#include <iostream>
using namespace std;
using ll = long long;
const int LOG = 20;
const int maxn = 1e5 + 5;
int log_dp[maxn+5];
int T[maxn+5][LOG];
ll dp[maxn+5][105];
int query(int l, int r) {
int k = log_dp[r-l+1];
return max(T[l][k], T[r-(1<<k)+1][k]);
}
void f(int l, int r, int tl, int tr, int j) {
if(l > r) return ;
int tm = (l + r) / 2, p = tl;
for(int i=tl; i<=min(tm, tr); i++) {
ll v = dp[i-1][j-1] + query(i, tm);
if(v < dp[tm][j]) {
dp[tm][j] = v;
p = i;
}
}
f(l, tm-1, tl, p, j);
f(tm+1, r, p, tr, j);
}
signed main() {
log_dp[1] = 0;
for(int i=2; i<=maxn; i++) log_dp[i] = log_dp[i/2] + 1;
int n, k;
cin >> n >> k;
int v[n+1];
for(int i=1; i<=n; i++) cin >> v[i], T[i][0] = v[i];
for(int j=1; j<LOG; j++)
for(int i=1; i+(1<<j)-1<=n; i++)
T[i][j] = max(T[i][j-1], T[i+(1<<(j-1))][j-1]);
for(int i=0; i<=n; i++)
for(int j=0; j<=k; j++) dp[i][j] = 1e18;
dp[0][0] = 0;
if(n <= 100) {
for(int i=1; i<=n; i++) {
for(int j=1; j<=k; j++) {
int mx = 0;
for(int x=i; x>=1; x--) {
mx = max(mx, v[x]);
dp[i][j] = min(dp[i][j], dp[x-1][j-1] + mx);
}
}
}
cout << dp[n][k] << '\n';
return 0;
}
for(int j=1; j<=k; j++) f(1, n, 1, n, j);
cout << dp[n][k] << '\n';
return 0;
}
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
1 ms |
604 KB |
Output is correct |
2 |
Correct |
0 ms |
604 KB |
Output is correct |
3 |
Correct |
0 ms |
608 KB |
Output is correct |
4 |
Correct |
1 ms |
628 KB |
Output is correct |
5 |
Correct |
1 ms |
856 KB |
Output is correct |
6 |
Correct |
1 ms |
604 KB |
Output is correct |
7 |
Correct |
0 ms |
604 KB |
Output is correct |
8 |
Correct |
1 ms |
604 KB |
Output is correct |
9 |
Correct |
0 ms |
860 KB |
Output is correct |
10 |
Correct |
0 ms |
604 KB |
Output is correct |
11 |
Correct |
1 ms |
604 KB |
Output is correct |
12 |
Correct |
1 ms |
860 KB |
Output is correct |
13 |
Correct |
0 ms |
840 KB |
Output is correct |
14 |
Correct |
0 ms |
860 KB |
Output is correct |
15 |
Correct |
0 ms |
860 KB |
Output is correct |
16 |
Correct |
0 ms |
860 KB |
Output is correct |
17 |
Correct |
1 ms |
856 KB |
Output is correct |
18 |
Correct |
0 ms |
860 KB |
Output is correct |
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
1 ms |
860 KB |
Output is correct |
2 |
Correct |
1 ms |
604 KB |
Output is correct |
3 |
Correct |
0 ms |
604 KB |
Output is correct |
4 |
Correct |
1 ms |
604 KB |
Output is correct |
5 |
Correct |
0 ms |
604 KB |
Output is correct |
6 |
Correct |
0 ms |
604 KB |
Output is correct |
7 |
Correct |
1 ms |
604 KB |
Output is correct |
8 |
Correct |
1 ms |
600 KB |
Output is correct |
9 |
Correct |
1 ms |
604 KB |
Output is correct |
10 |
Correct |
0 ms |
604 KB |
Output is correct |
11 |
Correct |
0 ms |
860 KB |
Output is correct |
12 |
Correct |
0 ms |
604 KB |
Output is correct |
13 |
Correct |
1 ms |
604 KB |
Output is correct |
14 |
Correct |
0 ms |
860 KB |
Output is correct |
15 |
Correct |
1 ms |
860 KB |
Output is correct |
16 |
Correct |
1 ms |
856 KB |
Output is correct |
17 |
Correct |
1 ms |
860 KB |
Output is correct |
18 |
Correct |
0 ms |
860 KB |
Output is correct |
19 |
Correct |
0 ms |
860 KB |
Output is correct |
20 |
Correct |
1 ms |
860 KB |
Output is correct |
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
1 ms |
604 KB |
Output is correct |
2 |
Correct |
0 ms |
604 KB |
Output is correct |
3 |
Correct |
0 ms |
608 KB |
Output is correct |
4 |
Correct |
1 ms |
628 KB |
Output is correct |
5 |
Correct |
1 ms |
856 KB |
Output is correct |
6 |
Correct |
1 ms |
604 KB |
Output is correct |
7 |
Correct |
0 ms |
604 KB |
Output is correct |
8 |
Correct |
1 ms |
604 KB |
Output is correct |
9 |
Correct |
0 ms |
860 KB |
Output is correct |
10 |
Correct |
0 ms |
604 KB |
Output is correct |
11 |
Correct |
1 ms |
604 KB |
Output is correct |
12 |
Correct |
1 ms |
860 KB |
Output is correct |
13 |
Correct |
0 ms |
840 KB |
Output is correct |
14 |
Correct |
0 ms |
860 KB |
Output is correct |
15 |
Correct |
0 ms |
860 KB |
Output is correct |
16 |
Correct |
0 ms |
860 KB |
Output is correct |
17 |
Correct |
1 ms |
856 KB |
Output is correct |
18 |
Correct |
0 ms |
860 KB |
Output is correct |
19 |
Correct |
1 ms |
860 KB |
Output is correct |
20 |
Correct |
1 ms |
604 KB |
Output is correct |
21 |
Correct |
0 ms |
604 KB |
Output is correct |
22 |
Correct |
1 ms |
604 KB |
Output is correct |
23 |
Correct |
0 ms |
604 KB |
Output is correct |
24 |
Correct |
0 ms |
604 KB |
Output is correct |
25 |
Correct |
1 ms |
604 KB |
Output is correct |
26 |
Correct |
1 ms |
600 KB |
Output is correct |
27 |
Correct |
1 ms |
604 KB |
Output is correct |
28 |
Correct |
0 ms |
604 KB |
Output is correct |
29 |
Correct |
0 ms |
860 KB |
Output is correct |
30 |
Correct |
0 ms |
604 KB |
Output is correct |
31 |
Correct |
1 ms |
604 KB |
Output is correct |
32 |
Correct |
0 ms |
860 KB |
Output is correct |
33 |
Correct |
1 ms |
860 KB |
Output is correct |
34 |
Correct |
1 ms |
856 KB |
Output is correct |
35 |
Correct |
1 ms |
860 KB |
Output is correct |
36 |
Correct |
0 ms |
860 KB |
Output is correct |
37 |
Correct |
0 ms |
860 KB |
Output is correct |
38 |
Correct |
1 ms |
860 KB |
Output is correct |
39 |
Correct |
1 ms |
860 KB |
Output is correct |
40 |
Correct |
0 ms |
604 KB |
Output is correct |
41 |
Correct |
1 ms |
604 KB |
Output is correct |
42 |
Correct |
0 ms |
656 KB |
Output is correct |
43 |
Correct |
0 ms |
604 KB |
Output is correct |
44 |
Correct |
0 ms |
604 KB |
Output is correct |
45 |
Correct |
0 ms |
604 KB |
Output is correct |
46 |
Correct |
0 ms |
604 KB |
Output is correct |
47 |
Correct |
0 ms |
604 KB |
Output is correct |
48 |
Correct |
1 ms |
604 KB |
Output is correct |
49 |
Correct |
0 ms |
604 KB |
Output is correct |
50 |
Correct |
0 ms |
604 KB |
Output is correct |
51 |
Correct |
1 ms |
860 KB |
Output is correct |
52 |
Correct |
1 ms |
860 KB |
Output is correct |
53 |
Correct |
1 ms |
860 KB |
Output is correct |
54 |
Correct |
1 ms |
856 KB |
Output is correct |
55 |
Correct |
1 ms |
860 KB |
Output is correct |
56 |
Correct |
1 ms |
836 KB |
Output is correct |
57 |
Correct |
1 ms |
860 KB |
Output is correct |
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
1 ms |
604 KB |
Output is correct |
2 |
Correct |
0 ms |
604 KB |
Output is correct |
3 |
Correct |
0 ms |
608 KB |
Output is correct |
4 |
Correct |
1 ms |
628 KB |
Output is correct |
5 |
Correct |
1 ms |
856 KB |
Output is correct |
6 |
Correct |
1 ms |
604 KB |
Output is correct |
7 |
Correct |
0 ms |
604 KB |
Output is correct |
8 |
Correct |
1 ms |
604 KB |
Output is correct |
9 |
Correct |
0 ms |
860 KB |
Output is correct |
10 |
Correct |
0 ms |
604 KB |
Output is correct |
11 |
Correct |
1 ms |
604 KB |
Output is correct |
12 |
Correct |
1 ms |
860 KB |
Output is correct |
13 |
Correct |
0 ms |
840 KB |
Output is correct |
14 |
Correct |
0 ms |
860 KB |
Output is correct |
15 |
Correct |
0 ms |
860 KB |
Output is correct |
16 |
Correct |
0 ms |
860 KB |
Output is correct |
17 |
Correct |
1 ms |
856 KB |
Output is correct |
18 |
Correct |
0 ms |
860 KB |
Output is correct |
19 |
Correct |
1 ms |
860 KB |
Output is correct |
20 |
Correct |
1 ms |
604 KB |
Output is correct |
21 |
Correct |
0 ms |
604 KB |
Output is correct |
22 |
Correct |
1 ms |
604 KB |
Output is correct |
23 |
Correct |
0 ms |
604 KB |
Output is correct |
24 |
Correct |
0 ms |
604 KB |
Output is correct |
25 |
Correct |
1 ms |
604 KB |
Output is correct |
26 |
Correct |
1 ms |
600 KB |
Output is correct |
27 |
Correct |
1 ms |
604 KB |
Output is correct |
28 |
Correct |
0 ms |
604 KB |
Output is correct |
29 |
Correct |
0 ms |
860 KB |
Output is correct |
30 |
Correct |
0 ms |
604 KB |
Output is correct |
31 |
Correct |
1 ms |
604 KB |
Output is correct |
32 |
Correct |
0 ms |
860 KB |
Output is correct |
33 |
Correct |
1 ms |
860 KB |
Output is correct |
34 |
Correct |
1 ms |
856 KB |
Output is correct |
35 |
Correct |
1 ms |
860 KB |
Output is correct |
36 |
Correct |
0 ms |
860 KB |
Output is correct |
37 |
Correct |
0 ms |
860 KB |
Output is correct |
38 |
Correct |
1 ms |
860 KB |
Output is correct |
39 |
Correct |
1 ms |
860 KB |
Output is correct |
40 |
Correct |
0 ms |
604 KB |
Output is correct |
41 |
Correct |
1 ms |
604 KB |
Output is correct |
42 |
Correct |
0 ms |
656 KB |
Output is correct |
43 |
Correct |
0 ms |
604 KB |
Output is correct |
44 |
Correct |
0 ms |
604 KB |
Output is correct |
45 |
Correct |
0 ms |
604 KB |
Output is correct |
46 |
Correct |
0 ms |
604 KB |
Output is correct |
47 |
Correct |
0 ms |
604 KB |
Output is correct |
48 |
Correct |
1 ms |
604 KB |
Output is correct |
49 |
Correct |
0 ms |
604 KB |
Output is correct |
50 |
Correct |
0 ms |
604 KB |
Output is correct |
51 |
Correct |
1 ms |
860 KB |
Output is correct |
52 |
Correct |
1 ms |
860 KB |
Output is correct |
53 |
Correct |
1 ms |
860 KB |
Output is correct |
54 |
Correct |
1 ms |
856 KB |
Output is correct |
55 |
Correct |
1 ms |
860 KB |
Output is correct |
56 |
Correct |
1 ms |
836 KB |
Output is correct |
57 |
Correct |
1 ms |
860 KB |
Output is correct |
58 |
Correct |
18 ms |
10072 KB |
Output is correct |
59 |
Correct |
25 ms |
41220 KB |
Output is correct |
60 |
Correct |
43 ms |
41296 KB |
Output is correct |
61 |
Incorrect |
237 ms |
41304 KB |
Output isn't correct |
62 |
Halted |
0 ms |
0 KB |
- |