#include <bits/stdc++.h>
//#pragma GCC optimize("Ofast")
#define ll long long
#define ff first
#define ss second
#define int ll
#define all(v) v.begin(), v.end()
#define rall(v) v.rbegin(), v.rend()
#define pb push_back
#define pii pair <int, int>
using namespace std;
const int inf = 1e15;
const int mod = 1e9+7;
const int N = 3e5+100;
struct segtree{
int size;
vector <int> t;
segtree(int n){
size = 1;
while (size < n) size <<= 1;
t.resize(2*size - 1);
}
void set(int i, int v, int x, int lx, int rx){
if (rx - lx == 1){
t[x] = v;
return;
}
int m = (lx + rx) / 2;
if (i < m) set(i, v, 2*x + 1, lx, m);
else set(i, v, 2*x + 2, m, rx);
t[x] = max(t[2*x + 1], t[2*x + 2]);
}
void set(int i, int v){
set(i, v, 0, 0, size);
}
int get(int l, int r, int x, int lx, int rx){
if (l >= rx || lx >= r) return 0;
if (l <= lx && r >= rx) return t[x];
int m = (lx + rx) / 2;
return max(get(l, r, 2*x + 1, lx, m), get(l, r, 2*x + 2, m, rx));
}
int get(int l, int r){
return get(l, r + 1, 0, 0, size);
}
};
void solve(){
int n, m;
cin >> n >> m;
vector <int> a(n+1);
for (int i = 1; i <= n; ++i) cin >> a[i];
vector <int> dp(n+1);
dp[0] = 0;
for (int i = 1; i <= n; ++i){
if (a[i] > m * i){
dp[i] = -inf;
continue;
}
dp[i] = 1;
for (int j = i - 1; j > 0; --j){
if (dp[j] == -inf) continue;
if (a[j] + m * (i - j) >= a[i]) dp[i] = max(dp[i], dp[j] + 1);
}
}
cout << n - *max_element(all(dp));
}
signed main(){
ios::sync_with_stdio(false); cin.tie(NULL); cout.tie(NULL);
int tt = 1;
//cin >> tt;
while (tt--){
solve();
cout << '\n';
}
}
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
1 ms |
204 KB |
Output is correct |
2 |
Correct |
1 ms |
204 KB |
Output is correct |
3 |
Correct |
0 ms |
204 KB |
Output is correct |
4 |
Correct |
1 ms |
204 KB |
Output is correct |
5 |
Correct |
1 ms |
204 KB |
Output is correct |
6 |
Correct |
1 ms |
204 KB |
Output is correct |
7 |
Correct |
1 ms |
204 KB |
Output is correct |
8 |
Correct |
1 ms |
204 KB |
Output is correct |
9 |
Correct |
1 ms |
204 KB |
Output is correct |
10 |
Correct |
0 ms |
312 KB |
Output is correct |
11 |
Correct |
1 ms |
312 KB |
Output is correct |
12 |
Correct |
1 ms |
204 KB |
Output is correct |
13 |
Correct |
1 ms |
204 KB |
Output is correct |
14 |
Correct |
1 ms |
204 KB |
Output is correct |
15 |
Correct |
1 ms |
204 KB |
Output is correct |
16 |
Correct |
0 ms |
204 KB |
Output is correct |
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
1 ms |
204 KB |
Output is correct |
2 |
Correct |
1 ms |
204 KB |
Output is correct |
3 |
Correct |
0 ms |
204 KB |
Output is correct |
4 |
Correct |
1 ms |
204 KB |
Output is correct |
5 |
Correct |
1 ms |
204 KB |
Output is correct |
6 |
Correct |
1 ms |
204 KB |
Output is correct |
7 |
Correct |
1 ms |
204 KB |
Output is correct |
8 |
Correct |
1 ms |
204 KB |
Output is correct |
9 |
Correct |
1 ms |
204 KB |
Output is correct |
10 |
Correct |
0 ms |
312 KB |
Output is correct |
11 |
Correct |
1 ms |
312 KB |
Output is correct |
12 |
Correct |
1 ms |
204 KB |
Output is correct |
13 |
Correct |
1 ms |
204 KB |
Output is correct |
14 |
Correct |
1 ms |
204 KB |
Output is correct |
15 |
Correct |
1 ms |
204 KB |
Output is correct |
16 |
Correct |
0 ms |
204 KB |
Output is correct |
17 |
Correct |
1 ms |
204 KB |
Output is correct |
18 |
Correct |
1 ms |
204 KB |
Output is correct |
19 |
Correct |
1 ms |
204 KB |
Output is correct |
20 |
Correct |
32 ms |
332 KB |
Output is correct |
21 |
Correct |
49 ms |
388 KB |
Output is correct |
22 |
Correct |
1 ms |
332 KB |
Output is correct |
23 |
Correct |
51 ms |
324 KB |
Output is correct |
24 |
Correct |
49 ms |
332 KB |
Output is correct |
25 |
Correct |
48 ms |
332 KB |
Output is correct |
26 |
Correct |
49 ms |
332 KB |
Output is correct |
27 |
Correct |
38 ms |
444 KB |
Output is correct |
28 |
Correct |
49 ms |
320 KB |
Output is correct |
29 |
Correct |
50 ms |
332 KB |
Output is correct |
30 |
Correct |
53 ms |
392 KB |
Output is correct |
31 |
Correct |
32 ms |
420 KB |
Output is correct |
32 |
Correct |
48 ms |
332 KB |
Output is correct |
33 |
Correct |
48 ms |
332 KB |
Output is correct |
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
1 ms |
204 KB |
Output is correct |
2 |
Correct |
1 ms |
204 KB |
Output is correct |
3 |
Correct |
1 ms |
204 KB |
Output is correct |
4 |
Correct |
32 ms |
332 KB |
Output is correct |
5 |
Correct |
49 ms |
388 KB |
Output is correct |
6 |
Correct |
1 ms |
332 KB |
Output is correct |
7 |
Correct |
51 ms |
324 KB |
Output is correct |
8 |
Correct |
49 ms |
332 KB |
Output is correct |
9 |
Correct |
48 ms |
332 KB |
Output is correct |
10 |
Correct |
49 ms |
332 KB |
Output is correct |
11 |
Correct |
38 ms |
444 KB |
Output is correct |
12 |
Correct |
49 ms |
320 KB |
Output is correct |
13 |
Correct |
50 ms |
332 KB |
Output is correct |
14 |
Correct |
53 ms |
392 KB |
Output is correct |
15 |
Correct |
32 ms |
420 KB |
Output is correct |
16 |
Correct |
48 ms |
332 KB |
Output is correct |
17 |
Correct |
48 ms |
332 KB |
Output is correct |
18 |
Correct |
1 ms |
204 KB |
Output is correct |
19 |
Correct |
1 ms |
204 KB |
Output is correct |
20 |
Correct |
0 ms |
204 KB |
Output is correct |
21 |
Correct |
1 ms |
204 KB |
Output is correct |
22 |
Correct |
1 ms |
204 KB |
Output is correct |
23 |
Correct |
1 ms |
204 KB |
Output is correct |
24 |
Correct |
1 ms |
204 KB |
Output is correct |
25 |
Correct |
1 ms |
204 KB |
Output is correct |
26 |
Correct |
1 ms |
204 KB |
Output is correct |
27 |
Correct |
0 ms |
312 KB |
Output is correct |
28 |
Correct |
1 ms |
312 KB |
Output is correct |
29 |
Correct |
1 ms |
204 KB |
Output is correct |
30 |
Correct |
1 ms |
204 KB |
Output is correct |
31 |
Correct |
1 ms |
204 KB |
Output is correct |
32 |
Correct |
1 ms |
204 KB |
Output is correct |
33 |
Correct |
0 ms |
204 KB |
Output is correct |
34 |
Correct |
1 ms |
368 KB |
Output is correct |
35 |
Correct |
1 ms |
332 KB |
Output is correct |
36 |
Correct |
1 ms |
332 KB |
Output is correct |
37 |
Correct |
51 ms |
328 KB |
Output is correct |
38 |
Correct |
34 ms |
332 KB |
Output is correct |
39 |
Correct |
49 ms |
416 KB |
Output is correct |
40 |
Correct |
30 ms |
460 KB |
Output is correct |
41 |
Correct |
1 ms |
332 KB |
Output is correct |
42 |
Correct |
53 ms |
332 KB |
Output is correct |
43 |
Correct |
50 ms |
332 KB |
Output is correct |
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
1 ms |
368 KB |
Output is correct |
2 |
Correct |
1 ms |
332 KB |
Output is correct |
3 |
Correct |
1 ms |
332 KB |
Output is correct |
4 |
Correct |
51 ms |
328 KB |
Output is correct |
5 |
Correct |
34 ms |
332 KB |
Output is correct |
6 |
Correct |
49 ms |
416 KB |
Output is correct |
7 |
Correct |
30 ms |
460 KB |
Output is correct |
8 |
Correct |
1 ms |
332 KB |
Output is correct |
9 |
Correct |
53 ms |
332 KB |
Output is correct |
10 |
Correct |
50 ms |
332 KB |
Output is correct |
11 |
Correct |
1 ms |
204 KB |
Output is correct |
12 |
Correct |
1 ms |
204 KB |
Output is correct |
13 |
Correct |
1 ms |
204 KB |
Output is correct |
14 |
Correct |
32 ms |
332 KB |
Output is correct |
15 |
Correct |
49 ms |
388 KB |
Output is correct |
16 |
Correct |
1 ms |
332 KB |
Output is correct |
17 |
Correct |
51 ms |
324 KB |
Output is correct |
18 |
Correct |
49 ms |
332 KB |
Output is correct |
19 |
Correct |
48 ms |
332 KB |
Output is correct |
20 |
Correct |
49 ms |
332 KB |
Output is correct |
21 |
Correct |
38 ms |
444 KB |
Output is correct |
22 |
Correct |
49 ms |
320 KB |
Output is correct |
23 |
Correct |
50 ms |
332 KB |
Output is correct |
24 |
Correct |
53 ms |
392 KB |
Output is correct |
25 |
Correct |
32 ms |
420 KB |
Output is correct |
26 |
Correct |
48 ms |
332 KB |
Output is correct |
27 |
Correct |
48 ms |
332 KB |
Output is correct |
28 |
Correct |
1 ms |
204 KB |
Output is correct |
29 |
Correct |
1 ms |
204 KB |
Output is correct |
30 |
Correct |
0 ms |
204 KB |
Output is correct |
31 |
Correct |
1 ms |
204 KB |
Output is correct |
32 |
Correct |
1 ms |
204 KB |
Output is correct |
33 |
Correct |
1 ms |
204 KB |
Output is correct |
34 |
Correct |
1 ms |
204 KB |
Output is correct |
35 |
Correct |
1 ms |
204 KB |
Output is correct |
36 |
Correct |
1 ms |
204 KB |
Output is correct |
37 |
Correct |
0 ms |
312 KB |
Output is correct |
38 |
Correct |
1 ms |
312 KB |
Output is correct |
39 |
Correct |
1 ms |
204 KB |
Output is correct |
40 |
Correct |
1 ms |
204 KB |
Output is correct |
41 |
Correct |
1 ms |
204 KB |
Output is correct |
42 |
Correct |
1 ms |
204 KB |
Output is correct |
43 |
Correct |
0 ms |
204 KB |
Output is correct |
44 |
Execution timed out |
1088 ms |
3780 KB |
Time limit exceeded |
45 |
Halted |
0 ms |
0 KB |
- |