// 027 072 207 270 702 720
#include <bits/stdc++.h>
using namespace std;
#define ll long long
#define pb push_back
#define all(x) x.begin(), x.end()
#define fo(i, a, b) for (int i = (a), b_ = (b); i <= b_; ++i)
#define fod(i, a, b) for (int i = (a), b_ = (b); i >= b_; --i)
#define rep(i, n) fo(i, 1, n)
#define per(i, n) fod(i, n, 1)
#define chmax(a, b) a = max(a, b)
#define chmin(a, b) a = min(a, b)
const int N = 1e6+5;
int n, m, a[N], dp[N];
bool reach[N];
void sol() {
cin >> n >> m;
reach[0] = 1;
rep(i, n) {
cin >> a[i];
for (int j = 0; j < i; ++j)
if (a[j] >= a[i] - m * (i - j) && reach[j])
chmax(dp[i], dp[j]+1);
reach[i] = (dp[i] > 0);
}
cout << n - *max_element(dp+1, dp+n+1);
}
signed main() {
cin.tie(0) -> sync_with_stdio(0);
// if (fopen("A.inp", "r")) freopen("A.inp", "r", stdin);
int tc = 1, test = 0; // cin >> tc;
while (++test <= tc) sol();
}
| # |
결과 |
실행 시간 |
메모리 |
Grader output |
| 1 |
Correct |
1 ms |
2396 KB |
Output is correct |
| 2 |
Correct |
1 ms |
2396 KB |
Output is correct |
| 3 |
Correct |
0 ms |
2396 KB |
Output is correct |
| 4 |
Correct |
0 ms |
2396 KB |
Output is correct |
| 5 |
Correct |
0 ms |
2396 KB |
Output is correct |
| 6 |
Correct |
0 ms |
2396 KB |
Output is correct |
| 7 |
Correct |
0 ms |
2396 KB |
Output is correct |
| 8 |
Correct |
1 ms |
2392 KB |
Output is correct |
| 9 |
Correct |
0 ms |
2396 KB |
Output is correct |
| 10 |
Correct |
0 ms |
2396 KB |
Output is correct |
| 11 |
Correct |
0 ms |
2396 KB |
Output is correct |
| 12 |
Correct |
0 ms |
2396 KB |
Output is correct |
| 13 |
Correct |
0 ms |
2396 KB |
Output is correct |
| 14 |
Correct |
1 ms |
2396 KB |
Output is correct |
| 15 |
Correct |
0 ms |
2396 KB |
Output is correct |
| 16 |
Correct |
1 ms |
2504 KB |
Output is correct |
| # |
결과 |
실행 시간 |
메모리 |
Grader output |
| 1 |
Correct |
1 ms |
2396 KB |
Output is correct |
| 2 |
Correct |
1 ms |
2396 KB |
Output is correct |
| 3 |
Correct |
0 ms |
2396 KB |
Output is correct |
| 4 |
Correct |
0 ms |
2396 KB |
Output is correct |
| 5 |
Correct |
0 ms |
2396 KB |
Output is correct |
| 6 |
Correct |
0 ms |
2396 KB |
Output is correct |
| 7 |
Correct |
0 ms |
2396 KB |
Output is correct |
| 8 |
Correct |
1 ms |
2392 KB |
Output is correct |
| 9 |
Correct |
0 ms |
2396 KB |
Output is correct |
| 10 |
Correct |
0 ms |
2396 KB |
Output is correct |
| 11 |
Correct |
0 ms |
2396 KB |
Output is correct |
| 12 |
Correct |
0 ms |
2396 KB |
Output is correct |
| 13 |
Correct |
0 ms |
2396 KB |
Output is correct |
| 14 |
Correct |
1 ms |
2396 KB |
Output is correct |
| 15 |
Correct |
0 ms |
2396 KB |
Output is correct |
| 16 |
Correct |
1 ms |
2504 KB |
Output is correct |
| 17 |
Correct |
1 ms |
2396 KB |
Output is correct |
| 18 |
Correct |
1 ms |
2396 KB |
Output is correct |
| 19 |
Correct |
0 ms |
2396 KB |
Output is correct |
| 20 |
Correct |
6 ms |
2396 KB |
Output is correct |
| 21 |
Correct |
17 ms |
2556 KB |
Output is correct |
| 22 |
Correct |
26 ms |
2548 KB |
Output is correct |
| 23 |
Correct |
9 ms |
2396 KB |
Output is correct |
| 24 |
Correct |
10 ms |
2568 KB |
Output is correct |
| 25 |
Correct |
10 ms |
2396 KB |
Output is correct |
| 26 |
Correct |
10 ms |
2396 KB |
Output is correct |
| 27 |
Correct |
24 ms |
2392 KB |
Output is correct |
| 28 |
Correct |
10 ms |
2548 KB |
Output is correct |
| 29 |
Correct |
9 ms |
2552 KB |
Output is correct |
| 30 |
Correct |
10 ms |
2524 KB |
Output is correct |
| 31 |
Correct |
10 ms |
2548 KB |
Output is correct |
| 32 |
Correct |
9 ms |
2564 KB |
Output is correct |
| 33 |
Correct |
15 ms |
2556 KB |
Output is correct |
| # |
결과 |
실행 시간 |
메모리 |
Grader output |
| 1 |
Correct |
1 ms |
2396 KB |
Output is correct |
| 2 |
Correct |
1 ms |
2396 KB |
Output is correct |
| 3 |
Correct |
0 ms |
2396 KB |
Output is correct |
| 4 |
Correct |
6 ms |
2396 KB |
Output is correct |
| 5 |
Correct |
17 ms |
2556 KB |
Output is correct |
| 6 |
Correct |
26 ms |
2548 KB |
Output is correct |
| 7 |
Correct |
9 ms |
2396 KB |
Output is correct |
| 8 |
Correct |
10 ms |
2568 KB |
Output is correct |
| 9 |
Correct |
10 ms |
2396 KB |
Output is correct |
| 10 |
Correct |
10 ms |
2396 KB |
Output is correct |
| 11 |
Correct |
24 ms |
2392 KB |
Output is correct |
| 12 |
Correct |
10 ms |
2548 KB |
Output is correct |
| 13 |
Correct |
9 ms |
2552 KB |
Output is correct |
| 14 |
Correct |
10 ms |
2524 KB |
Output is correct |
| 15 |
Correct |
10 ms |
2548 KB |
Output is correct |
| 16 |
Correct |
9 ms |
2564 KB |
Output is correct |
| 17 |
Correct |
15 ms |
2556 KB |
Output is correct |
| 18 |
Correct |
1 ms |
2396 KB |
Output is correct |
| 19 |
Correct |
1 ms |
2396 KB |
Output is correct |
| 20 |
Correct |
0 ms |
2396 KB |
Output is correct |
| 21 |
Correct |
0 ms |
2396 KB |
Output is correct |
| 22 |
Correct |
0 ms |
2396 KB |
Output is correct |
| 23 |
Correct |
0 ms |
2396 KB |
Output is correct |
| 24 |
Correct |
0 ms |
2396 KB |
Output is correct |
| 25 |
Correct |
1 ms |
2392 KB |
Output is correct |
| 26 |
Correct |
0 ms |
2396 KB |
Output is correct |
| 27 |
Correct |
0 ms |
2396 KB |
Output is correct |
| 28 |
Correct |
0 ms |
2396 KB |
Output is correct |
| 29 |
Correct |
0 ms |
2396 KB |
Output is correct |
| 30 |
Correct |
0 ms |
2396 KB |
Output is correct |
| 31 |
Correct |
1 ms |
2396 KB |
Output is correct |
| 32 |
Correct |
0 ms |
2396 KB |
Output is correct |
| 33 |
Correct |
1 ms |
2504 KB |
Output is correct |
| 34 |
Correct |
28 ms |
2520 KB |
Output is correct |
| 35 |
Correct |
26 ms |
2396 KB |
Output is correct |
| 36 |
Correct |
37 ms |
2396 KB |
Output is correct |
| 37 |
Correct |
11 ms |
2392 KB |
Output is correct |
| 38 |
Correct |
24 ms |
2396 KB |
Output is correct |
| 39 |
Correct |
12 ms |
2592 KB |
Output is correct |
| 40 |
Correct |
15 ms |
2652 KB |
Output is correct |
| 41 |
Correct |
15 ms |
2544 KB |
Output is correct |
| 42 |
Correct |
11 ms |
2564 KB |
Output is correct |
| 43 |
Correct |
11 ms |
2396 KB |
Output is correct |
| # |
결과 |
실행 시간 |
메모리 |
Grader output |
| 1 |
Correct |
28 ms |
2520 KB |
Output is correct |
| 2 |
Correct |
26 ms |
2396 KB |
Output is correct |
| 3 |
Correct |
37 ms |
2396 KB |
Output is correct |
| 4 |
Correct |
11 ms |
2392 KB |
Output is correct |
| 5 |
Correct |
24 ms |
2396 KB |
Output is correct |
| 6 |
Correct |
12 ms |
2592 KB |
Output is correct |
| 7 |
Correct |
15 ms |
2652 KB |
Output is correct |
| 8 |
Correct |
15 ms |
2544 KB |
Output is correct |
| 9 |
Correct |
11 ms |
2564 KB |
Output is correct |
| 10 |
Correct |
11 ms |
2396 KB |
Output is correct |
| 11 |
Correct |
1 ms |
2396 KB |
Output is correct |
| 12 |
Correct |
1 ms |
2396 KB |
Output is correct |
| 13 |
Correct |
0 ms |
2396 KB |
Output is correct |
| 14 |
Correct |
6 ms |
2396 KB |
Output is correct |
| 15 |
Correct |
17 ms |
2556 KB |
Output is correct |
| 16 |
Correct |
26 ms |
2548 KB |
Output is correct |
| 17 |
Correct |
9 ms |
2396 KB |
Output is correct |
| 18 |
Correct |
10 ms |
2568 KB |
Output is correct |
| 19 |
Correct |
10 ms |
2396 KB |
Output is correct |
| 20 |
Correct |
10 ms |
2396 KB |
Output is correct |
| 21 |
Correct |
24 ms |
2392 KB |
Output is correct |
| 22 |
Correct |
10 ms |
2548 KB |
Output is correct |
| 23 |
Correct |
9 ms |
2552 KB |
Output is correct |
| 24 |
Correct |
10 ms |
2524 KB |
Output is correct |
| 25 |
Correct |
10 ms |
2548 KB |
Output is correct |
| 26 |
Correct |
9 ms |
2564 KB |
Output is correct |
| 27 |
Correct |
15 ms |
2556 KB |
Output is correct |
| 28 |
Correct |
1 ms |
2396 KB |
Output is correct |
| 29 |
Correct |
1 ms |
2396 KB |
Output is correct |
| 30 |
Correct |
0 ms |
2396 KB |
Output is correct |
| 31 |
Correct |
0 ms |
2396 KB |
Output is correct |
| 32 |
Correct |
0 ms |
2396 KB |
Output is correct |
| 33 |
Correct |
0 ms |
2396 KB |
Output is correct |
| 34 |
Correct |
0 ms |
2396 KB |
Output is correct |
| 35 |
Correct |
1 ms |
2392 KB |
Output is correct |
| 36 |
Correct |
0 ms |
2396 KB |
Output is correct |
| 37 |
Correct |
0 ms |
2396 KB |
Output is correct |
| 38 |
Correct |
0 ms |
2396 KB |
Output is correct |
| 39 |
Correct |
0 ms |
2396 KB |
Output is correct |
| 40 |
Correct |
0 ms |
2396 KB |
Output is correct |
| 41 |
Correct |
1 ms |
2396 KB |
Output is correct |
| 42 |
Correct |
0 ms |
2396 KB |
Output is correct |
| 43 |
Correct |
1 ms |
2504 KB |
Output is correct |
| 44 |
Execution timed out |
1041 ms |
2896 KB |
Time limit exceeded |
| 45 |
Halted |
0 ms |
0 KB |
- |
