#include "roads.h"
#include <algorithm>
#include <iostream>
#include <numeric>
#include <cassert>
#include <vector>
typedef long long llong;
const int MAXN = 2000 + 10;
const llong INF = 1e18;
const int INTINF = 1e9;
int n;
std::vector <std::pair <int,int>> g[MAXN];
bool bl[MAXN][MAXN][2];
llong dp[MAXN][MAXN][2];
void firstDFS(int node, int par)
{
for (auto &curr : g[node])
{
if (curr.first == par)
{
std::swap(curr, g[node].back());
g[node].pop_back();
break;
}
}
for (const auto &[u, w] : g[node])
{
firstDFS(u, node);
}
}
llong f(int node, int k, bool k2)
{
// if (k == 1) std::cout << "call: " << node << ' ' << g[node].size() << ' ' << k << '\n';
if (g[node].empty())
{
return 0;
}
if (bl[node][k][k2])
{
return dp[node][k][k2];
}
bl[node][k][k2] = true;
std::vector <std::pair <llong,int>> vals;
for (const auto &[u, w] : g[node])
{
dp[node][k][k2] += w + f(u, k + k2, false);
vals.push_back({f(u, k + k2 - 1, true) - (w + f(u, k + k2, false)), u});
}
std::sort(vals.begin(), vals.end());
for (int i = 0 ; i < std::min((int)vals.size(), k) ; ++i)
{
if (vals[i].first >= 0) break;
dp[node][k][k2] += vals[i].first;
}
return dp[node][k][k2];
}
std::vector <llong> minimum_closure_costs(int N, std::vector <int> U, std::vector <int> V, std::vector <int> W)
{
n = N;
for (int i = 0 ; i < n - 1 ; ++i)
{
g[U[i] + 1].push_back({V[i] + 1, W[i]});
g[V[i] + 1].push_back({U[i] + 1, W[i]});
}
firstDFS(1, 0);
std::vector <llong> ans(n);
for (int i = 0 ; i < n ; ++i)
{
ans[i] = f(1, i, false);
}
for (int i = 1 ; i <= n ; ++i)
{
for (int k = 0 ; k + 1 < n ; ++k)
{
assert(f(i, k, false) - f(i, k + 1, false) >= f(i, k + 1, false) - f(i, k + 2, false));
}
}
return ans;
}
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
1 ms |
600 KB |
Output is correct |
2 |
Correct |
251 ms |
692 KB |
Output is correct |
3 |
Correct |
283 ms |
600 KB |
Output is correct |
4 |
Correct |
302 ms |
852 KB |
Output is correct |
5 |
Correct |
1 ms |
348 KB |
Output is correct |
6 |
Correct |
2 ms |
348 KB |
Output is correct |
7 |
Correct |
2 ms |
348 KB |
Output is correct |
8 |
Correct |
215 ms |
692 KB |
Output is correct |
9 |
Correct |
299 ms |
856 KB |
Output is correct |
10 |
Correct |
2 ms |
344 KB |
Output is correct |
11 |
Correct |
2 ms |
348 KB |
Output is correct |
12 |
Runtime error |
14 ms |
3500 KB |
Execution killed with signal 11 |
13 |
Halted |
0 ms |
0 KB |
- |
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
0 ms |
596 KB |
Output is correct |
2 |
Runtime error |
22 ms |
4700 KB |
Execution killed with signal 11 |
3 |
Halted |
0 ms |
0 KB |
- |
# |
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 |
448 KB |
Output is correct |
4 |
Correct |
3 ms |
7004 KB |
Output is correct |
5 |
Correct |
5 ms |
7004 KB |
Output is correct |
6 |
Correct |
4 ms |
6488 KB |
Output is correct |
7 |
Correct |
4 ms |
7000 KB |
Output is correct |
8 |
Correct |
5 ms |
7104 KB |
Output is correct |
9 |
Correct |
5 ms |
7200 KB |
Output is correct |
10 |
Correct |
4 ms |
7356 KB |
Output is correct |
11 |
Correct |
5 ms |
7260 KB |
Output is correct |
12 |
Correct |
5 ms |
7260 KB |
Output is correct |
13 |
Correct |
1 ms |
348 KB |
Output is correct |
14 |
Correct |
2 ms |
348 KB |
Output is correct |
15 |
Correct |
2 ms |
348 KB |
Output is correct |
16 |
Correct |
2 ms |
4700 KB |
Output is correct |
17 |
Correct |
5 ms |
7132 KB |
Output is correct |
18 |
Correct |
5 ms |
7004 KB |
Output is correct |
19 |
Correct |
2 ms |
348 KB |
Output is correct |
20 |
Correct |
2 ms |
348 KB |
Output is correct |
21 |
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 |
0 ms |
348 KB |
Output is correct |
3 |
Correct |
0 ms |
448 KB |
Output is correct |
4 |
Correct |
3 ms |
7004 KB |
Output is correct |
5 |
Correct |
5 ms |
7004 KB |
Output is correct |
6 |
Correct |
4 ms |
6488 KB |
Output is correct |
7 |
Correct |
4 ms |
7000 KB |
Output is correct |
8 |
Correct |
5 ms |
7104 KB |
Output is correct |
9 |
Correct |
5 ms |
7200 KB |
Output is correct |
10 |
Correct |
4 ms |
7356 KB |
Output is correct |
11 |
Correct |
5 ms |
7260 KB |
Output is correct |
12 |
Correct |
5 ms |
7260 KB |
Output is correct |
13 |
Correct |
1 ms |
348 KB |
Output is correct |
14 |
Correct |
2 ms |
348 KB |
Output is correct |
15 |
Correct |
2 ms |
348 KB |
Output is correct |
16 |
Correct |
2 ms |
4700 KB |
Output is correct |
17 |
Correct |
5 ms |
7132 KB |
Output is correct |
18 |
Correct |
5 ms |
7004 KB |
Output is correct |
19 |
Correct |
2 ms |
348 KB |
Output is correct |
20 |
Correct |
2 ms |
348 KB |
Output is correct |
21 |
Correct |
0 ms |
348 KB |
Output is correct |
22 |
Correct |
1 ms |
348 KB |
Output is correct |
23 |
Correct |
165 ms |
43132 KB |
Output is correct |
24 |
Correct |
445 ms |
69968 KB |
Output is correct |
25 |
Correct |
329 ms |
61844 KB |
Output is correct |
26 |
Correct |
396 ms |
67336 KB |
Output is correct |
27 |
Correct |
383 ms |
11224 KB |
Output is correct |
28 |
Correct |
413 ms |
13024 KB |
Output is correct |
29 |
Correct |
365 ms |
65564 KB |
Output is correct |
30 |
Correct |
313 ms |
43940 KB |
Output is correct |
31 |
Correct |
371 ms |
60668 KB |
Output is correct |
32 |
Correct |
447 ms |
27476 KB |
Output is correct |
33 |
Correct |
333 ms |
63064 KB |
Output is correct |
34 |
Correct |
439 ms |
71672 KB |
Output is correct |
35 |
Correct |
377 ms |
65692 KB |
Output is correct |
36 |
Correct |
246 ms |
600 KB |
Output is correct |
37 |
Correct |
290 ms |
1112 KB |
Output is correct |
38 |
Correct |
315 ms |
604 KB |
Output is correct |
39 |
Correct |
0 ms |
348 KB |
Output is correct |
40 |
Correct |
0 ms |
348 KB |
Output is correct |
41 |
Correct |
3 ms |
7004 KB |
Output is correct |
42 |
Correct |
5 ms |
7004 KB |
Output is correct |
43 |
Correct |
4 ms |
6492 KB |
Output is correct |
44 |
Correct |
5 ms |
7000 KB |
Output is correct |
45 |
Correct |
5 ms |
7096 KB |
Output is correct |
46 |
Correct |
4 ms |
7000 KB |
Output is correct |
47 |
Correct |
4 ms |
7260 KB |
Output is correct |
48 |
Correct |
5 ms |
7260 KB |
Output is correct |
49 |
Correct |
5 ms |
7260 KB |
Output is correct |
50 |
Correct |
1 ms |
348 KB |
Output is correct |
51 |
Correct |
2 ms |
348 KB |
Output is correct |
52 |
Correct |
2 ms |
348 KB |
Output is correct |
53 |
Correct |
283 ms |
54612 KB |
Output is correct |
54 |
Correct |
445 ms |
69976 KB |
Output is correct |
55 |
Correct |
383 ms |
11252 KB |
Output is correct |
56 |
Correct |
223 ms |
676 KB |
Output is correct |
57 |
Correct |
326 ms |
704 KB |
Output is correct |
58 |
Correct |
2 ms |
4700 KB |
Output is correct |
59 |
Correct |
5 ms |
7148 KB |
Output is correct |
60 |
Correct |
7 ms |
7004 KB |
Output is correct |
61 |
Correct |
2 ms |
348 KB |
Output is correct |
62 |
Correct |
2 ms |
348 KB |
Output is correct |
63 |
Correct |
0 ms |
348 KB |
Output is correct |
64 |
Correct |
451 ms |
69148 KB |
Output is correct |
65 |
Correct |
486 ms |
69784 KB |
Output is correct |
66 |
Correct |
471 ms |
56600 KB |
Output is correct |
67 |
Correct |
463 ms |
23384 KB |
Output is correct |
68 |
Correct |
327 ms |
46240 KB |
Output is correct |
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Runtime error |
25 ms |
5216 KB |
Execution killed with signal 11 |
2 |
Halted |
0 ms |
0 KB |
- |
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Runtime error |
25 ms |
5216 KB |
Execution killed with signal 11 |
2 |
Halted |
0 ms |
0 KB |
- |
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
1 ms |
600 KB |
Output is correct |
2 |
Correct |
251 ms |
692 KB |
Output is correct |
3 |
Correct |
283 ms |
600 KB |
Output is correct |
4 |
Correct |
302 ms |
852 KB |
Output is correct |
5 |
Correct |
1 ms |
348 KB |
Output is correct |
6 |
Correct |
2 ms |
348 KB |
Output is correct |
7 |
Correct |
2 ms |
348 KB |
Output is correct |
8 |
Correct |
215 ms |
692 KB |
Output is correct |
9 |
Correct |
299 ms |
856 KB |
Output is correct |
10 |
Correct |
2 ms |
344 KB |
Output is correct |
11 |
Correct |
2 ms |
348 KB |
Output is correct |
12 |
Runtime error |
14 ms |
3500 KB |
Execution killed with signal 11 |
13 |
Halted |
0 ms |
0 KB |
- |