ms |
348 KB |
Output is correct |
| 6 |
Correct |
35 ms |
348 KB |
Output is correct |
| 7 |
Correct |
16 ms |
348 KB |
Output is correct |
| 8 |
Correct |
19 ms |
348 KB |
Output is correct |
| 9 |
Correct |
16 ms |
348 KB |
Output is correct |
| 10 |
Correct |
16 ms |
476 KB |
Output is correct |
| 11 |
Correct |
16 ms |
348 KB |
Output is correct |
| 12 |
Correct |
16 ms |
344 KB |
Output is correct |
| 13 |
Correct |
19 ms |
344 KB |
Output is correct |
| 14 |
Correct |
15 ms |
348 KB |
Output is correct |
| 15 |
Correct |
12 ms |
348 KB |
Output is correct |
| 16 |
Correct |
16 ms |
496 KB |
Output is correct |
| 17 |
Correct |
15 ms |
348 KB |
Output is correct |
| 18 |
Correct |
0 ms |
348 KB |
Output is correct |
| 19 |
Correct |
1 ms |
348 KB |
Output is correct |
| 20 |
Correct |
0 ms |
348 KB |
Output is correct |
| 21 |
Correct |
0 ms |
364 KB |
Output is correct |
| 22 |
Correct |
0 ms |
348 KB |
Output is correct |
| 23 |
Correct |
0 ms |
344 KB |
Output is correct |
| 24 |
Correct |
0 ms |
344 KB |
Output is correct |
| 25 |
Correct |
0 ms |
344 KB |
Output is correct |
| 26 |
Correct |
1 ms |
432 KB |
Output is correct |
| 27 |
Correct |
0 ms |
344 KB |
Output is correct |
| 28 |
Correct |
0 ms |
432 KB |
Output is correct |
| 29 |
Correct |
0 ms |
348 KB |
Output is correct |
| 30 |
Correct |
0 ms |
348 KB |
Output is correct |
| 31 |
Correct |
1 ms |
348 KB |
Output is correct |
| 32 |
Correct |
0 ms |
348 KB |
Output is correct |
| 33 |
Correct |
0 ms |
348 KB |
Output is correct |
| 34 |
Correct |
36 ms |
348 KB |
Output is correct |
| 35 |
Correct |
36 ms |
344 KB |
Output is correct |
| 36 |
Correct |
36 ms |
344 KB |
Output is correct |
| 37 |
Correct |
16 ms |
344 KB |
Output is correct |
| 38 |
Correct |
16 ms |
348 KB |
Output is correct |
| 39 |
Correct |
16 ms |
348 KB |
Output is correct |
| 40 |
Correct |
14 ms |
348 KB |
Output is correct |
| 41 |
Correct |
16 ms |
348 KB |
Output is correct |
| 42 |
Correct |
16 ms |
600 KB |
Output is correct |
| 43 |
Correct |
17 ms |
348 KB |
Output is correct |
| # |
결과 |
실행 시간 |
메모리 |
Grader output |
| 1 |
Correct |
36 ms |
348 KB |
Output is correct |
| 2 |
Correct |
36 ms |
344 KB |
Output is correct |
| 3 |
Correct |
36 ms |
344 KB |
Output is correct |
| 4 |
Correct |
16 ms |
344 KB |
Output is correct |
| 5 |
Correct |
16 ms |
348 KB |
Output is correct |
| 6 |
Correct |
16 ms |
348 KB |
Output is correct |
| 7 |
Correct |
14 ms |
348 KB |
Output is correct |
| 8 |
Correct |
16 ms |
348 KB |
Output is correct |
| 9 |
Correct |
16 ms |
600 KB |
Output is correct |
| 10 |
Correct |
17 ms |
348 KB |
Output is correct |
| 11 |
Correct |
0 ms |
348 KB |
Output is correct |
| 12 |
Correct |
0 ms |
348 KB |
Output is correct |
| 13 |
Correct |
0 ms |
348 KB |
Output is correct |
| 14 |
Correct |
10 ms |
492 KB |
Output is correct |
| 15 |
Correct |
15 ms |
348 KB |
Output is correct |
| 16 |
Correct |
35 ms |
348 KB |
Output is correct |
| 17 |
Correct |
16 ms |
348 KB |
Output is correct |
| 18 |
Correct |
19 ms |
348 KB |
Output is correct |
| 19 |
Correct |
16 ms |
348 KB |
Output is correct |
| 20 |
Correct |
16 ms |
476 KB |
Output is correct |
| 21 |
Correct |
16 ms |
348 KB |
Output is correct |
| 22 |
Correct |
16 ms |
344 KB |
Output is correct |
| 23 |
Correct |
19 ms |
344 KB |
Output is correct |
| 24 |
Correct |
15 ms |
348 KB |
Output is correct |
| 25 |
Correct |
12 ms |
348 KB |
Output is correct |
| 26 |
Correct |
16 ms |
496 KB |
Output is correct |
| 27 |
Correct |
15 ms |
348 KB |
Output is correct |
| 28 |
Correct |
0 ms |
348 KB |
Output is correct |
| 29 |
Correct |
1 ms |
348 KB |
Output is correct |
| 30 |
Correct |
0 ms |
348 KB |
Output is correct |
| 31 |
Correct |
0 ms |
364 KB |
Output is correct |
| 32 |
Correct |
0 ms |
348 KB |
Output is correct |
| 33 |
Correct |
0 ms |
344 KB |
Output is correct |
| 34 |
Correct |
0 ms |
344 KB |
Output is correct |
| 35 |
Correct |
0 ms |
344 KB |
Output is correct |
| 36 |
Correct |
1 ms |
432 KB |
Output is correct |
| 37 |
Correct |
0 ms |
344 KB |
Output is correct |
| 38 |
Correct |
0 ms |
432 KB |
Output is correct |
| 39 |
Correct |
0 ms |
348 KB |
Output is correct |
| 40 |
Correct |
0 ms |
348 KB |
Output is correct |
| 41 |
Correct |
1 ms |
348 KB |
Output is correct |
| 42 |
Correct |
0 ms |
348 KB |
Output is correct |
| 43 |
Correct |
0 ms |
348 KB |
Output is correct |
| 44 |
Execution timed out |
1060 ms |
2392 KB |
Time limit exceeded |
| 45 |
Halted |
0 ms |
0 KB |
- |
